From 3b74dc4bd97e189fdff15d6e623db8a25d606e50 Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 15:54:10 +0100 Subject: [PATCH 1/6] Vendor attrs to avoid unpickle issues #3179 #3192 We have vendored attrs only for its use in licensedcode.models. With this, we avoid updates to the attrs library that would make unpickling the license index fail. Reported-by: Soim @soimkim Reference: https://github.com/nexB/scancode-toolkit/issues/3192 Reference: https://github.com/nexB/scancode-toolkit/issues/3179 Signed-off-by: Philippe Ombredanne --- requirements-dev.txt | 2 + setup-mini.cfg | 1 + setup.cfg | 1 + src/licensedcode/_vendor/__init__.py | 0 src/licensedcode/_vendor/attr/__init__.py | 80 + src/licensedcode/_vendor/attr/__init__.pyi | 484 +++ src/licensedcode/_vendor/attr/_cmp.py | 154 + src/licensedcode/_vendor/attr/_cmp.pyi | 13 + src/licensedcode/_vendor/attr/_compat.py | 261 ++ src/licensedcode/_vendor/attr/_config.py | 33 + src/licensedcode/_vendor/attr/_funcs.py | 422 +++ src/licensedcode/_vendor/attr/_make.py | 3173 +++++++++++++++++ src/licensedcode/_vendor/attr/_next_gen.py | 216 ++ .../_vendor/attr/_version_info.py | 87 + .../_vendor/attr/_version_info.pyi | 9 + src/licensedcode/_vendor/attr/converters.py | 155 + src/licensedcode/_vendor/attr/converters.pyi | 13 + src/licensedcode/_vendor/attr/exceptions.py | 94 + src/licensedcode/_vendor/attr/exceptions.pyi | 17 + src/licensedcode/_vendor/attr/filters.py | 54 + src/licensedcode/_vendor/attr/filters.pyi | 6 + src/licensedcode/_vendor/attr/py.typed | 0 src/licensedcode/_vendor/attr/setters.py | 79 + src/licensedcode/_vendor/attr/setters.pyi | 19 + src/licensedcode/_vendor/attr/validators.py | 561 +++ src/licensedcode/_vendor/attr/validators.pyi | 78 + .../attrs-21.4.0.dist-info/AUTHORS.rst | 11 + .../_vendor/attrs-21.4.0.dist-info/INSTALLER | 1 + .../_vendor/attrs-21.4.0.dist-info/LICENSE | 21 + .../_vendor/attrs-21.4.0.dist-info/METADATA | 232 ++ .../_vendor/attrs-21.4.0.dist-info/RECORD | 57 + .../_vendor/attrs-21.4.0.dist-info/REQUESTED | 0 .../_vendor/attrs-21.4.0.dist-info/WHEEL | 6 + .../attrs-21.4.0.dist-info/top_level.txt | 2 + src/licensedcode/_vendor/attrs.ABOUT | 13 + src/licensedcode/_vendor/attrs/__init__.py | 70 + src/licensedcode/_vendor/attrs/__init__.pyi | 63 + src/licensedcode/_vendor/attrs/converters.py | 3 + src/licensedcode/_vendor/attrs/exceptions.py | 3 + src/licensedcode/_vendor/attrs/filters.py | 3 + src/licensedcode/_vendor/attrs/py.typed | 0 src/licensedcode/_vendor/attrs/setters.py | 3 + src/licensedcode/_vendor/attrs/validators.py | 3 + src/licensedcode/_vendor/mit.LICENSE | 17 + src/licensedcode/cache.py | 21 +- src/licensedcode/models.py | 30 +- src/packagedcode/debian_copyright.py | 30 +- vendorize.toml | 4 + 48 files changed, 6567 insertions(+), 38 deletions(-) create mode 100644 src/licensedcode/_vendor/__init__.py create mode 100644 src/licensedcode/_vendor/attr/__init__.py create mode 100644 src/licensedcode/_vendor/attr/__init__.pyi create mode 100644 src/licensedcode/_vendor/attr/_cmp.py create mode 100644 src/licensedcode/_vendor/attr/_cmp.pyi create mode 100644 src/licensedcode/_vendor/attr/_compat.py create mode 100644 src/licensedcode/_vendor/attr/_config.py create mode 100644 src/licensedcode/_vendor/attr/_funcs.py create mode 100644 src/licensedcode/_vendor/attr/_make.py create mode 100644 src/licensedcode/_vendor/attr/_next_gen.py create mode 100644 src/licensedcode/_vendor/attr/_version_info.py create mode 100644 src/licensedcode/_vendor/attr/_version_info.pyi create mode 100644 src/licensedcode/_vendor/attr/converters.py create mode 100644 src/licensedcode/_vendor/attr/converters.pyi create mode 100644 src/licensedcode/_vendor/attr/exceptions.py create mode 100644 src/licensedcode/_vendor/attr/exceptions.pyi create mode 100644 src/licensedcode/_vendor/attr/filters.py create mode 100644 src/licensedcode/_vendor/attr/filters.pyi create mode 100644 src/licensedcode/_vendor/attr/py.typed create mode 100644 src/licensedcode/_vendor/attr/setters.py create mode 100644 src/licensedcode/_vendor/attr/setters.pyi create mode 100644 src/licensedcode/_vendor/attr/validators.py create mode 100644 src/licensedcode/_vendor/attr/validators.pyi create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/AUTHORS.rst create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/INSTALLER create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/LICENSE create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/METADATA create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/RECORD create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/REQUESTED create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/WHEEL create mode 100644 src/licensedcode/_vendor/attrs-21.4.0.dist-info/top_level.txt create mode 100644 src/licensedcode/_vendor/attrs.ABOUT create mode 100644 src/licensedcode/_vendor/attrs/__init__.py create mode 100644 src/licensedcode/_vendor/attrs/__init__.pyi create mode 100644 src/licensedcode/_vendor/attrs/converters.py create mode 100644 src/licensedcode/_vendor/attrs/exceptions.py create mode 100644 src/licensedcode/_vendor/attrs/filters.py create mode 100644 src/licensedcode/_vendor/attrs/py.typed create mode 100644 src/licensedcode/_vendor/attrs/setters.py create mode 100644 src/licensedcode/_vendor/attrs/validators.py create mode 100644 src/licensedcode/_vendor/mit.LICENSE create mode 100644 vendorize.toml diff --git a/requirements-dev.txt b/requirements-dev.txt index bd08a7b7c92..6b74f9fc1cb 100644 --- a/requirements-dev.txt +++ b/requirements-dev.txt @@ -29,3 +29,5 @@ tomli==2.0.1 tqdm==4.64.0 twine==4.0.1 typing_extensions==4.3.0 +vendorize==0.3.0 + diff --git a/setup-mini.cfg b/setup-mini.cfg index 3720428bc7c..af6e71f5ff6 100644 --- a/setup-mini.cfg +++ b/setup-mini.cfg @@ -130,6 +130,7 @@ testing = twine black isort + vendorize >= 0.3.0 docs = Sphinx >= 3.3.1 diff --git a/setup.cfg b/setup.cfg index ee7eea937b0..6840d1a6251 100644 --- a/setup.cfg +++ b/setup.cfg @@ -130,6 +130,7 @@ testing = twine black isort + vendorize >= 0.3.0 docs = Sphinx >= 3.3.1 diff --git a/src/licensedcode/_vendor/__init__.py b/src/licensedcode/_vendor/__init__.py new file mode 100644 index 00000000000..e69de29bb2d diff --git a/src/licensedcode/_vendor/attr/__init__.py b/src/licensedcode/_vendor/attr/__init__.py new file mode 100644 index 00000000000..f95c96dd579 --- /dev/null +++ b/src/licensedcode/_vendor/attr/__init__.py @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +import sys + +from functools import partial + +from . import converters, exceptions, filters, setters, validators +from ._cmp import cmp_using +from ._config import get_run_validators, set_run_validators +from ._funcs import asdict, assoc, astuple, evolve, has, resolve_types +from ._make import ( + NOTHING, + Attribute, + Factory, + attrib, + attrs, + fields, + fields_dict, + make_class, + validate, +) +from ._version_info import VersionInfo + + +__version__ = "21.4.0" +__version_info__ = VersionInfo._from_version_string(__version__) + +__title__ = "attrs" +__description__ = "Classes Without Boilerplate" +__url__ = "https://www.attrs.org/" +__uri__ = __url__ +__doc__ = __description__ + " <" + __uri__ + ">" + +__author__ = "Hynek Schlawack" +__email__ = "hs@ox.cx" + +__license__ = "MIT" +__copyright__ = "Copyright (c) 2015 Hynek Schlawack" + + +s = attributes = attrs +ib = attr = attrib +dataclass = partial(attrs, auto_attribs=True) # happy Easter ;) + +__all__ = [ + "Attribute", + "Factory", + "NOTHING", + "asdict", + "assoc", + "astuple", + "attr", + "attrib", + "attributes", + "attrs", + "cmp_using", + "converters", + "evolve", + "exceptions", + "fields", + "fields_dict", + "filters", + "get_run_validators", + "has", + "ib", + "make_class", + "resolve_types", + "s", + "set_run_validators", + "setters", + "validate", + "validators", +] + +if sys.version_info[:2] >= (3, 6): + from ._next_gen import define, field, frozen, mutable # noqa: F401 + + __all__.extend(("define", "field", "frozen", "mutable")) diff --git a/src/licensedcode/_vendor/attr/__init__.pyi b/src/licensedcode/_vendor/attr/__init__.pyi new file mode 100644 index 00000000000..c0a21265036 --- /dev/null +++ b/src/licensedcode/_vendor/attr/__init__.pyi @@ -0,0 +1,484 @@ +import sys + +from typing import ( + Any, + Callable, + Dict, + Generic, + List, + Mapping, + Optional, + Sequence, + Tuple, + Type, + TypeVar, + Union, + overload, +) + +# `import X as X` is required to make these public +from . import converters as converters +from . import exceptions as exceptions +from . import filters as filters +from . import setters as setters +from . import validators as validators +from ._version_info import VersionInfo + +__version__: str +__version_info__: VersionInfo +__title__: str +__description__: str +__url__: str +__uri__: str +__author__: str +__email__: str +__license__: str +__copyright__: str + +_T = TypeVar("_T") +_C = TypeVar("_C", bound=type) + +_EqOrderType = Union[bool, Callable[[Any], Any]] +_ValidatorType = Callable[[Any, Attribute[_T], _T], Any] +_ConverterType = Callable[[Any], Any] +_FilterType = Callable[[Attribute[_T], _T], bool] +_ReprType = Callable[[Any], str] +_ReprArgType = Union[bool, _ReprType] +_OnSetAttrType = Callable[[Any, Attribute[Any], Any], Any] +_OnSetAttrArgType = Union[ + _OnSetAttrType, List[_OnSetAttrType], setters._NoOpType +] +_FieldTransformer = Callable[ + [type, List[Attribute[Any]]], List[Attribute[Any]] +] +_CompareWithType = Callable[[Any, Any], bool] +# FIXME: in reality, if multiple validators are passed they must be in a list +# or tuple, but those are invariant and so would prevent subtypes of +# _ValidatorType from working when passed in a list or tuple. +_ValidatorArgType = Union[_ValidatorType[_T], Sequence[_ValidatorType[_T]]] + +# _make -- + +NOTHING: object + +# NOTE: Factory lies about its return type to make this possible: +# `x: List[int] # = Factory(list)` +# Work around mypy issue #4554 in the common case by using an overload. +if sys.version_info >= (3, 8): + from typing import Literal + @overload + def Factory(factory: Callable[[], _T]) -> _T: ... + @overload + def Factory( + factory: Callable[[Any], _T], + takes_self: Literal[True], + ) -> _T: ... + @overload + def Factory( + factory: Callable[[], _T], + takes_self: Literal[False], + ) -> _T: ... + +else: + @overload + def Factory(factory: Callable[[], _T]) -> _T: ... + @overload + def Factory( + factory: Union[Callable[[Any], _T], Callable[[], _T]], + takes_self: bool = ..., + ) -> _T: ... + +# Static type inference support via __dataclass_transform__ implemented as per: +# https://github.com/microsoft/pyright/blob/1.1.135/specs/dataclass_transforms.md +# This annotation must be applied to all overloads of "define" and "attrs" +# +# NOTE: This is a typing construct and does not exist at runtime. Extensions +# wrapping attrs decorators should declare a separate __dataclass_transform__ +# signature in the extension module using the specification linked above to +# provide pyright support. +def __dataclass_transform__( + *, + eq_default: bool = True, + order_default: bool = False, + kw_only_default: bool = False, + field_descriptors: Tuple[Union[type, Callable[..., Any]], ...] = (()), +) -> Callable[[_T], _T]: ... + +class Attribute(Generic[_T]): + name: str + default: Optional[_T] + validator: Optional[_ValidatorType[_T]] + repr: _ReprArgType + cmp: _EqOrderType + eq: _EqOrderType + order: _EqOrderType + hash: Optional[bool] + init: bool + converter: Optional[_ConverterType] + metadata: Dict[Any, Any] + type: Optional[Type[_T]] + kw_only: bool + on_setattr: _OnSetAttrType + def evolve(self, **changes: Any) -> "Attribute[Any]": ... + +# NOTE: We had several choices for the annotation to use for type arg: +# 1) Type[_T] +# - Pros: Handles simple cases correctly +# - Cons: Might produce less informative errors in the case of conflicting +# TypeVars e.g. `attr.ib(default='bad', type=int)` +# 2) Callable[..., _T] +# - Pros: Better error messages than #1 for conflicting TypeVars +# - Cons: Terrible error messages for validator checks. +# e.g. attr.ib(type=int, validator=validate_str) +# -> error: Cannot infer function type argument +# 3) type (and do all of the work in the mypy plugin) +# - Pros: Simple here, and we could customize the plugin with our own errors. +# - Cons: Would need to write mypy plugin code to handle all the cases. +# We chose option #1. + +# `attr` lies about its return type to make the following possible: +# attr() -> Any +# attr(8) -> int +# attr(validator=) -> Whatever the callable expects. +# This makes this type of assignments possible: +# x: int = attr(8) +# +# This form catches explicit None or no default but with no other arguments +# returns Any. +@overload +def attrib( + default: None = ..., + validator: None = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: None = ..., + converter: None = ..., + factory: None = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... + +# This form catches an explicit None or no default and infers the type from the +# other arguments. +@overload +def attrib( + default: None = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: Optional[Type[_T]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form catches an explicit default argument. +@overload +def attrib( + default: _T, + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: Optional[Type[_T]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form covers type=non-Type: e.g. forward references (str), Any +@overload +def attrib( + default: Optional[_T] = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: object = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... +@overload +def field( + *, + default: None = ..., + validator: None = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: None = ..., + factory: None = ..., + kw_only: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... + +# This form catches an explicit None or no default and infers the type from the +# other arguments. +@overload +def field( + *, + default: None = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form catches an explicit default argument. +@overload +def field( + *, + default: _T, + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form covers type=non-Type: e.g. forward references (str), Any +@overload +def field( + *, + default: Optional[_T] = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... +@overload +@__dataclass_transform__(order_default=True, field_descriptors=(attrib, field)) +def attrs( + maybe_cls: _C, + these: Optional[Dict[str, Any]] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + auto_detect: bool = ..., + collect_by_mro: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> _C: ... +@overload +@__dataclass_transform__(order_default=True, field_descriptors=(attrib, field)) +def attrs( + maybe_cls: None = ..., + these: Optional[Dict[str, Any]] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + auto_detect: bool = ..., + collect_by_mro: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> Callable[[_C], _C]: ... +@overload +@__dataclass_transform__(field_descriptors=(attrib, field)) +def define( + maybe_cls: _C, + *, + these: Optional[Dict[str, Any]] = ..., + repr: bool = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + auto_detect: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> _C: ... +@overload +@__dataclass_transform__(field_descriptors=(attrib, field)) +def define( + maybe_cls: None = ..., + *, + these: Optional[Dict[str, Any]] = ..., + repr: bool = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + auto_detect: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> Callable[[_C], _C]: ... + +mutable = define +frozen = define # they differ only in their defaults + +# TODO: add support for returning NamedTuple from the mypy plugin +class _Fields(Tuple[Attribute[Any], ...]): + def __getattr__(self, name: str) -> Attribute[Any]: ... + +def fields(cls: type) -> _Fields: ... +def fields_dict(cls: type) -> Dict[str, Attribute[Any]]: ... +def validate(inst: Any) -> None: ... +def resolve_types( + cls: _C, + globalns: Optional[Dict[str, Any]] = ..., + localns: Optional[Dict[str, Any]] = ..., + attribs: Optional[List[Attribute[Any]]] = ..., +) -> _C: ... + +# TODO: add support for returning a proper attrs class from the mypy plugin +# we use Any instead of _CountingAttr so that e.g. `make_class('Foo', +# [attr.ib()])` is valid +def make_class( + name: str, + attrs: Union[List[str], Tuple[str, ...], Dict[str, Any]], + bases: Tuple[type, ...] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + collect_by_mro: bool = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., +) -> type: ... + +# _funcs -- + +# TODO: add support for returning TypedDict from the mypy plugin +# FIXME: asdict/astuple do not honor their factory args. Waiting on one of +# these: +# https://github.com/python/mypy/issues/4236 +# https://github.com/python/typing/issues/253 +# XXX: remember to fix attrs.asdict/astuple too! +def asdict( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + dict_factory: Type[Mapping[Any, Any]] = ..., + retain_collection_types: bool = ..., + value_serializer: Optional[ + Callable[[type, Attribute[Any], Any], Any] + ] = ..., + tuple_keys: Optional[bool] = ..., +) -> Dict[str, Any]: ... + +# TODO: add support for returning NamedTuple from the mypy plugin +def astuple( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + tuple_factory: Type[Sequence[Any]] = ..., + retain_collection_types: bool = ..., +) -> Tuple[Any, ...]: ... +def has(cls: type) -> bool: ... +def assoc(inst: _T, **changes: Any) -> _T: ... +def evolve(inst: _T, **changes: Any) -> _T: ... + +# _config -- + +def set_run_validators(run: bool) -> None: ... +def get_run_validators() -> bool: ... + +# aliases -- + +s = attributes = attrs +ib = attr = attrib +dataclass = attrs # Technically, partial(attrs, auto_attribs=True) ;) diff --git a/src/licensedcode/_vendor/attr/_cmp.py b/src/licensedcode/_vendor/attr/_cmp.py new file mode 100644 index 00000000000..6cffa4dbabd --- /dev/null +++ b/src/licensedcode/_vendor/attr/_cmp.py @@ -0,0 +1,154 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +import functools + +from ._compat import new_class +from ._make import _make_ne + + +_operation_names = {"eq": "==", "lt": "<", "le": "<=", "gt": ">", "ge": ">="} + + +def cmp_using( + eq=None, + lt=None, + le=None, + gt=None, + ge=None, + require_same_type=True, + class_name="Comparable", +): + """ + Create a class that can be passed into `attr.ib`'s ``eq``, ``order``, and + ``cmp`` arguments to customize field comparison. + + The resulting class will have a full set of ordering methods if + at least one of ``{lt, le, gt, ge}`` and ``eq`` are provided. + + :param Optional[callable] eq: `callable` used to evaluate equality + of two objects. + :param Optional[callable] lt: `callable` used to evaluate whether + one object is less than another object. + :param Optional[callable] le: `callable` used to evaluate whether + one object is less than or equal to another object. + :param Optional[callable] gt: `callable` used to evaluate whether + one object is greater than another object. + :param Optional[callable] ge: `callable` used to evaluate whether + one object is greater than or equal to another object. + + :param bool require_same_type: When `True`, equality and ordering methods + will return `NotImplemented` if objects are not of the same type. + + :param Optional[str] class_name: Name of class. Defaults to 'Comparable'. + + See `comparison` for more details. + + .. versionadded:: 21.1.0 + """ + + body = { + "__slots__": ["value"], + "__init__": _make_init(), + "_requirements": [], + "_is_comparable_to": _is_comparable_to, + } + + # Add operations. + num_order_functions = 0 + has_eq_function = False + + if eq is not None: + has_eq_function = True + body["__eq__"] = _make_operator("eq", eq) + body["__ne__"] = _make_ne() + + if lt is not None: + num_order_functions += 1 + body["__lt__"] = _make_operator("lt", lt) + + if le is not None: + num_order_functions += 1 + body["__le__"] = _make_operator("le", le) + + if gt is not None: + num_order_functions += 1 + body["__gt__"] = _make_operator("gt", gt) + + if ge is not None: + num_order_functions += 1 + body["__ge__"] = _make_operator("ge", ge) + + type_ = new_class(class_name, (object,), {}, lambda ns: ns.update(body)) + + # Add same type requirement. + if require_same_type: + type_._requirements.append(_check_same_type) + + # Add total ordering if at least one operation was defined. + if 0 < num_order_functions < 4: + if not has_eq_function: + # functools.total_ordering requires __eq__ to be defined, + # so raise early error here to keep a nice stack. + raise ValueError( + "eq must be define is order to complete ordering from " + "lt, le, gt, ge." + ) + type_ = functools.total_ordering(type_) + + return type_ + + +def _make_init(): + """ + Create __init__ method. + """ + + def __init__(self, value): + """ + Initialize object with *value*. + """ + self.value = value + + return __init__ + + +def _make_operator(name, func): + """ + Create operator method. + """ + + def method(self, other): + if not self._is_comparable_to(other): + return NotImplemented + + result = func(self.value, other.value) + if result is NotImplemented: + return NotImplemented + + return result + + method.__name__ = "__%s__" % (name,) + method.__doc__ = "Return a %s b. Computed by attrs." % ( + _operation_names[name], + ) + + return method + + +def _is_comparable_to(self, other): + """ + Check whether `other` is comparable to `self`. + """ + for func in self._requirements: + if not func(self, other): + return False + return True + + +def _check_same_type(self, other): + """ + Return True if *self* and *other* are of the same type, False otherwise. + """ + return other.value.__class__ is self.value.__class__ diff --git a/src/licensedcode/_vendor/attr/_cmp.pyi b/src/licensedcode/_vendor/attr/_cmp.pyi new file mode 100644 index 00000000000..e71aaff7a19 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_cmp.pyi @@ -0,0 +1,13 @@ +from typing import Type + +from . import _CompareWithType + +def cmp_using( + eq: Optional[_CompareWithType], + lt: Optional[_CompareWithType], + le: Optional[_CompareWithType], + gt: Optional[_CompareWithType], + ge: Optional[_CompareWithType], + require_same_type: bool, + class_name: str, +) -> Type: ... diff --git a/src/licensedcode/_vendor/attr/_compat.py b/src/licensedcode/_vendor/attr/_compat.py new file mode 100644 index 00000000000..dc0cb02b643 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_compat.py @@ -0,0 +1,261 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +import platform +import sys +import threading +import types +import warnings + + +PY2 = sys.version_info[0] == 2 +PYPY = platform.python_implementation() == "PyPy" +PY36 = sys.version_info[:2] >= (3, 6) +HAS_F_STRINGS = PY36 +PY310 = sys.version_info[:2] >= (3, 10) + + +if PYPY or PY36: + ordered_dict = dict +else: + from collections import OrderedDict + + ordered_dict = OrderedDict + + +if PY2: + from collections import Mapping, Sequence + + from UserDict import IterableUserDict + + # We 'bundle' isclass instead of using inspect as importing inspect is + # fairly expensive (order of 10-15 ms for a modern machine in 2016) + def isclass(klass): + return isinstance(klass, (type, types.ClassType)) + + def new_class(name, bases, kwds, exec_body): + """ + A minimal stub of types.new_class that we need for make_class. + """ + ns = {} + exec_body(ns) + + return type(name, bases, ns) + + # TYPE is used in exceptions, repr(int) is different on Python 2 and 3. + TYPE = "type" + + def iteritems(d): + return d.iteritems() + + # Python 2 is bereft of a read-only dict proxy, so we make one! + class ReadOnlyDict(IterableUserDict): + """ + Best-effort read-only dict wrapper. + """ + + def __setitem__(self, key, val): + # We gently pretend we're a Python 3 mappingproxy. + raise TypeError( + "'mappingproxy' object does not support item assignment" + ) + + def update(self, _): + # We gently pretend we're a Python 3 mappingproxy. + raise AttributeError( + "'mappingproxy' object has no attribute 'update'" + ) + + def __delitem__(self, _): + # We gently pretend we're a Python 3 mappingproxy. + raise TypeError( + "'mappingproxy' object does not support item deletion" + ) + + def clear(self): + # We gently pretend we're a Python 3 mappingproxy. + raise AttributeError( + "'mappingproxy' object has no attribute 'clear'" + ) + + def pop(self, key, default=None): + # We gently pretend we're a Python 3 mappingproxy. + raise AttributeError( + "'mappingproxy' object has no attribute 'pop'" + ) + + def popitem(self): + # We gently pretend we're a Python 3 mappingproxy. + raise AttributeError( + "'mappingproxy' object has no attribute 'popitem'" + ) + + def setdefault(self, key, default=None): + # We gently pretend we're a Python 3 mappingproxy. + raise AttributeError( + "'mappingproxy' object has no attribute 'setdefault'" + ) + + def __repr__(self): + # Override to be identical to the Python 3 version. + return "mappingproxy(" + repr(self.data) + ")" + + def metadata_proxy(d): + res = ReadOnlyDict() + res.data.update(d) # We blocked update, so we have to do it like this. + return res + + def just_warn(*args, **kw): # pragma: no cover + """ + We only warn on Python 3 because we are not aware of any concrete + consequences of not setting the cell on Python 2. + """ + +else: # Python 3 and later. + from collections.abc import Mapping, Sequence # noqa + + def just_warn(*args, **kw): + """ + We only warn on Python 3 because we are not aware of any concrete + consequences of not setting the cell on Python 2. + """ + warnings.warn( + "Running interpreter doesn't sufficiently support code object " + "introspection. Some features like bare super() or accessing " + "__class__ will not work with slotted classes.", + RuntimeWarning, + stacklevel=2, + ) + + def isclass(klass): + return isinstance(klass, type) + + TYPE = "class" + + def iteritems(d): + return d.items() + + new_class = types.new_class + + def metadata_proxy(d): + return types.MappingProxyType(dict(d)) + + +def make_set_closure_cell(): + """Return a function of two arguments (cell, value) which sets + the value stored in the closure cell `cell` to `value`. + """ + # pypy makes this easy. (It also supports the logic below, but + # why not do the easy/fast thing?) + if PYPY: + + def set_closure_cell(cell, value): + cell.__setstate__((value,)) + + return set_closure_cell + + # Otherwise gotta do it the hard way. + + # Create a function that will set its first cellvar to `value`. + def set_first_cellvar_to(value): + x = value + return + + # This function will be eliminated as dead code, but + # not before its reference to `x` forces `x` to be + # represented as a closure cell rather than a local. + def force_x_to_be_a_cell(): # pragma: no cover + return x + + try: + # Extract the code object and make sure our assumptions about + # the closure behavior are correct. + if PY2: + co = set_first_cellvar_to.func_code + else: + co = set_first_cellvar_to.__code__ + if co.co_cellvars != ("x",) or co.co_freevars != (): + raise AssertionError # pragma: no cover + + # Convert this code object to a code object that sets the + # function's first _freevar_ (not cellvar) to the argument. + if sys.version_info >= (3, 8): + # CPython 3.8+ has an incompatible CodeType signature + # (added a posonlyargcount argument) but also added + # CodeType.replace() to do this without counting parameters. + set_first_freevar_code = co.replace( + co_cellvars=co.co_freevars, co_freevars=co.co_cellvars + ) + else: + args = [co.co_argcount] + if not PY2: + args.append(co.co_kwonlyargcount) + args.extend( + [ + co.co_nlocals, + co.co_stacksize, + co.co_flags, + co.co_code, + co.co_consts, + co.co_names, + co.co_varnames, + co.co_filename, + co.co_name, + co.co_firstlineno, + co.co_lnotab, + # These two arguments are reversed: + co.co_cellvars, + co.co_freevars, + ] + ) + set_first_freevar_code = types.CodeType(*args) + + def set_closure_cell(cell, value): + # Create a function using the set_first_freevar_code, + # whose first closure cell is `cell`. Calling it will + # change the value of that cell. + setter = types.FunctionType( + set_first_freevar_code, {}, "setter", (), (cell,) + ) + # And call it to set the cell. + setter(value) + + # Make sure it works on this interpreter: + def make_func_with_cell(): + x = None + + def func(): + return x # pragma: no cover + + return func + + if PY2: + cell = make_func_with_cell().func_closure[0] + else: + cell = make_func_with_cell().__closure__[0] + set_closure_cell(cell, 100) + if cell.cell_contents != 100: + raise AssertionError # pragma: no cover + + except Exception: + return just_warn + else: + return set_closure_cell + + +set_closure_cell = make_set_closure_cell() + +# Thread-local global to track attrs instances which are already being repr'd. +# This is needed because there is no other (thread-safe) way to pass info +# about the instances that are already being repr'd through the call stack +# in order to ensure we don't perform infinite recursion. +# +# For instance, if an instance contains a dict which contains that instance, +# we need to know that we're already repr'ing the outside instance from within +# the dict's repr() call. +# +# This lives here rather than in _make.py so that the functions in _make.py +# don't have a direct reference to the thread-local in their globals dict. +# If they have such a reference, it breaks cloudpickle. +repr_context = threading.local() diff --git a/src/licensedcode/_vendor/attr/_config.py b/src/licensedcode/_vendor/attr/_config.py new file mode 100644 index 00000000000..fc9be29d008 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_config.py @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + + +__all__ = ["set_run_validators", "get_run_validators"] + +_run_validators = True + + +def set_run_validators(run): + """ + Set whether or not validators are run. By default, they are run. + + .. deprecated:: 21.3.0 It will not be removed, but it also will not be + moved to new ``attrs`` namespace. Use `attrs.validators.set_disabled()` + instead. + """ + if not isinstance(run, bool): + raise TypeError("'run' must be bool.") + global _run_validators + _run_validators = run + + +def get_run_validators(): + """ + Return whether or not validators are run. + + .. deprecated:: 21.3.0 It will not be removed, but it also will not be + moved to new ``attrs`` namespace. Use `attrs.validators.get_disabled()` + instead. + """ + return _run_validators diff --git a/src/licensedcode/_vendor/attr/_funcs.py b/src/licensedcode/_vendor/attr/_funcs.py new file mode 100644 index 00000000000..4c90085a401 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_funcs.py @@ -0,0 +1,422 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +import copy + +from ._compat import iteritems +from ._make import NOTHING, _obj_setattr, fields +from .exceptions import AttrsAttributeNotFoundError + + +def asdict( + inst, + recurse=True, + filter=None, + dict_factory=dict, + retain_collection_types=False, + value_serializer=None, +): + """ + Return the ``attrs`` attribute values of *inst* as a dict. + + Optionally recurse into other ``attrs``-decorated classes. + + :param inst: Instance of an ``attrs``-decorated class. + :param bool recurse: Recurse into classes that are also + ``attrs``-decorated. + :param callable filter: A callable whose return code determines whether an + attribute or element is included (``True``) or dropped (``False``). Is + called with the `attrs.Attribute` as the first argument and the + value as the second argument. + :param callable dict_factory: A callable to produce dictionaries from. For + example, to produce ordered dictionaries instead of normal Python + dictionaries, pass in ``collections.OrderedDict``. + :param bool retain_collection_types: Do not convert to ``list`` when + encountering an attribute whose type is ``tuple`` or ``set``. Only + meaningful if ``recurse`` is ``True``. + :param Optional[callable] value_serializer: A hook that is called for every + attribute or dict key/value. It receives the current instance, field + and value and must return the (updated) value. The hook is run *after* + the optional *filter* has been applied. + + :rtype: return type of *dict_factory* + + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 16.0.0 *dict_factory* + .. versionadded:: 16.1.0 *retain_collection_types* + .. versionadded:: 20.3.0 *value_serializer* + .. versionadded:: 21.3.0 If a dict has a collection for a key, it is + serialized as a tuple. + """ + attrs = fields(inst.__class__) + rv = dict_factory() + for a in attrs: + v = getattr(inst, a.name) + if filter is not None and not filter(a, v): + continue + + if value_serializer is not None: + v = value_serializer(inst, a, v) + + if recurse is True: + if has(v.__class__): + rv[a.name] = asdict( + v, + recurse=True, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + elif isinstance(v, (tuple, list, set, frozenset)): + cf = v.__class__ if retain_collection_types is True else list + rv[a.name] = cf( + [ + _asdict_anything( + i, + is_key=False, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + for i in v + ] + ) + elif isinstance(v, dict): + df = dict_factory + rv[a.name] = df( + ( + _asdict_anything( + kk, + is_key=True, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + _asdict_anything( + vv, + is_key=False, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + ) + for kk, vv in iteritems(v) + ) + else: + rv[a.name] = v + else: + rv[a.name] = v + return rv + + +def _asdict_anything( + val, + is_key, + filter, + dict_factory, + retain_collection_types, + value_serializer, +): + """ + ``asdict`` only works on attrs instances, this works on anything. + """ + if getattr(val.__class__, "__attrs_attrs__", None) is not None: + # Attrs class. + rv = asdict( + val, + recurse=True, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + elif isinstance(val, (tuple, list, set, frozenset)): + if retain_collection_types is True: + cf = val.__class__ + elif is_key: + cf = tuple + else: + cf = list + + rv = cf( + [ + _asdict_anything( + i, + is_key=False, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + for i in val + ] + ) + elif isinstance(val, dict): + df = dict_factory + rv = df( + ( + _asdict_anything( + kk, + is_key=True, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + _asdict_anything( + vv, + is_key=False, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + ) + for kk, vv in iteritems(val) + ) + else: + rv = val + if value_serializer is not None: + rv = value_serializer(None, None, rv) + + return rv + + +def astuple( + inst, + recurse=True, + filter=None, + tuple_factory=tuple, + retain_collection_types=False, +): + """ + Return the ``attrs`` attribute values of *inst* as a tuple. + + Optionally recurse into other ``attrs``-decorated classes. + + :param inst: Instance of an ``attrs``-decorated class. + :param bool recurse: Recurse into classes that are also + ``attrs``-decorated. + :param callable filter: A callable whose return code determines whether an + attribute or element is included (``True``) or dropped (``False``). Is + called with the `attrs.Attribute` as the first argument and the + value as the second argument. + :param callable tuple_factory: A callable to produce tuples from. For + example, to produce lists instead of tuples. + :param bool retain_collection_types: Do not convert to ``list`` + or ``dict`` when encountering an attribute which type is + ``tuple``, ``dict`` or ``set``. Only meaningful if ``recurse`` is + ``True``. + + :rtype: return type of *tuple_factory* + + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 16.2.0 + """ + attrs = fields(inst.__class__) + rv = [] + retain = retain_collection_types # Very long. :/ + for a in attrs: + v = getattr(inst, a.name) + if filter is not None and not filter(a, v): + continue + if recurse is True: + if has(v.__class__): + rv.append( + astuple( + v, + recurse=True, + filter=filter, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + ) + elif isinstance(v, (tuple, list, set, frozenset)): + cf = v.__class__ if retain is True else list + rv.append( + cf( + [ + astuple( + j, + recurse=True, + filter=filter, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(j.__class__) + else j + for j in v + ] + ) + ) + elif isinstance(v, dict): + df = v.__class__ if retain is True else dict + rv.append( + df( + ( + astuple( + kk, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(kk.__class__) + else kk, + astuple( + vv, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(vv.__class__) + else vv, + ) + for kk, vv in iteritems(v) + ) + ) + else: + rv.append(v) + else: + rv.append(v) + + return rv if tuple_factory is list else tuple_factory(rv) + + +def has(cls): + """ + Check whether *cls* is a class with ``attrs`` attributes. + + :param type cls: Class to introspect. + :raise TypeError: If *cls* is not a class. + + :rtype: bool + """ + return getattr(cls, "__attrs_attrs__", None) is not None + + +def assoc(inst, **changes): + """ + Copy *inst* and apply *changes*. + + :param inst: Instance of a class with ``attrs`` attributes. + :param changes: Keyword changes in the new copy. + + :return: A copy of inst with *changes* incorporated. + + :raise attr.exceptions.AttrsAttributeNotFoundError: If *attr_name* couldn't + be found on *cls*. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. deprecated:: 17.1.0 + Use `attrs.evolve` instead if you can. + This function will not be removed du to the slightly different approach + compared to `attrs.evolve`. + """ + import warnings + + warnings.warn( + "assoc is deprecated and will be removed after 2018/01.", + DeprecationWarning, + stacklevel=2, + ) + new = copy.copy(inst) + attrs = fields(inst.__class__) + for k, v in iteritems(changes): + a = getattr(attrs, k, NOTHING) + if a is NOTHING: + raise AttrsAttributeNotFoundError( + "{k} is not an attrs attribute on {cl}.".format( + k=k, cl=new.__class__ + ) + ) + _obj_setattr(new, k, v) + return new + + +def evolve(inst, **changes): + """ + Create a new instance, based on *inst* with *changes* applied. + + :param inst: Instance of a class with ``attrs`` attributes. + :param changes: Keyword changes in the new copy. + + :return: A copy of inst with *changes* incorporated. + + :raise TypeError: If *attr_name* couldn't be found in the class + ``__init__``. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 17.1.0 + """ + cls = inst.__class__ + attrs = fields(cls) + for a in attrs: + if not a.init: + continue + attr_name = a.name # To deal with private attributes. + init_name = attr_name if attr_name[0] != "_" else attr_name[1:] + if init_name not in changes: + changes[init_name] = getattr(inst, attr_name) + + return cls(**changes) + + +def resolve_types(cls, globalns=None, localns=None, attribs=None): + """ + Resolve any strings and forward annotations in type annotations. + + This is only required if you need concrete types in `Attribute`'s *type* + field. In other words, you don't need to resolve your types if you only + use them for static type checking. + + With no arguments, names will be looked up in the module in which the class + was created. If this is not what you want, e.g. if the name only exists + inside a method, you may pass *globalns* or *localns* to specify other + dictionaries in which to look up these names. See the docs of + `typing.get_type_hints` for more details. + + :param type cls: Class to resolve. + :param Optional[dict] globalns: Dictionary containing global variables. + :param Optional[dict] localns: Dictionary containing local variables. + :param Optional[list] attribs: List of attribs for the given class. + This is necessary when calling from inside a ``field_transformer`` + since *cls* is not an ``attrs`` class yet. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class and you didn't pass any attribs. + :raise NameError: If types cannot be resolved because of missing variables. + + :returns: *cls* so you can use this function also as a class decorator. + Please note that you have to apply it **after** `attrs.define`. That + means the decorator has to come in the line **before** `attrs.define`. + + .. versionadded:: 20.1.0 + .. versionadded:: 21.1.0 *attribs* + + """ + # Since calling get_type_hints is expensive we cache whether we've + # done it already. + if getattr(cls, "__attrs_types_resolved__", None) != cls: + import typing + + hints = typing.get_type_hints(cls, globalns=globalns, localns=localns) + for field in fields(cls) if attribs is None else attribs: + if field.name in hints: + # Since fields have been frozen we must work around it. + _obj_setattr(field, "type", hints[field.name]) + # We store the class we resolved so that subclasses know they haven't + # been resolved. + cls.__attrs_types_resolved__ = cls + + # Return the class so you can use it as a decorator too. + return cls diff --git a/src/licensedcode/_vendor/attr/_make.py b/src/licensedcode/_vendor/attr/_make.py new file mode 100644 index 00000000000..d46f8a3e7a4 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_make.py @@ -0,0 +1,3173 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +import copy +import inspect +import linecache +import sys +import warnings + +from operator import itemgetter + +# We need to import _compat itself in addition to the _compat members to avoid +# having the thread-local in the globals here. +from . import _compat, _config, setters +from ._compat import ( + HAS_F_STRINGS, + PY2, + PY310, + PYPY, + isclass, + iteritems, + metadata_proxy, + new_class, + ordered_dict, + set_closure_cell, +) +from .exceptions import ( + DefaultAlreadySetError, + FrozenInstanceError, + NotAnAttrsClassError, + PythonTooOldError, + UnannotatedAttributeError, +) + + +if not PY2: + import typing + + +# This is used at least twice, so cache it here. +_obj_setattr = object.__setattr__ +_init_converter_pat = "__attr_converter_%s" +_init_factory_pat = "__attr_factory_{}" +_tuple_property_pat = ( + " {attr_name} = _attrs_property(_attrs_itemgetter({index}))" +) +_classvar_prefixes = ( + "typing.ClassVar", + "t.ClassVar", + "ClassVar", + "typing_extensions.ClassVar", +) +# we don't use a double-underscore prefix because that triggers +# name mangling when trying to create a slot for the field +# (when slots=True) +_hash_cache_field = "_attrs_cached_hash" + +_empty_metadata_singleton = metadata_proxy({}) + +# Unique object for unequivocal getattr() defaults. +_sentinel = object() + +_ng_default_on_setattr = setters.pipe(setters.convert, setters.validate) + + +class _Nothing(object): + """ + Sentinel class to indicate the lack of a value when ``None`` is ambiguous. + + ``_Nothing`` is a singleton. There is only ever one of it. + + .. versionchanged:: 21.1.0 ``bool(NOTHING)`` is now False. + """ + + _singleton = None + + def __new__(cls): + if _Nothing._singleton is None: + _Nothing._singleton = super(_Nothing, cls).__new__(cls) + return _Nothing._singleton + + def __repr__(self): + return "NOTHING" + + def __bool__(self): + return False + + def __len__(self): + return 0 # __bool__ for Python 2 + + +NOTHING = _Nothing() +""" +Sentinel to indicate the lack of a value when ``None`` is ambiguous. +""" + + +class _CacheHashWrapper(int): + """ + An integer subclass that pickles / copies as None + + This is used for non-slots classes with ``cache_hash=True``, to avoid + serializing a potentially (even likely) invalid hash value. Since ``None`` + is the default value for uncalculated hashes, whenever this is copied, + the copy's value for the hash should automatically reset. + + See GH #613 for more details. + """ + + if PY2: + # For some reason `type(None)` isn't callable in Python 2, but we don't + # actually need a constructor for None objects, we just need any + # available function that returns None. + def __reduce__(self, _none_constructor=getattr, _args=(0, "", None)): + return _none_constructor, _args + + else: + + def __reduce__(self, _none_constructor=type(None), _args=()): + return _none_constructor, _args + + +def attrib( + default=NOTHING, + validator=None, + repr=True, + cmp=None, + hash=None, + init=True, + metadata=None, + type=None, + converter=None, + factory=None, + kw_only=False, + eq=None, + order=None, + on_setattr=None, +): + """ + Create a new attribute on a class. + + .. warning:: + + Does *not* do anything unless the class is also decorated with + `attr.s`! + + :param default: A value that is used if an ``attrs``-generated ``__init__`` + is used and no value is passed while instantiating or the attribute is + excluded using ``init=False``. + + If the value is an instance of `attrs.Factory`, its callable will be + used to construct a new value (useful for mutable data types like lists + or dicts). + + If a default is not set (or set manually to `attrs.NOTHING`), a value + *must* be supplied when instantiating; otherwise a `TypeError` + will be raised. + + The default can also be set using decorator notation as shown below. + + :type default: Any value + + :param callable factory: Syntactic sugar for + ``default=attr.Factory(factory)``. + + :param validator: `callable` that is called by ``attrs``-generated + ``__init__`` methods after the instance has been initialized. They + receive the initialized instance, the :func:`~attrs.Attribute`, and the + passed value. + + The return value is *not* inspected so the validator has to throw an + exception itself. + + If a `list` is passed, its items are treated as validators and must + all pass. + + Validators can be globally disabled and re-enabled using + `get_run_validators`. + + The validator can also be set using decorator notation as shown below. + + :type validator: `callable` or a `list` of `callable`\\ s. + + :param repr: Include this attribute in the generated ``__repr__`` + method. If ``True``, include the attribute; if ``False``, omit it. By + default, the built-in ``repr()`` function is used. To override how the + attribute value is formatted, pass a ``callable`` that takes a single + value and returns a string. Note that the resulting string is used + as-is, i.e. it will be used directly *instead* of calling ``repr()`` + (the default). + :type repr: a `bool` or a `callable` to use a custom function. + + :param eq: If ``True`` (default), include this attribute in the + generated ``__eq__`` and ``__ne__`` methods that check two instances + for equality. To override how the attribute value is compared, + pass a ``callable`` that takes a single value and returns the value + to be compared. + :type eq: a `bool` or a `callable`. + + :param order: If ``True`` (default), include this attributes in the + generated ``__lt__``, ``__le__``, ``__gt__`` and ``__ge__`` methods. + To override how the attribute value is ordered, + pass a ``callable`` that takes a single value and returns the value + to be ordered. + :type order: a `bool` or a `callable`. + + :param cmp: Setting *cmp* is equivalent to setting *eq* and *order* to the + same value. Must not be mixed with *eq* or *order*. + :type cmp: a `bool` or a `callable`. + + :param Optional[bool] hash: Include this attribute in the generated + ``__hash__`` method. If ``None`` (default), mirror *eq*'s value. This + is the correct behavior according the Python spec. Setting this value + to anything else than ``None`` is *discouraged*. + :param bool init: Include this attribute in the generated ``__init__`` + method. It is possible to set this to ``False`` and set a default + value. In that case this attributed is unconditionally initialized + with the specified default value or factory. + :param callable converter: `callable` that is called by + ``attrs``-generated ``__init__`` methods to convert attribute's value + to the desired format. It is given the passed-in value, and the + returned value will be used as the new value of the attribute. The + value is converted before being passed to the validator, if any. + :param metadata: An arbitrary mapping, to be used by third-party + components. See `extending_metadata`. + :param type: The type of the attribute. In Python 3.6 or greater, the + preferred method to specify the type is using a variable annotation + (see `PEP 526 `_). + This argument is provided for backward compatibility. + Regardless of the approach used, the type will be stored on + ``Attribute.type``. + + Please note that ``attrs`` doesn't do anything with this metadata by + itself. You can use it as part of your own code or for + `static type checking `. + :param kw_only: Make this attribute keyword-only (Python 3+) + in the generated ``__init__`` (if ``init`` is ``False``, this + parameter is ignored). + :param on_setattr: Allows to overwrite the *on_setattr* setting from + `attr.s`. If left `None`, the *on_setattr* value from `attr.s` is used. + Set to `attrs.setters.NO_OP` to run **no** `setattr` hooks for this + attribute -- regardless of the setting in `attr.s`. + :type on_setattr: `callable`, or a list of callables, or `None`, or + `attrs.setters.NO_OP` + + .. versionadded:: 15.2.0 *convert* + .. versionadded:: 16.3.0 *metadata* + .. versionchanged:: 17.1.0 *validator* can be a ``list`` now. + .. versionchanged:: 17.1.0 + *hash* is ``None`` and therefore mirrors *eq* by default. + .. versionadded:: 17.3.0 *type* + .. deprecated:: 17.4.0 *convert* + .. versionadded:: 17.4.0 *converter* as a replacement for the deprecated + *convert* to achieve consistency with other noun-based arguments. + .. versionadded:: 18.1.0 + ``factory=f`` is syntactic sugar for ``default=attr.Factory(f)``. + .. versionadded:: 18.2.0 *kw_only* + .. versionchanged:: 19.2.0 *convert* keyword argument removed. + .. versionchanged:: 19.2.0 *repr* also accepts a custom callable. + .. deprecated:: 19.2.0 *cmp* Removal on or after 2021-06-01. + .. versionadded:: 19.2.0 *eq* and *order* + .. versionadded:: 20.1.0 *on_setattr* + .. versionchanged:: 20.3.0 *kw_only* backported to Python 2 + .. versionchanged:: 21.1.0 + *eq*, *order*, and *cmp* also accept a custom callable + .. versionchanged:: 21.1.0 *cmp* undeprecated + """ + eq, eq_key, order, order_key = _determine_attrib_eq_order( + cmp, eq, order, True + ) + + if hash is not None and hash is not True and hash is not False: + raise TypeError( + "Invalid value for hash. Must be True, False, or None." + ) + + if factory is not None: + if default is not NOTHING: + raise ValueError( + "The `default` and `factory` arguments are mutually " + "exclusive." + ) + if not callable(factory): + raise ValueError("The `factory` argument must be a callable.") + default = Factory(factory) + + if metadata is None: + metadata = {} + + # Apply syntactic sugar by auto-wrapping. + if isinstance(on_setattr, (list, tuple)): + on_setattr = setters.pipe(*on_setattr) + + if validator and isinstance(validator, (list, tuple)): + validator = and_(*validator) + + if converter and isinstance(converter, (list, tuple)): + converter = pipe(*converter) + + return _CountingAttr( + default=default, + validator=validator, + repr=repr, + cmp=None, + hash=hash, + init=init, + converter=converter, + metadata=metadata, + type=type, + kw_only=kw_only, + eq=eq, + eq_key=eq_key, + order=order, + order_key=order_key, + on_setattr=on_setattr, + ) + + +def _compile_and_eval(script, globs, locs=None, filename=""): + """ + "Exec" the script with the given global (globs) and local (locs) variables. + """ + bytecode = compile(script, filename, "exec") + eval(bytecode, globs, locs) + + +def _make_method(name, script, filename, globs=None): + """ + Create the method with the script given and return the method object. + """ + locs = {} + if globs is None: + globs = {} + + # In order of debuggers like PDB being able to step through the code, + # we add a fake linecache entry. + count = 1 + base_filename = filename + while True: + linecache_tuple = ( + len(script), + None, + script.splitlines(True), + filename, + ) + old_val = linecache.cache.setdefault(filename, linecache_tuple) + if old_val == linecache_tuple: + break + else: + filename = "{}-{}>".format(base_filename[:-1], count) + count += 1 + + _compile_and_eval(script, globs, locs, filename) + + return locs[name] + + +def _make_attr_tuple_class(cls_name, attr_names): + """ + Create a tuple subclass to hold `Attribute`s for an `attrs` class. + + The subclass is a bare tuple with properties for names. + + class MyClassAttributes(tuple): + __slots__ = () + x = property(itemgetter(0)) + """ + attr_class_name = "{}Attributes".format(cls_name) + attr_class_template = [ + "class {}(tuple):".format(attr_class_name), + " __slots__ = ()", + ] + if attr_names: + for i, attr_name in enumerate(attr_names): + attr_class_template.append( + _tuple_property_pat.format(index=i, attr_name=attr_name) + ) + else: + attr_class_template.append(" pass") + globs = {"_attrs_itemgetter": itemgetter, "_attrs_property": property} + _compile_and_eval("\n".join(attr_class_template), globs) + return globs[attr_class_name] + + +# Tuple class for extracted attributes from a class definition. +# `base_attrs` is a subset of `attrs`. +_Attributes = _make_attr_tuple_class( + "_Attributes", + [ + # all attributes to build dunder methods for + "attrs", + # attributes that have been inherited + "base_attrs", + # map inherited attributes to their originating classes + "base_attrs_map", + ], +) + + +def _is_class_var(annot): + """ + Check whether *annot* is a typing.ClassVar. + + The string comparison hack is used to avoid evaluating all string + annotations which would put attrs-based classes at a performance + disadvantage compared to plain old classes. + """ + annot = str(annot) + + # Annotation can be quoted. + if annot.startswith(("'", '"')) and annot.endswith(("'", '"')): + annot = annot[1:-1] + + return annot.startswith(_classvar_prefixes) + + +def _has_own_attribute(cls, attrib_name): + """ + Check whether *cls* defines *attrib_name* (and doesn't just inherit it). + + Requires Python 3. + """ + attr = getattr(cls, attrib_name, _sentinel) + if attr is _sentinel: + return False + + for base_cls in cls.__mro__[1:]: + a = getattr(base_cls, attrib_name, None) + if attr is a: + return False + + return True + + +def _get_annotations(cls): + """ + Get annotations for *cls*. + """ + if _has_own_attribute(cls, "__annotations__"): + return cls.__annotations__ + + return {} + + +def _counter_getter(e): + """ + Key function for sorting to avoid re-creating a lambda for every class. + """ + return e[1].counter + + +def _collect_base_attrs(cls, taken_attr_names): + """ + Collect attr.ibs from base classes of *cls*, except *taken_attr_names*. + """ + base_attrs = [] + base_attr_map = {} # A dictionary of base attrs to their classes. + + # Traverse the MRO and collect attributes. + for base_cls in reversed(cls.__mro__[1:-1]): + for a in getattr(base_cls, "__attrs_attrs__", []): + if a.inherited or a.name in taken_attr_names: + continue + + a = a.evolve(inherited=True) + base_attrs.append(a) + base_attr_map[a.name] = base_cls + + # For each name, only keep the freshest definition i.e. the furthest at the + # back. base_attr_map is fine because it gets overwritten with every new + # instance. + filtered = [] + seen = set() + for a in reversed(base_attrs): + if a.name in seen: + continue + filtered.insert(0, a) + seen.add(a.name) + + return filtered, base_attr_map + + +def _collect_base_attrs_broken(cls, taken_attr_names): + """ + Collect attr.ibs from base classes of *cls*, except *taken_attr_names*. + + N.B. *taken_attr_names* will be mutated. + + Adhere to the old incorrect behavior. + + Notably it collects from the front and considers inherited attributes which + leads to the buggy behavior reported in #428. + """ + base_attrs = [] + base_attr_map = {} # A dictionary of base attrs to their classes. + + # Traverse the MRO and collect attributes. + for base_cls in cls.__mro__[1:-1]: + for a in getattr(base_cls, "__attrs_attrs__", []): + if a.name in taken_attr_names: + continue + + a = a.evolve(inherited=True) + taken_attr_names.add(a.name) + base_attrs.append(a) + base_attr_map[a.name] = base_cls + + return base_attrs, base_attr_map + + +def _transform_attrs( + cls, these, auto_attribs, kw_only, collect_by_mro, field_transformer +): + """ + Transform all `_CountingAttr`s on a class into `Attribute`s. + + If *these* is passed, use that and don't look for them on the class. + + *collect_by_mro* is True, collect them in the correct MRO order, otherwise + use the old -- incorrect -- order. See #428. + + Return an `_Attributes`. + """ + cd = cls.__dict__ + anns = _get_annotations(cls) + + if these is not None: + ca_list = [(name, ca) for name, ca in iteritems(these)] + + if not isinstance(these, ordered_dict): + ca_list.sort(key=_counter_getter) + elif auto_attribs is True: + ca_names = { + name + for name, attr in cd.items() + if isinstance(attr, _CountingAttr) + } + ca_list = [] + annot_names = set() + for attr_name, type in anns.items(): + if _is_class_var(type): + continue + annot_names.add(attr_name) + a = cd.get(attr_name, NOTHING) + + if not isinstance(a, _CountingAttr): + if a is NOTHING: + a = attrib() + else: + a = attrib(default=a) + ca_list.append((attr_name, a)) + + unannotated = ca_names - annot_names + if len(unannotated) > 0: + raise UnannotatedAttributeError( + "The following `attr.ib`s lack a type annotation: " + + ", ".join( + sorted(unannotated, key=lambda n: cd.get(n).counter) + ) + + "." + ) + else: + ca_list = sorted( + ( + (name, attr) + for name, attr in cd.items() + if isinstance(attr, _CountingAttr) + ), + key=lambda e: e[1].counter, + ) + + own_attrs = [ + Attribute.from_counting_attr( + name=attr_name, ca=ca, type=anns.get(attr_name) + ) + for attr_name, ca in ca_list + ] + + if collect_by_mro: + base_attrs, base_attr_map = _collect_base_attrs( + cls, {a.name for a in own_attrs} + ) + else: + base_attrs, base_attr_map = _collect_base_attrs_broken( + cls, {a.name for a in own_attrs} + ) + + if kw_only: + own_attrs = [a.evolve(kw_only=True) for a in own_attrs] + base_attrs = [a.evolve(kw_only=True) for a in base_attrs] + + attrs = base_attrs + own_attrs + + # Mandatory vs non-mandatory attr order only matters when they are part of + # the __init__ signature and when they aren't kw_only (which are moved to + # the end and can be mandatory or non-mandatory in any order, as they will + # be specified as keyword args anyway). Check the order of those attrs: + had_default = False + for a in (a for a in attrs if a.init is not False and a.kw_only is False): + if had_default is True and a.default is NOTHING: + raise ValueError( + "No mandatory attributes allowed after an attribute with a " + "default value or factory. Attribute in question: %r" % (a,) + ) + + if had_default is False and a.default is not NOTHING: + had_default = True + + if field_transformer is not None: + attrs = field_transformer(cls, attrs) + + # Create AttrsClass *after* applying the field_transformer since it may + # add or remove attributes! + attr_names = [a.name for a in attrs] + AttrsClass = _make_attr_tuple_class(cls.__name__, attr_names) + + return _Attributes((AttrsClass(attrs), base_attrs, base_attr_map)) + + +if PYPY: + + def _frozen_setattrs(self, name, value): + """ + Attached to frozen classes as __setattr__. + """ + if isinstance(self, BaseException) and name in ( + "__cause__", + "__context__", + ): + BaseException.__setattr__(self, name, value) + return + + raise FrozenInstanceError() + +else: + + def _frozen_setattrs(self, name, value): + """ + Attached to frozen classes as __setattr__. + """ + raise FrozenInstanceError() + + +def _frozen_delattrs(self, name): + """ + Attached to frozen classes as __delattr__. + """ + raise FrozenInstanceError() + + +class _ClassBuilder(object): + """ + Iteratively build *one* class. + """ + + __slots__ = ( + "_attr_names", + "_attrs", + "_base_attr_map", + "_base_names", + "_cache_hash", + "_cls", + "_cls_dict", + "_delete_attribs", + "_frozen", + "_has_pre_init", + "_has_post_init", + "_is_exc", + "_on_setattr", + "_slots", + "_weakref_slot", + "_wrote_own_setattr", + "_has_custom_setattr", + ) + + def __init__( + self, + cls, + these, + slots, + frozen, + weakref_slot, + getstate_setstate, + auto_attribs, + kw_only, + cache_hash, + is_exc, + collect_by_mro, + on_setattr, + has_custom_setattr, + field_transformer, + ): + attrs, base_attrs, base_map = _transform_attrs( + cls, + these, + auto_attribs, + kw_only, + collect_by_mro, + field_transformer, + ) + + self._cls = cls + self._cls_dict = dict(cls.__dict__) if slots else {} + self._attrs = attrs + self._base_names = set(a.name for a in base_attrs) + self._base_attr_map = base_map + self._attr_names = tuple(a.name for a in attrs) + self._slots = slots + self._frozen = frozen + self._weakref_slot = weakref_slot + self._cache_hash = cache_hash + self._has_pre_init = bool(getattr(cls, "__attrs_pre_init__", False)) + self._has_post_init = bool(getattr(cls, "__attrs_post_init__", False)) + self._delete_attribs = not bool(these) + self._is_exc = is_exc + self._on_setattr = on_setattr + + self._has_custom_setattr = has_custom_setattr + self._wrote_own_setattr = False + + self._cls_dict["__attrs_attrs__"] = self._attrs + + if frozen: + self._cls_dict["__setattr__"] = _frozen_setattrs + self._cls_dict["__delattr__"] = _frozen_delattrs + + self._wrote_own_setattr = True + elif on_setattr in ( + _ng_default_on_setattr, + setters.validate, + setters.convert, + ): + has_validator = has_converter = False + for a in attrs: + if a.validator is not None: + has_validator = True + if a.converter is not None: + has_converter = True + + if has_validator and has_converter: + break + if ( + ( + on_setattr == _ng_default_on_setattr + and not (has_validator or has_converter) + ) + or (on_setattr == setters.validate and not has_validator) + or (on_setattr == setters.convert and not has_converter) + ): + # If class-level on_setattr is set to convert + validate, but + # there's no field to convert or validate, pretend like there's + # no on_setattr. + self._on_setattr = None + + if getstate_setstate: + ( + self._cls_dict["__getstate__"], + self._cls_dict["__setstate__"], + ) = self._make_getstate_setstate() + + def __repr__(self): + return "<_ClassBuilder(cls={cls})>".format(cls=self._cls.__name__) + + def build_class(self): + """ + Finalize class based on the accumulated configuration. + + Builder cannot be used after calling this method. + """ + if self._slots is True: + return self._create_slots_class() + else: + return self._patch_original_class() + + def _patch_original_class(self): + """ + Apply accumulated methods and return the class. + """ + cls = self._cls + base_names = self._base_names + + # Clean class of attribute definitions (`attr.ib()`s). + if self._delete_attribs: + for name in self._attr_names: + if ( + name not in base_names + and getattr(cls, name, _sentinel) is not _sentinel + ): + try: + delattr(cls, name) + except AttributeError: + # This can happen if a base class defines a class + # variable and we want to set an attribute with the + # same name by using only a type annotation. + pass + + # Attach our dunder methods. + for name, value in self._cls_dict.items(): + setattr(cls, name, value) + + # If we've inherited an attrs __setattr__ and don't write our own, + # reset it to object's. + if not self._wrote_own_setattr and getattr( + cls, "__attrs_own_setattr__", False + ): + cls.__attrs_own_setattr__ = False + + if not self._has_custom_setattr: + cls.__setattr__ = object.__setattr__ + + return cls + + def _create_slots_class(self): + """ + Build and return a new class with a `__slots__` attribute. + """ + cd = { + k: v + for k, v in iteritems(self._cls_dict) + if k not in tuple(self._attr_names) + ("__dict__", "__weakref__") + } + + # If our class doesn't have its own implementation of __setattr__ + # (either from the user or by us), check the bases, if one of them has + # an attrs-made __setattr__, that needs to be reset. We don't walk the + # MRO because we only care about our immediate base classes. + # XXX: This can be confused by subclassing a slotted attrs class with + # XXX: a non-attrs class and subclass the resulting class with an attrs + # XXX: class. See `test_slotted_confused` for details. For now that's + # XXX: OK with us. + if not self._wrote_own_setattr: + cd["__attrs_own_setattr__"] = False + + if not self._has_custom_setattr: + for base_cls in self._cls.__bases__: + if base_cls.__dict__.get("__attrs_own_setattr__", False): + cd["__setattr__"] = object.__setattr__ + break + + # Traverse the MRO to collect existing slots + # and check for an existing __weakref__. + existing_slots = dict() + weakref_inherited = False + for base_cls in self._cls.__mro__[1:-1]: + if base_cls.__dict__.get("__weakref__", None) is not None: + weakref_inherited = True + existing_slots.update( + { + name: getattr(base_cls, name) + for name in getattr(base_cls, "__slots__", []) + } + ) + + base_names = set(self._base_names) + + names = self._attr_names + if ( + self._weakref_slot + and "__weakref__" not in getattr(self._cls, "__slots__", ()) + and "__weakref__" not in names + and not weakref_inherited + ): + names += ("__weakref__",) + + # We only add the names of attributes that aren't inherited. + # Setting __slots__ to inherited attributes wastes memory. + slot_names = [name for name in names if name not in base_names] + # There are slots for attributes from current class + # that are defined in parent classes. + # As their descriptors may be overriden by a child class, + # we collect them here and update the class dict + reused_slots = { + slot: slot_descriptor + for slot, slot_descriptor in iteritems(existing_slots) + if slot in slot_names + } + slot_names = [name for name in slot_names if name not in reused_slots] + cd.update(reused_slots) + if self._cache_hash: + slot_names.append(_hash_cache_field) + cd["__slots__"] = tuple(slot_names) + + qualname = getattr(self._cls, "__qualname__", None) + if qualname is not None: + cd["__qualname__"] = qualname + + # Create new class based on old class and our methods. + cls = type(self._cls)(self._cls.__name__, self._cls.__bases__, cd) + + # The following is a fix for + # . On Python 3, + # if a method mentions `__class__` or uses the no-arg super(), the + # compiler will bake a reference to the class in the method itself + # as `method.__closure__`. Since we replace the class with a + # clone, we rewrite these references so it keeps working. + for item in cls.__dict__.values(): + if isinstance(item, (classmethod, staticmethod)): + # Class- and staticmethods hide their functions inside. + # These might need to be rewritten as well. + closure_cells = getattr(item.__func__, "__closure__", None) + elif isinstance(item, property): + # Workaround for property `super()` shortcut (PY3-only). + # There is no universal way for other descriptors. + closure_cells = getattr(item.fget, "__closure__", None) + else: + closure_cells = getattr(item, "__closure__", None) + + if not closure_cells: # Catch None or the empty list. + continue + for cell in closure_cells: + try: + match = cell.cell_contents is self._cls + except ValueError: # ValueError: Cell is empty + pass + else: + if match: + set_closure_cell(cell, cls) + + return cls + + def add_repr(self, ns): + self._cls_dict["__repr__"] = self._add_method_dunders( + _make_repr(self._attrs, ns, self._cls) + ) + return self + + def add_str(self): + repr = self._cls_dict.get("__repr__") + if repr is None: + raise ValueError( + "__str__ can only be generated if a __repr__ exists." + ) + + def __str__(self): + return self.__repr__() + + self._cls_dict["__str__"] = self._add_method_dunders(__str__) + return self + + def _make_getstate_setstate(self): + """ + Create custom __setstate__ and __getstate__ methods. + """ + # __weakref__ is not writable. + state_attr_names = tuple( + an for an in self._attr_names if an != "__weakref__" + ) + + def slots_getstate(self): + """ + Automatically created by attrs. + """ + return tuple(getattr(self, name) for name in state_attr_names) + + hash_caching_enabled = self._cache_hash + + def slots_setstate(self, state): + """ + Automatically created by attrs. + """ + __bound_setattr = _obj_setattr.__get__(self, Attribute) + for name, value in zip(state_attr_names, state): + __bound_setattr(name, value) + + # The hash code cache is not included when the object is + # serialized, but it still needs to be initialized to None to + # indicate that the first call to __hash__ should be a cache + # miss. + if hash_caching_enabled: + __bound_setattr(_hash_cache_field, None) + + return slots_getstate, slots_setstate + + def make_unhashable(self): + self._cls_dict["__hash__"] = None + return self + + def add_hash(self): + self._cls_dict["__hash__"] = self._add_method_dunders( + _make_hash( + self._cls, + self._attrs, + frozen=self._frozen, + cache_hash=self._cache_hash, + ) + ) + + return self + + def add_init(self): + self._cls_dict["__init__"] = self._add_method_dunders( + _make_init( + self._cls, + self._attrs, + self._has_pre_init, + self._has_post_init, + self._frozen, + self._slots, + self._cache_hash, + self._base_attr_map, + self._is_exc, + self._on_setattr, + attrs_init=False, + ) + ) + + return self + + def add_match_args(self): + self._cls_dict["__match_args__"] = tuple( + field.name + for field in self._attrs + if field.init and not field.kw_only + ) + + def add_attrs_init(self): + self._cls_dict["__attrs_init__"] = self._add_method_dunders( + _make_init( + self._cls, + self._attrs, + self._has_pre_init, + self._has_post_init, + self._frozen, + self._slots, + self._cache_hash, + self._base_attr_map, + self._is_exc, + self._on_setattr, + attrs_init=True, + ) + ) + + return self + + def add_eq(self): + cd = self._cls_dict + + cd["__eq__"] = self._add_method_dunders( + _make_eq(self._cls, self._attrs) + ) + cd["__ne__"] = self._add_method_dunders(_make_ne()) + + return self + + def add_order(self): + cd = self._cls_dict + + cd["__lt__"], cd["__le__"], cd["__gt__"], cd["__ge__"] = ( + self._add_method_dunders(meth) + for meth in _make_order(self._cls, self._attrs) + ) + + return self + + def add_setattr(self): + if self._frozen: + return self + + sa_attrs = {} + for a in self._attrs: + on_setattr = a.on_setattr or self._on_setattr + if on_setattr and on_setattr is not setters.NO_OP: + sa_attrs[a.name] = a, on_setattr + + if not sa_attrs: + return self + + if self._has_custom_setattr: + # We need to write a __setattr__ but there already is one! + raise ValueError( + "Can't combine custom __setattr__ with on_setattr hooks." + ) + + # docstring comes from _add_method_dunders + def __setattr__(self, name, val): + try: + a, hook = sa_attrs[name] + except KeyError: + nval = val + else: + nval = hook(self, a, val) + + _obj_setattr(self, name, nval) + + self._cls_dict["__attrs_own_setattr__"] = True + self._cls_dict["__setattr__"] = self._add_method_dunders(__setattr__) + self._wrote_own_setattr = True + + return self + + def _add_method_dunders(self, method): + """ + Add __module__ and __qualname__ to a *method* if possible. + """ + try: + method.__module__ = self._cls.__module__ + except AttributeError: + pass + + try: + method.__qualname__ = ".".join( + (self._cls.__qualname__, method.__name__) + ) + except AttributeError: + pass + + try: + method.__doc__ = "Method generated by attrs for class %s." % ( + self._cls.__qualname__, + ) + except AttributeError: + pass + + return method + + +_CMP_DEPRECATION = ( + "The usage of `cmp` is deprecated and will be removed on or after " + "2021-06-01. Please use `eq` and `order` instead." +) + + +def _determine_attrs_eq_order(cmp, eq, order, default_eq): + """ + Validate the combination of *cmp*, *eq*, and *order*. Derive the effective + values of eq and order. If *eq* is None, set it to *default_eq*. + """ + if cmp is not None and any((eq is not None, order is not None)): + raise ValueError("Don't mix `cmp` with `eq' and `order`.") + + # cmp takes precedence due to bw-compatibility. + if cmp is not None: + return cmp, cmp + + # If left None, equality is set to the specified default and ordering + # mirrors equality. + if eq is None: + eq = default_eq + + if order is None: + order = eq + + if eq is False and order is True: + raise ValueError("`order` can only be True if `eq` is True too.") + + return eq, order + + +def _determine_attrib_eq_order(cmp, eq, order, default_eq): + """ + Validate the combination of *cmp*, *eq*, and *order*. Derive the effective + values of eq and order. If *eq* is None, set it to *default_eq*. + """ + if cmp is not None and any((eq is not None, order is not None)): + raise ValueError("Don't mix `cmp` with `eq' and `order`.") + + def decide_callable_or_boolean(value): + """ + Decide whether a key function is used. + """ + if callable(value): + value, key = True, value + else: + key = None + return value, key + + # cmp takes precedence due to bw-compatibility. + if cmp is not None: + cmp, cmp_key = decide_callable_or_boolean(cmp) + return cmp, cmp_key, cmp, cmp_key + + # If left None, equality is set to the specified default and ordering + # mirrors equality. + if eq is None: + eq, eq_key = default_eq, None + else: + eq, eq_key = decide_callable_or_boolean(eq) + + if order is None: + order, order_key = eq, eq_key + else: + order, order_key = decide_callable_or_boolean(order) + + if eq is False and order is True: + raise ValueError("`order` can only be True if `eq` is True too.") + + return eq, eq_key, order, order_key + + +def _determine_whether_to_implement( + cls, flag, auto_detect, dunders, default=True +): + """ + Check whether we should implement a set of methods for *cls*. + + *flag* is the argument passed into @attr.s like 'init', *auto_detect* the + same as passed into @attr.s and *dunders* is a tuple of attribute names + whose presence signal that the user has implemented it themselves. + + Return *default* if no reason for either for or against is found. + + auto_detect must be False on Python 2. + """ + if flag is True or flag is False: + return flag + + if flag is None and auto_detect is False: + return default + + # Logically, flag is None and auto_detect is True here. + for dunder in dunders: + if _has_own_attribute(cls, dunder): + return False + + return default + + +def attrs( + maybe_cls=None, + these=None, + repr_ns=None, + repr=None, + cmp=None, + hash=None, + init=None, + slots=False, + frozen=False, + weakref_slot=True, + str=False, + auto_attribs=False, + kw_only=False, + cache_hash=False, + auto_exc=False, + eq=None, + order=None, + auto_detect=False, + collect_by_mro=False, + getstate_setstate=None, + on_setattr=None, + field_transformer=None, + match_args=True, +): + r""" + A class decorator that adds `dunder + `_\ -methods according to the + specified attributes using `attr.ib` or the *these* argument. + + :param these: A dictionary of name to `attr.ib` mappings. This is + useful to avoid the definition of your attributes within the class body + because you can't (e.g. if you want to add ``__repr__`` methods to + Django models) or don't want to. + + If *these* is not ``None``, ``attrs`` will *not* search the class body + for attributes and will *not* remove any attributes from it. + + If *these* is an ordered dict (`dict` on Python 3.6+, + `collections.OrderedDict` otherwise), the order is deduced from + the order of the attributes inside *these*. Otherwise the order + of the definition of the attributes is used. + + :type these: `dict` of `str` to `attr.ib` + + :param str repr_ns: When using nested classes, there's no way in Python 2 + to automatically detect that. Therefore it's possible to set the + namespace explicitly for a more meaningful ``repr`` output. + :param bool auto_detect: Instead of setting the *init*, *repr*, *eq*, + *order*, and *hash* arguments explicitly, assume they are set to + ``True`` **unless any** of the involved methods for one of the + arguments is implemented in the *current* class (i.e. it is *not* + inherited from some base class). + + So for example by implementing ``__eq__`` on a class yourself, + ``attrs`` will deduce ``eq=False`` and will create *neither* + ``__eq__`` *nor* ``__ne__`` (but Python classes come with a sensible + ``__ne__`` by default, so it *should* be enough to only implement + ``__eq__`` in most cases). + + .. warning:: + + If you prevent ``attrs`` from creating the ordering methods for you + (``order=False``, e.g. by implementing ``__le__``), it becomes + *your* responsibility to make sure its ordering is sound. The best + way is to use the `functools.total_ordering` decorator. + + + Passing ``True`` or ``False`` to *init*, *repr*, *eq*, *order*, + *cmp*, or *hash* overrides whatever *auto_detect* would determine. + + *auto_detect* requires Python 3. Setting it ``True`` on Python 2 raises + an `attrs.exceptions.PythonTooOldError`. + + :param bool repr: Create a ``__repr__`` method with a human readable + representation of ``attrs`` attributes.. + :param bool str: Create a ``__str__`` method that is identical to + ``__repr__``. This is usually not necessary except for + `Exception`\ s. + :param Optional[bool] eq: If ``True`` or ``None`` (default), add ``__eq__`` + and ``__ne__`` methods that check two instances for equality. + + They compare the instances as if they were tuples of their ``attrs`` + attributes if and only if the types of both classes are *identical*! + :param Optional[bool] order: If ``True``, add ``__lt__``, ``__le__``, + ``__gt__``, and ``__ge__`` methods that behave like *eq* above and + allow instances to be ordered. If ``None`` (default) mirror value of + *eq*. + :param Optional[bool] cmp: Setting *cmp* is equivalent to setting *eq* + and *order* to the same value. Must not be mixed with *eq* or *order*. + :param Optional[bool] hash: If ``None`` (default), the ``__hash__`` method + is generated according how *eq* and *frozen* are set. + + 1. If *both* are True, ``attrs`` will generate a ``__hash__`` for you. + 2. If *eq* is True and *frozen* is False, ``__hash__`` will be set to + None, marking it unhashable (which it is). + 3. If *eq* is False, ``__hash__`` will be left untouched meaning the + ``__hash__`` method of the base class will be used (if base class is + ``object``, this means it will fall back to id-based hashing.). + + Although not recommended, you can decide for yourself and force + ``attrs`` to create one (e.g. if the class is immutable even though you + didn't freeze it programmatically) by passing ``True`` or not. Both of + these cases are rather special and should be used carefully. + + See our documentation on `hashing`, Python's documentation on + `object.__hash__`, and the `GitHub issue that led to the default \ + behavior `_ for more + details. + :param bool init: Create a ``__init__`` method that initializes the + ``attrs`` attributes. Leading underscores are stripped for the argument + name. If a ``__attrs_pre_init__`` method exists on the class, it will + be called before the class is initialized. If a ``__attrs_post_init__`` + method exists on the class, it will be called after the class is fully + initialized. + + If ``init`` is ``False``, an ``__attrs_init__`` method will be + injected instead. This allows you to define a custom ``__init__`` + method that can do pre-init work such as ``super().__init__()``, + and then call ``__attrs_init__()`` and ``__attrs_post_init__()``. + :param bool slots: Create a `slotted class ` that's more + memory-efficient. Slotted classes are generally superior to the default + dict classes, but have some gotchas you should know about, so we + encourage you to read the `glossary entry `. + :param bool frozen: Make instances immutable after initialization. If + someone attempts to modify a frozen instance, + `attr.exceptions.FrozenInstanceError` is raised. + + .. note:: + + 1. This is achieved by installing a custom ``__setattr__`` method + on your class, so you can't implement your own. + + 2. True immutability is impossible in Python. + + 3. This *does* have a minor a runtime performance `impact + ` when initializing new instances. In other words: + ``__init__`` is slightly slower with ``frozen=True``. + + 4. If a class is frozen, you cannot modify ``self`` in + ``__attrs_post_init__`` or a self-written ``__init__``. You can + circumvent that limitation by using + ``object.__setattr__(self, "attribute_name", value)``. + + 5. Subclasses of a frozen class are frozen too. + + :param bool weakref_slot: Make instances weak-referenceable. This has no + effect unless ``slots`` is also enabled. + :param bool auto_attribs: If ``True``, collect `PEP 526`_-annotated + attributes (Python 3.6 and later only) from the class body. + + In this case, you **must** annotate every field. If ``attrs`` + encounters a field that is set to an `attr.ib` but lacks a type + annotation, an `attr.exceptions.UnannotatedAttributeError` is + raised. Use ``field_name: typing.Any = attr.ib(...)`` if you don't + want to set a type. + + If you assign a value to those attributes (e.g. ``x: int = 42``), that + value becomes the default value like if it were passed using + ``attr.ib(default=42)``. Passing an instance of `attrs.Factory` also + works as expected in most cases (see warning below). + + Attributes annotated as `typing.ClassVar`, and attributes that are + neither annotated nor set to an `attr.ib` are **ignored**. + + .. warning:: + For features that use the attribute name to create decorators (e.g. + `validators `), you still *must* assign `attr.ib` to + them. Otherwise Python will either not find the name or try to use + the default value to call e.g. ``validator`` on it. + + These errors can be quite confusing and probably the most common bug + report on our bug tracker. + + .. _`PEP 526`: https://www.python.org/dev/peps/pep-0526/ + :param bool kw_only: Make all attributes keyword-only (Python 3+) + in the generated ``__init__`` (if ``init`` is ``False``, this + parameter is ignored). + :param bool cache_hash: Ensure that the object's hash code is computed + only once and stored on the object. If this is set to ``True``, + hashing must be either explicitly or implicitly enabled for this + class. If the hash code is cached, avoid any reassignments of + fields involved in hash code computation or mutations of the objects + those fields point to after object creation. If such changes occur, + the behavior of the object's hash code is undefined. + :param bool auto_exc: If the class subclasses `BaseException` + (which implicitly includes any subclass of any exception), the + following happens to behave like a well-behaved Python exceptions + class: + + - the values for *eq*, *order*, and *hash* are ignored and the + instances compare and hash by the instance's ids (N.B. ``attrs`` will + *not* remove existing implementations of ``__hash__`` or the equality + methods. It just won't add own ones.), + - all attributes that are either passed into ``__init__`` or have a + default value are additionally available as a tuple in the ``args`` + attribute, + - the value of *str* is ignored leaving ``__str__`` to base classes. + :param bool collect_by_mro: Setting this to `True` fixes the way ``attrs`` + collects attributes from base classes. The default behavior is + incorrect in certain cases of multiple inheritance. It should be on by + default but is kept off for backward-compatibility. + + See issue `#428 `_ for + more details. + + :param Optional[bool] getstate_setstate: + .. note:: + This is usually only interesting for slotted classes and you should + probably just set *auto_detect* to `True`. + + If `True`, ``__getstate__`` and + ``__setstate__`` are generated and attached to the class. This is + necessary for slotted classes to be pickleable. If left `None`, it's + `True` by default for slotted classes and ``False`` for dict classes. + + If *auto_detect* is `True`, and *getstate_setstate* is left `None`, + and **either** ``__getstate__`` or ``__setstate__`` is detected directly + on the class (i.e. not inherited), it is set to `False` (this is usually + what you want). + + :param on_setattr: A callable that is run whenever the user attempts to set + an attribute (either by assignment like ``i.x = 42`` or by using + `setattr` like ``setattr(i, "x", 42)``). It receives the same arguments + as validators: the instance, the attribute that is being modified, and + the new value. + + If no exception is raised, the attribute is set to the return value of + the callable. + + If a list of callables is passed, they're automatically wrapped in an + `attrs.setters.pipe`. + + :param Optional[callable] field_transformer: + A function that is called with the original class object and all + fields right before ``attrs`` finalizes the class. You can use + this, e.g., to automatically add converters or validators to + fields based on their types. See `transform-fields` for more details. + + :param bool match_args: + If `True` (default), set ``__match_args__`` on the class to support + `PEP 634 `_ (Structural + Pattern Matching). It is a tuple of all positional-only ``__init__`` + parameter names on Python 3.10 and later. Ignored on older Python + versions. + + .. versionadded:: 16.0.0 *slots* + .. versionadded:: 16.1.0 *frozen* + .. versionadded:: 16.3.0 *str* + .. versionadded:: 16.3.0 Support for ``__attrs_post_init__``. + .. versionchanged:: 17.1.0 + *hash* supports ``None`` as value which is also the default now. + .. versionadded:: 17.3.0 *auto_attribs* + .. versionchanged:: 18.1.0 + If *these* is passed, no attributes are deleted from the class body. + .. versionchanged:: 18.1.0 If *these* is ordered, the order is retained. + .. versionadded:: 18.2.0 *weakref_slot* + .. deprecated:: 18.2.0 + ``__lt__``, ``__le__``, ``__gt__``, and ``__ge__`` now raise a + `DeprecationWarning` if the classes compared are subclasses of + each other. ``__eq`` and ``__ne__`` never tried to compared subclasses + to each other. + .. versionchanged:: 19.2.0 + ``__lt__``, ``__le__``, ``__gt__``, and ``__ge__`` now do not consider + subclasses comparable anymore. + .. versionadded:: 18.2.0 *kw_only* + .. versionadded:: 18.2.0 *cache_hash* + .. versionadded:: 19.1.0 *auto_exc* + .. deprecated:: 19.2.0 *cmp* Removal on or after 2021-06-01. + .. versionadded:: 19.2.0 *eq* and *order* + .. versionadded:: 20.1.0 *auto_detect* + .. versionadded:: 20.1.0 *collect_by_mro* + .. versionadded:: 20.1.0 *getstate_setstate* + .. versionadded:: 20.1.0 *on_setattr* + .. versionadded:: 20.3.0 *field_transformer* + .. versionchanged:: 21.1.0 + ``init=False`` injects ``__attrs_init__`` + .. versionchanged:: 21.1.0 Support for ``__attrs_pre_init__`` + .. versionchanged:: 21.1.0 *cmp* undeprecated + .. versionadded:: 21.3.0 *match_args* + """ + if auto_detect and PY2: + raise PythonTooOldError( + "auto_detect only works on Python 3 and later." + ) + + eq_, order_ = _determine_attrs_eq_order(cmp, eq, order, None) + hash_ = hash # work around the lack of nonlocal + + if isinstance(on_setattr, (list, tuple)): + on_setattr = setters.pipe(*on_setattr) + + def wrap(cls): + + if getattr(cls, "__class__", None) is None: + raise TypeError("attrs only works with new-style classes.") + + is_frozen = frozen or _has_frozen_base_class(cls) + is_exc = auto_exc is True and issubclass(cls, BaseException) + has_own_setattr = auto_detect and _has_own_attribute( + cls, "__setattr__" + ) + + if has_own_setattr and is_frozen: + raise ValueError("Can't freeze a class with a custom __setattr__.") + + builder = _ClassBuilder( + cls, + these, + slots, + is_frozen, + weakref_slot, + _determine_whether_to_implement( + cls, + getstate_setstate, + auto_detect, + ("__getstate__", "__setstate__"), + default=slots, + ), + auto_attribs, + kw_only, + cache_hash, + is_exc, + collect_by_mro, + on_setattr, + has_own_setattr, + field_transformer, + ) + if _determine_whether_to_implement( + cls, repr, auto_detect, ("__repr__",) + ): + builder.add_repr(repr_ns) + if str is True: + builder.add_str() + + eq = _determine_whether_to_implement( + cls, eq_, auto_detect, ("__eq__", "__ne__") + ) + if not is_exc and eq is True: + builder.add_eq() + if not is_exc and _determine_whether_to_implement( + cls, order_, auto_detect, ("__lt__", "__le__", "__gt__", "__ge__") + ): + builder.add_order() + + builder.add_setattr() + + if ( + hash_ is None + and auto_detect is True + and _has_own_attribute(cls, "__hash__") + ): + hash = False + else: + hash = hash_ + if hash is not True and hash is not False and hash is not None: + # Can't use `hash in` because 1 == True for example. + raise TypeError( + "Invalid value for hash. Must be True, False, or None." + ) + elif hash is False or (hash is None and eq is False) or is_exc: + # Don't do anything. Should fall back to __object__'s __hash__ + # which is by id. + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " hashing must be either explicitly or implicitly " + "enabled." + ) + elif hash is True or ( + hash is None and eq is True and is_frozen is True + ): + # Build a __hash__ if told so, or if it's safe. + builder.add_hash() + else: + # Raise TypeError on attempts to hash. + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " hashing must be either explicitly or implicitly " + "enabled." + ) + builder.make_unhashable() + + if _determine_whether_to_implement( + cls, init, auto_detect, ("__init__",) + ): + builder.add_init() + else: + builder.add_attrs_init() + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " init must be True." + ) + + if ( + PY310 + and match_args + and not _has_own_attribute(cls, "__match_args__") + ): + builder.add_match_args() + + return builder.build_class() + + # maybe_cls's type depends on the usage of the decorator. It's a class + # if it's used as `@attrs` but ``None`` if used as `@attrs()`. + if maybe_cls is None: + return wrap + else: + return wrap(maybe_cls) + + +_attrs = attrs +""" +Internal alias so we can use it in functions that take an argument called +*attrs*. +""" + + +if PY2: + + def _has_frozen_base_class(cls): + """ + Check whether *cls* has a frozen ancestor by looking at its + __setattr__. + """ + return ( + getattr(cls.__setattr__, "__module__", None) + == _frozen_setattrs.__module__ + and cls.__setattr__.__name__ == _frozen_setattrs.__name__ + ) + +else: + + def _has_frozen_base_class(cls): + """ + Check whether *cls* has a frozen ancestor by looking at its + __setattr__. + """ + return cls.__setattr__ == _frozen_setattrs + + +def _generate_unique_filename(cls, func_name): + """ + Create a "filename" suitable for a function being generated. + """ + unique_filename = "".format( + func_name, + cls.__module__, + getattr(cls, "__qualname__", cls.__name__), + ) + return unique_filename + + +def _make_hash(cls, attrs, frozen, cache_hash): + attrs = tuple( + a for a in attrs if a.hash is True or (a.hash is None and a.eq is True) + ) + + tab = " " + + unique_filename = _generate_unique_filename(cls, "hash") + type_hash = hash(unique_filename) + + hash_def = "def __hash__(self" + hash_func = "hash((" + closing_braces = "))" + if not cache_hash: + hash_def += "):" + else: + if not PY2: + hash_def += ", *" + + hash_def += ( + ", _cache_wrapper=" + + "__import__('attr._make')._make._CacheHashWrapper):" + ) + hash_func = "_cache_wrapper(" + hash_func + closing_braces += ")" + + method_lines = [hash_def] + + def append_hash_computation_lines(prefix, indent): + """ + Generate the code for actually computing the hash code. + Below this will either be returned directly or used to compute + a value which is then cached, depending on the value of cache_hash + """ + + method_lines.extend( + [ + indent + prefix + hash_func, + indent + " %d," % (type_hash,), + ] + ) + + for a in attrs: + method_lines.append(indent + " self.%s," % a.name) + + method_lines.append(indent + " " + closing_braces) + + if cache_hash: + method_lines.append(tab + "if self.%s is None:" % _hash_cache_field) + if frozen: + append_hash_computation_lines( + "object.__setattr__(self, '%s', " % _hash_cache_field, tab * 2 + ) + method_lines.append(tab * 2 + ")") # close __setattr__ + else: + append_hash_computation_lines( + "self.%s = " % _hash_cache_field, tab * 2 + ) + method_lines.append(tab + "return self.%s" % _hash_cache_field) + else: + append_hash_computation_lines("return ", tab) + + script = "\n".join(method_lines) + return _make_method("__hash__", script, unique_filename) + + +def _add_hash(cls, attrs): + """ + Add a hash method to *cls*. + """ + cls.__hash__ = _make_hash(cls, attrs, frozen=False, cache_hash=False) + return cls + + +def _make_ne(): + """ + Create __ne__ method. + """ + + def __ne__(self, other): + """ + Check equality and either forward a NotImplemented or + return the result negated. + """ + result = self.__eq__(other) + if result is NotImplemented: + return NotImplemented + + return not result + + return __ne__ + + +def _make_eq(cls, attrs): + """ + Create __eq__ method for *cls* with *attrs*. + """ + attrs = [a for a in attrs if a.eq] + + unique_filename = _generate_unique_filename(cls, "eq") + lines = [ + "def __eq__(self, other):", + " if other.__class__ is not self.__class__:", + " return NotImplemented", + ] + + # We can't just do a big self.x = other.x and... clause due to + # irregularities like nan == nan is false but (nan,) == (nan,) is true. + globs = {} + if attrs: + lines.append(" return (") + others = [" ) == ("] + for a in attrs: + if a.eq_key: + cmp_name = "_%s_key" % (a.name,) + # Add the key function to the global namespace + # of the evaluated function. + globs[cmp_name] = a.eq_key + lines.append( + " %s(self.%s)," + % ( + cmp_name, + a.name, + ) + ) + others.append( + " %s(other.%s)," + % ( + cmp_name, + a.name, + ) + ) + else: + lines.append(" self.%s," % (a.name,)) + others.append(" other.%s," % (a.name,)) + + lines += others + [" )"] + else: + lines.append(" return True") + + script = "\n".join(lines) + + return _make_method("__eq__", script, unique_filename, globs) + + +def _make_order(cls, attrs): + """ + Create ordering methods for *cls* with *attrs*. + """ + attrs = [a for a in attrs if a.order] + + def attrs_to_tuple(obj): + """ + Save us some typing. + """ + return tuple( + key(value) if key else value + for value, key in ( + (getattr(obj, a.name), a.order_key) for a in attrs + ) + ) + + def __lt__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) < attrs_to_tuple(other) + + return NotImplemented + + def __le__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) <= attrs_to_tuple(other) + + return NotImplemented + + def __gt__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) > attrs_to_tuple(other) + + return NotImplemented + + def __ge__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) >= attrs_to_tuple(other) + + return NotImplemented + + return __lt__, __le__, __gt__, __ge__ + + +def _add_eq(cls, attrs=None): + """ + Add equality methods to *cls* with *attrs*. + """ + if attrs is None: + attrs = cls.__attrs_attrs__ + + cls.__eq__ = _make_eq(cls, attrs) + cls.__ne__ = _make_ne() + + return cls + + +if HAS_F_STRINGS: + + def _make_repr(attrs, ns, cls): + unique_filename = _generate_unique_filename(cls, "repr") + # Figure out which attributes to include, and which function to use to + # format them. The a.repr value can be either bool or a custom + # callable. + attr_names_with_reprs = tuple( + (a.name, (repr if a.repr is True else a.repr), a.init) + for a in attrs + if a.repr is not False + ) + globs = { + name + "_repr": r + for name, r, _ in attr_names_with_reprs + if r != repr + } + globs["_compat"] = _compat + globs["AttributeError"] = AttributeError + globs["NOTHING"] = NOTHING + attribute_fragments = [] + for name, r, i in attr_names_with_reprs: + accessor = ( + "self." + name + if i + else 'getattr(self, "' + name + '", NOTHING)' + ) + fragment = ( + "%s={%s!r}" % (name, accessor) + if r == repr + else "%s={%s_repr(%s)}" % (name, name, accessor) + ) + attribute_fragments.append(fragment) + repr_fragment = ", ".join(attribute_fragments) + + if ns is None: + cls_name_fragment = ( + '{self.__class__.__qualname__.rsplit(">.", 1)[-1]}' + ) + else: + cls_name_fragment = ns + ".{self.__class__.__name__}" + + lines = [ + "def __repr__(self):", + " try:", + " already_repring = _compat.repr_context.already_repring", + " except AttributeError:", + " already_repring = {id(self),}", + " _compat.repr_context.already_repring = already_repring", + " else:", + " if id(self) in already_repring:", + " return '...'", + " else:", + " already_repring.add(id(self))", + " try:", + " return f'%s(%s)'" % (cls_name_fragment, repr_fragment), + " finally:", + " already_repring.remove(id(self))", + ] + + return _make_method( + "__repr__", "\n".join(lines), unique_filename, globs=globs + ) + +else: + + def _make_repr(attrs, ns, _): + """ + Make a repr method that includes relevant *attrs*, adding *ns* to the + full name. + """ + + # Figure out which attributes to include, and which function to use to + # format them. The a.repr value can be either bool or a custom + # callable. + attr_names_with_reprs = tuple( + (a.name, repr if a.repr is True else a.repr) + for a in attrs + if a.repr is not False + ) + + def __repr__(self): + """ + Automatically created by attrs. + """ + try: + already_repring = _compat.repr_context.already_repring + except AttributeError: + already_repring = set() + _compat.repr_context.already_repring = already_repring + + if id(self) in already_repring: + return "..." + real_cls = self.__class__ + if ns is None: + qualname = getattr(real_cls, "__qualname__", None) + if qualname is not None: # pragma: no cover + # This case only happens on Python 3.5 and 3.6. We exclude + # it from coverage, because we don't want to slow down our + # test suite by running them under coverage too for this + # one line. + class_name = qualname.rsplit(">.", 1)[-1] + else: + class_name = real_cls.__name__ + else: + class_name = ns + "." + real_cls.__name__ + + # Since 'self' remains on the stack (i.e.: strongly referenced) + # for the duration of this call, it's safe to depend on id(...) + # stability, and not need to track the instance and therefore + # worry about properties like weakref- or hash-ability. + already_repring.add(id(self)) + try: + result = [class_name, "("] + first = True + for name, attr_repr in attr_names_with_reprs: + if first: + first = False + else: + result.append(", ") + result.extend( + (name, "=", attr_repr(getattr(self, name, NOTHING))) + ) + return "".join(result) + ")" + finally: + already_repring.remove(id(self)) + + return __repr__ + + +def _add_repr(cls, ns=None, attrs=None): + """ + Add a repr method to *cls*. + """ + if attrs is None: + attrs = cls.__attrs_attrs__ + + cls.__repr__ = _make_repr(attrs, ns, cls) + return cls + + +def fields(cls): + """ + Return the tuple of ``attrs`` attributes for a class. + + The tuple also allows accessing the fields by their names (see below for + examples). + + :param type cls: Class to introspect. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + :rtype: tuple (with name accessors) of `attrs.Attribute` + + .. versionchanged:: 16.2.0 Returned tuple allows accessing the fields + by name. + """ + if not isclass(cls): + raise TypeError("Passed object must be a class.") + attrs = getattr(cls, "__attrs_attrs__", None) + if attrs is None: + raise NotAnAttrsClassError( + "{cls!r} is not an attrs-decorated class.".format(cls=cls) + ) + return attrs + + +def fields_dict(cls): + """ + Return an ordered dictionary of ``attrs`` attributes for a class, whose + keys are the attribute names. + + :param type cls: Class to introspect. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + :rtype: an ordered dict where keys are attribute names and values are + `attrs.Attribute`\\ s. This will be a `dict` if it's + naturally ordered like on Python 3.6+ or an + :class:`~collections.OrderedDict` otherwise. + + .. versionadded:: 18.1.0 + """ + if not isclass(cls): + raise TypeError("Passed object must be a class.") + attrs = getattr(cls, "__attrs_attrs__", None) + if attrs is None: + raise NotAnAttrsClassError( + "{cls!r} is not an attrs-decorated class.".format(cls=cls) + ) + return ordered_dict(((a.name, a) for a in attrs)) + + +def validate(inst): + """ + Validate all attributes on *inst* that have a validator. + + Leaves all exceptions through. + + :param inst: Instance of a class with ``attrs`` attributes. + """ + if _config._run_validators is False: + return + + for a in fields(inst.__class__): + v = a.validator + if v is not None: + v(inst, a, getattr(inst, a.name)) + + +def _is_slot_cls(cls): + return "__slots__" in cls.__dict__ + + +def _is_slot_attr(a_name, base_attr_map): + """ + Check if the attribute name comes from a slot class. + """ + return a_name in base_attr_map and _is_slot_cls(base_attr_map[a_name]) + + +def _make_init( + cls, + attrs, + pre_init, + post_init, + frozen, + slots, + cache_hash, + base_attr_map, + is_exc, + cls_on_setattr, + attrs_init, +): + has_cls_on_setattr = ( + cls_on_setattr is not None and cls_on_setattr is not setters.NO_OP + ) + + if frozen and has_cls_on_setattr: + raise ValueError("Frozen classes can't use on_setattr.") + + needs_cached_setattr = cache_hash or frozen + filtered_attrs = [] + attr_dict = {} + for a in attrs: + if not a.init and a.default is NOTHING: + continue + + filtered_attrs.append(a) + attr_dict[a.name] = a + + if a.on_setattr is not None: + if frozen is True: + raise ValueError("Frozen classes can't use on_setattr.") + + needs_cached_setattr = True + elif has_cls_on_setattr and a.on_setattr is not setters.NO_OP: + needs_cached_setattr = True + + unique_filename = _generate_unique_filename(cls, "init") + + script, globs, annotations = _attrs_to_init_script( + filtered_attrs, + frozen, + slots, + pre_init, + post_init, + cache_hash, + base_attr_map, + is_exc, + needs_cached_setattr, + has_cls_on_setattr, + attrs_init, + ) + if cls.__module__ in sys.modules: + # This makes typing.get_type_hints(CLS.__init__) resolve string types. + globs.update(sys.modules[cls.__module__].__dict__) + + globs.update({"NOTHING": NOTHING, "attr_dict": attr_dict}) + + if needs_cached_setattr: + # Save the lookup overhead in __init__ if we need to circumvent + # setattr hooks. + globs["_cached_setattr"] = _obj_setattr + + init = _make_method( + "__attrs_init__" if attrs_init else "__init__", + script, + unique_filename, + globs, + ) + init.__annotations__ = annotations + + return init + + +def _setattr(attr_name, value_var, has_on_setattr): + """ + Use the cached object.setattr to set *attr_name* to *value_var*. + """ + return "_setattr('%s', %s)" % (attr_name, value_var) + + +def _setattr_with_converter(attr_name, value_var, has_on_setattr): + """ + Use the cached object.setattr to set *attr_name* to *value_var*, but run + its converter first. + """ + return "_setattr('%s', %s(%s))" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + +def _assign(attr_name, value, has_on_setattr): + """ + Unless *attr_name* has an on_setattr hook, use normal assignment. Otherwise + relegate to _setattr. + """ + if has_on_setattr: + return _setattr(attr_name, value, True) + + return "self.%s = %s" % (attr_name, value) + + +def _assign_with_converter(attr_name, value_var, has_on_setattr): + """ + Unless *attr_name* has an on_setattr hook, use normal assignment after + conversion. Otherwise relegate to _setattr_with_converter. + """ + if has_on_setattr: + return _setattr_with_converter(attr_name, value_var, True) + + return "self.%s = %s(%s)" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + +if PY2: + + def _unpack_kw_only_py2(attr_name, default=None): + """ + Unpack *attr_name* from _kw_only dict. + """ + if default is not None: + arg_default = ", %s" % default + else: + arg_default = "" + return "%s = _kw_only.pop('%s'%s)" % ( + attr_name, + attr_name, + arg_default, + ) + + def _unpack_kw_only_lines_py2(kw_only_args): + """ + Unpack all *kw_only_args* from _kw_only dict and handle errors. + + Given a list of strings "{attr_name}" and "{attr_name}={default}" + generates list of lines of code that pop attrs from _kw_only dict and + raise TypeError similar to builtin if required attr is missing or + extra key is passed. + + >>> print("\n".join(_unpack_kw_only_lines_py2(["a", "b=42"]))) + try: + a = _kw_only.pop('a') + b = _kw_only.pop('b', 42) + except KeyError as _key_error: + raise TypeError( + ... + if _kw_only: + raise TypeError( + ... + """ + lines = ["try:"] + lines.extend( + " " + _unpack_kw_only_py2(*arg.split("=")) + for arg in kw_only_args + ) + lines += """\ +except KeyError as _key_error: + raise TypeError( + '__init__() missing required keyword-only argument: %s' % _key_error + ) +if _kw_only: + raise TypeError( + '__init__() got an unexpected keyword argument %r' + % next(iter(_kw_only)) + ) +""".split( + "\n" + ) + return lines + + +def _attrs_to_init_script( + attrs, + frozen, + slots, + pre_init, + post_init, + cache_hash, + base_attr_map, + is_exc, + needs_cached_setattr, + has_cls_on_setattr, + attrs_init, +): + """ + Return a script of an initializer for *attrs* and a dict of globals. + + The globals are expected by the generated script. + + If *frozen* is True, we cannot set the attributes directly so we use + a cached ``object.__setattr__``. + """ + lines = [] + if pre_init: + lines.append("self.__attrs_pre_init__()") + + if needs_cached_setattr: + lines.append( + # Circumvent the __setattr__ descriptor to save one lookup per + # assignment. + # Note _setattr will be used again below if cache_hash is True + "_setattr = _cached_setattr.__get__(self, self.__class__)" + ) + + if frozen is True: + if slots is True: + fmt_setter = _setattr + fmt_setter_with_converter = _setattr_with_converter + else: + # Dict frozen classes assign directly to __dict__. + # But only if the attribute doesn't come from an ancestor slot + # class. + # Note _inst_dict will be used again below if cache_hash is True + lines.append("_inst_dict = self.__dict__") + + def fmt_setter(attr_name, value_var, has_on_setattr): + if _is_slot_attr(attr_name, base_attr_map): + return _setattr(attr_name, value_var, has_on_setattr) + + return "_inst_dict['%s'] = %s" % (attr_name, value_var) + + def fmt_setter_with_converter( + attr_name, value_var, has_on_setattr + ): + if has_on_setattr or _is_slot_attr(attr_name, base_attr_map): + return _setattr_with_converter( + attr_name, value_var, has_on_setattr + ) + + return "_inst_dict['%s'] = %s(%s)" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + else: + # Not frozen. + fmt_setter = _assign + fmt_setter_with_converter = _assign_with_converter + + args = [] + kw_only_args = [] + attrs_to_validate = [] + + # This is a dictionary of names to validator and converter callables. + # Injecting this into __init__ globals lets us avoid lookups. + names_for_globals = {} + annotations = {"return": None} + + for a in attrs: + if a.validator: + attrs_to_validate.append(a) + + attr_name = a.name + has_on_setattr = a.on_setattr is not None or ( + a.on_setattr is not setters.NO_OP and has_cls_on_setattr + ) + arg_name = a.name.lstrip("_") + + has_factory = isinstance(a.default, Factory) + if has_factory and a.default.takes_self: + maybe_self = "self" + else: + maybe_self = "" + + if a.init is False: + if has_factory: + init_factory_name = _init_factory_pat.format(a.name) + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, + init_factory_name + "(%s)" % (maybe_self,), + has_on_setattr, + ) + ) + conv_name = _init_converter_pat % (a.name,) + names_for_globals[conv_name] = a.converter + else: + lines.append( + fmt_setter( + attr_name, + init_factory_name + "(%s)" % (maybe_self,), + has_on_setattr, + ) + ) + names_for_globals[init_factory_name] = a.default.factory + else: + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, + "attr_dict['%s'].default" % (attr_name,), + has_on_setattr, + ) + ) + conv_name = _init_converter_pat % (a.name,) + names_for_globals[conv_name] = a.converter + else: + lines.append( + fmt_setter( + attr_name, + "attr_dict['%s'].default" % (attr_name,), + has_on_setattr, + ) + ) + elif a.default is not NOTHING and not has_factory: + arg = "%s=attr_dict['%s'].default" % (arg_name, attr_name) + if a.kw_only: + kw_only_args.append(arg) + else: + args.append(arg) + + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append(fmt_setter(attr_name, arg_name, has_on_setattr)) + + elif has_factory: + arg = "%s=NOTHING" % (arg_name,) + if a.kw_only: + kw_only_args.append(arg) + else: + args.append(arg) + lines.append("if %s is not NOTHING:" % (arg_name,)) + + init_factory_name = _init_factory_pat.format(a.name) + if a.converter is not None: + lines.append( + " " + + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + lines.append("else:") + lines.append( + " " + + fmt_setter_with_converter( + attr_name, + init_factory_name + "(" + maybe_self + ")", + has_on_setattr, + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append( + " " + fmt_setter(attr_name, arg_name, has_on_setattr) + ) + lines.append("else:") + lines.append( + " " + + fmt_setter( + attr_name, + init_factory_name + "(" + maybe_self + ")", + has_on_setattr, + ) + ) + names_for_globals[init_factory_name] = a.default.factory + else: + if a.kw_only: + kw_only_args.append(arg_name) + else: + args.append(arg_name) + + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append(fmt_setter(attr_name, arg_name, has_on_setattr)) + + if a.init is True: + if a.type is not None and a.converter is None: + annotations[arg_name] = a.type + elif a.converter is not None and not PY2: + # Try to get the type from the converter. + sig = None + try: + sig = inspect.signature(a.converter) + except (ValueError, TypeError): # inspect failed + pass + if sig: + sig_params = list(sig.parameters.values()) + if ( + sig_params + and sig_params[0].annotation + is not inspect.Parameter.empty + ): + annotations[arg_name] = sig_params[0].annotation + + if attrs_to_validate: # we can skip this if there are no validators. + names_for_globals["_config"] = _config + lines.append("if _config._run_validators is True:") + for a in attrs_to_validate: + val_name = "__attr_validator_" + a.name + attr_name = "__attr_" + a.name + lines.append( + " %s(self, %s, self.%s)" % (val_name, attr_name, a.name) + ) + names_for_globals[val_name] = a.validator + names_for_globals[attr_name] = a + + if post_init: + lines.append("self.__attrs_post_init__()") + + # because this is set only after __attrs_post_init is called, a crash + # will result if post-init tries to access the hash code. This seemed + # preferable to setting this beforehand, in which case alteration to + # field values during post-init combined with post-init accessing the + # hash code would result in silent bugs. + if cache_hash: + if frozen: + if slots: + # if frozen and slots, then _setattr defined above + init_hash_cache = "_setattr('%s', %s)" + else: + # if frozen and not slots, then _inst_dict defined above + init_hash_cache = "_inst_dict['%s'] = %s" + else: + init_hash_cache = "self.%s = %s" + lines.append(init_hash_cache % (_hash_cache_field, "None")) + + # For exceptions we rely on BaseException.__init__ for proper + # initialization. + if is_exc: + vals = ",".join("self." + a.name for a in attrs if a.init) + + lines.append("BaseException.__init__(self, %s)" % (vals,)) + + args = ", ".join(args) + if kw_only_args: + if PY2: + lines = _unpack_kw_only_lines_py2(kw_only_args) + lines + + args += "%s**_kw_only" % (", " if args else "",) # leading comma + else: + args += "%s*, %s" % ( + ", " if args else "", # leading comma + ", ".join(kw_only_args), # kw_only args + ) + return ( + """\ +def {init_name}(self, {args}): + {lines} +""".format( + init_name=("__attrs_init__" if attrs_init else "__init__"), + args=args, + lines="\n ".join(lines) if lines else "pass", + ), + names_for_globals, + annotations, + ) + + +class Attribute(object): + """ + *Read-only* representation of an attribute. + + The class has *all* arguments of `attr.ib` (except for ``factory`` + which is only syntactic sugar for ``default=Factory(...)`` plus the + following: + + - ``name`` (`str`): The name of the attribute. + - ``inherited`` (`bool`): Whether or not that attribute has been inherited + from a base class. + - ``eq_key`` and ``order_key`` (`typing.Callable` or `None`): The callables + that are used for comparing and ordering objects by this attribute, + respectively. These are set by passing a callable to `attr.ib`'s ``eq``, + ``order``, or ``cmp`` arguments. See also :ref:`comparison customization + `. + + Instances of this class are frequently used for introspection purposes + like: + + - `fields` returns a tuple of them. + - Validators get them passed as the first argument. + - The :ref:`field transformer ` hook receives a list of + them. + + .. versionadded:: 20.1.0 *inherited* + .. versionadded:: 20.1.0 *on_setattr* + .. versionchanged:: 20.2.0 *inherited* is not taken into account for + equality checks and hashing anymore. + .. versionadded:: 21.1.0 *eq_key* and *order_key* + + For the full version history of the fields, see `attr.ib`. + """ + + __slots__ = ( + "name", + "default", + "validator", + "repr", + "eq", + "eq_key", + "order", + "order_key", + "hash", + "init", + "metadata", + "type", + "converter", + "kw_only", + "inherited", + "on_setattr", + ) + + def __init__( + self, + name, + default, + validator, + repr, + cmp, # XXX: unused, remove along with other cmp code. + hash, + init, + inherited, + metadata=None, + type=None, + converter=None, + kw_only=False, + eq=None, + eq_key=None, + order=None, + order_key=None, + on_setattr=None, + ): + eq, eq_key, order, order_key = _determine_attrib_eq_order( + cmp, eq_key or eq, order_key or order, True + ) + + # Cache this descriptor here to speed things up later. + bound_setattr = _obj_setattr.__get__(self, Attribute) + + # Despite the big red warning, people *do* instantiate `Attribute` + # themselves. + bound_setattr("name", name) + bound_setattr("default", default) + bound_setattr("validator", validator) + bound_setattr("repr", repr) + bound_setattr("eq", eq) + bound_setattr("eq_key", eq_key) + bound_setattr("order", order) + bound_setattr("order_key", order_key) + bound_setattr("hash", hash) + bound_setattr("init", init) + bound_setattr("converter", converter) + bound_setattr( + "metadata", + ( + metadata_proxy(metadata) + if metadata + else _empty_metadata_singleton + ), + ) + bound_setattr("type", type) + bound_setattr("kw_only", kw_only) + bound_setattr("inherited", inherited) + bound_setattr("on_setattr", on_setattr) + + def __setattr__(self, name, value): + raise FrozenInstanceError() + + @classmethod + def from_counting_attr(cls, name, ca, type=None): + # type holds the annotated value. deal with conflicts: + if type is None: + type = ca.type + elif ca.type is not None: + raise ValueError( + "Type annotation and type argument cannot both be present" + ) + inst_dict = { + k: getattr(ca, k) + for k in Attribute.__slots__ + if k + not in ( + "name", + "validator", + "default", + "type", + "inherited", + ) # exclude methods and deprecated alias + } + return cls( + name=name, + validator=ca._validator, + default=ca._default, + type=type, + cmp=None, + inherited=False, + **inst_dict + ) + + @property + def cmp(self): + """ + Simulate the presence of a cmp attribute and warn. + """ + warnings.warn(_CMP_DEPRECATION, DeprecationWarning, stacklevel=2) + + return self.eq and self.order + + # Don't use attr.evolve since fields(Attribute) doesn't work + def evolve(self, **changes): + """ + Copy *self* and apply *changes*. + + This works similarly to `attr.evolve` but that function does not work + with ``Attribute``. + + It is mainly meant to be used for `transform-fields`. + + .. versionadded:: 20.3.0 + """ + new = copy.copy(self) + + new._setattrs(changes.items()) + + return new + + # Don't use _add_pickle since fields(Attribute) doesn't work + def __getstate__(self): + """ + Play nice with pickle. + """ + return tuple( + getattr(self, name) if name != "metadata" else dict(self.metadata) + for name in self.__slots__ + ) + + def __setstate__(self, state): + """ + Play nice with pickle. + """ + self._setattrs(zip(self.__slots__, state)) + + def _setattrs(self, name_values_pairs): + bound_setattr = _obj_setattr.__get__(self, Attribute) + for name, value in name_values_pairs: + if name != "metadata": + bound_setattr(name, value) + else: + bound_setattr( + name, + metadata_proxy(value) + if value + else _empty_metadata_singleton, + ) + + +_a = [ + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + eq=True, + order=False, + hash=(name != "metadata"), + init=True, + inherited=False, + ) + for name in Attribute.__slots__ +] + +Attribute = _add_hash( + _add_eq( + _add_repr(Attribute, attrs=_a), + attrs=[a for a in _a if a.name != "inherited"], + ), + attrs=[a for a in _a if a.hash and a.name != "inherited"], +) + + +class _CountingAttr(object): + """ + Intermediate representation of attributes that uses a counter to preserve + the order in which the attributes have been defined. + + *Internal* data structure of the attrs library. Running into is most + likely the result of a bug like a forgotten `@attr.s` decorator. + """ + + __slots__ = ( + "counter", + "_default", + "repr", + "eq", + "eq_key", + "order", + "order_key", + "hash", + "init", + "metadata", + "_validator", + "converter", + "type", + "kw_only", + "on_setattr", + ) + __attrs_attrs__ = tuple( + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + hash=True, + init=True, + kw_only=False, + eq=True, + eq_key=None, + order=False, + order_key=None, + inherited=False, + on_setattr=None, + ) + for name in ( + "counter", + "_default", + "repr", + "eq", + "order", + "hash", + "init", + "on_setattr", + ) + ) + ( + Attribute( + name="metadata", + default=None, + validator=None, + repr=True, + cmp=None, + hash=False, + init=True, + kw_only=False, + eq=True, + eq_key=None, + order=False, + order_key=None, + inherited=False, + on_setattr=None, + ), + ) + cls_counter = 0 + + def __init__( + self, + default, + validator, + repr, + cmp, + hash, + init, + converter, + metadata, + type, + kw_only, + eq, + eq_key, + order, + order_key, + on_setattr, + ): + _CountingAttr.cls_counter += 1 + self.counter = _CountingAttr.cls_counter + self._default = default + self._validator = validator + self.converter = converter + self.repr = repr + self.eq = eq + self.eq_key = eq_key + self.order = order + self.order_key = order_key + self.hash = hash + self.init = init + self.metadata = metadata + self.type = type + self.kw_only = kw_only + self.on_setattr = on_setattr + + def validator(self, meth): + """ + Decorator that adds *meth* to the list of validators. + + Returns *meth* unchanged. + + .. versionadded:: 17.1.0 + """ + if self._validator is None: + self._validator = meth + else: + self._validator = and_(self._validator, meth) + return meth + + def default(self, meth): + """ + Decorator that allows to set the default for an attribute. + + Returns *meth* unchanged. + + :raises DefaultAlreadySetError: If default has been set before. + + .. versionadded:: 17.1.0 + """ + if self._default is not NOTHING: + raise DefaultAlreadySetError() + + self._default = Factory(meth, takes_self=True) + + return meth + + +_CountingAttr = _add_eq(_add_repr(_CountingAttr)) + + +class Factory(object): + """ + Stores a factory callable. + + If passed as the default value to `attrs.field`, the factory is used to + generate a new value. + + :param callable factory: A callable that takes either none or exactly one + mandatory positional argument depending on *takes_self*. + :param bool takes_self: Pass the partially initialized instance that is + being initialized as a positional argument. + + .. versionadded:: 17.1.0 *takes_self* + """ + + __slots__ = ("factory", "takes_self") + + def __init__(self, factory, takes_self=False): + """ + `Factory` is part of the default machinery so if we want a default + value here, we have to implement it ourselves. + """ + self.factory = factory + self.takes_self = takes_self + + def __getstate__(self): + """ + Play nice with pickle. + """ + return tuple(getattr(self, name) for name in self.__slots__) + + def __setstate__(self, state): + """ + Play nice with pickle. + """ + for name, value in zip(self.__slots__, state): + setattr(self, name, value) + + +_f = [ + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + eq=True, + order=False, + hash=True, + init=True, + inherited=False, + ) + for name in Factory.__slots__ +] + +Factory = _add_hash(_add_eq(_add_repr(Factory, attrs=_f), attrs=_f), attrs=_f) + + +def make_class(name, attrs, bases=(object,), **attributes_arguments): + """ + A quick way to create a new class called *name* with *attrs*. + + :param str name: The name for the new class. + + :param attrs: A list of names or a dictionary of mappings of names to + attributes. + + If *attrs* is a list or an ordered dict (`dict` on Python 3.6+, + `collections.OrderedDict` otherwise), the order is deduced from + the order of the names or attributes inside *attrs*. Otherwise the + order of the definition of the attributes is used. + :type attrs: `list` or `dict` + + :param tuple bases: Classes that the new class will subclass. + + :param attributes_arguments: Passed unmodified to `attr.s`. + + :return: A new class with *attrs*. + :rtype: type + + .. versionadded:: 17.1.0 *bases* + .. versionchanged:: 18.1.0 If *attrs* is ordered, the order is retained. + """ + if isinstance(attrs, dict): + cls_dict = attrs + elif isinstance(attrs, (list, tuple)): + cls_dict = dict((a, attrib()) for a in attrs) + else: + raise TypeError("attrs argument must be a dict or a list.") + + pre_init = cls_dict.pop("__attrs_pre_init__", None) + post_init = cls_dict.pop("__attrs_post_init__", None) + user_init = cls_dict.pop("__init__", None) + + body = {} + if pre_init is not None: + body["__attrs_pre_init__"] = pre_init + if post_init is not None: + body["__attrs_post_init__"] = post_init + if user_init is not None: + body["__init__"] = user_init + + type_ = new_class(name, bases, {}, lambda ns: ns.update(body)) + + # For pickling to work, the __module__ variable needs to be set to the + # frame where the class is created. Bypass this step in environments where + # sys._getframe is not defined (Jython for example) or sys._getframe is not + # defined for arguments greater than 0 (IronPython). + try: + type_.__module__ = sys._getframe(1).f_globals.get( + "__name__", "__main__" + ) + except (AttributeError, ValueError): + pass + + # We do it here for proper warnings with meaningful stacklevel. + cmp = attributes_arguments.pop("cmp", None) + ( + attributes_arguments["eq"], + attributes_arguments["order"], + ) = _determine_attrs_eq_order( + cmp, + attributes_arguments.get("eq"), + attributes_arguments.get("order"), + True, + ) + + return _attrs(these=cls_dict, **attributes_arguments)(type_) + + +# These are required by within this module so we define them here and merely +# import into .validators / .converters. + + +@attrs(slots=True, hash=True) +class _AndValidator(object): + """ + Compose many validators to a single one. + """ + + _validators = attrib() + + def __call__(self, inst, attr, value): + for v in self._validators: + v(inst, attr, value) + + +def and_(*validators): + """ + A validator that composes multiple validators into one. + + When called on a value, it runs all wrapped validators. + + :param callables validators: Arbitrary number of validators. + + .. versionadded:: 17.1.0 + """ + vals = [] + for validator in validators: + vals.extend( + validator._validators + if isinstance(validator, _AndValidator) + else [validator] + ) + + return _AndValidator(tuple(vals)) + + +def pipe(*converters): + """ + A converter that composes multiple converters into one. + + When called on a value, it runs all wrapped converters, returning the + *last* value. + + Type annotations will be inferred from the wrapped converters', if + they have any. + + :param callables converters: Arbitrary number of converters. + + .. versionadded:: 20.1.0 + """ + + def pipe_converter(val): + for converter in converters: + val = converter(val) + + return val + + if not PY2: + if not converters: + # If the converter list is empty, pipe_converter is the identity. + A = typing.TypeVar("A") + pipe_converter.__annotations__ = {"val": A, "return": A} + else: + # Get parameter type. + sig = None + try: + sig = inspect.signature(converters[0]) + except (ValueError, TypeError): # inspect failed + pass + if sig: + params = list(sig.parameters.values()) + if ( + params + and params[0].annotation is not inspect.Parameter.empty + ): + pipe_converter.__annotations__["val"] = params[ + 0 + ].annotation + # Get return type. + sig = None + try: + sig = inspect.signature(converters[-1]) + except (ValueError, TypeError): # inspect failed + pass + if sig and sig.return_annotation is not inspect.Signature().empty: + pipe_converter.__annotations__[ + "return" + ] = sig.return_annotation + + return pipe_converter diff --git a/src/licensedcode/_vendor/attr/_next_gen.py b/src/licensedcode/_vendor/attr/_next_gen.py new file mode 100644 index 00000000000..068253688ca --- /dev/null +++ b/src/licensedcode/_vendor/attr/_next_gen.py @@ -0,0 +1,216 @@ +# SPDX-License-Identifier: MIT + +""" +These are Python 3.6+-only and keyword-only APIs that call `attr.s` and +`attr.ib` with different default values. +""" + + +from functools import partial + +from . import setters +from ._funcs import asdict as _asdict +from ._funcs import astuple as _astuple +from ._make import ( + NOTHING, + _frozen_setattrs, + _ng_default_on_setattr, + attrib, + attrs, +) +from .exceptions import UnannotatedAttributeError + + +def define( + maybe_cls=None, + *, + these=None, + repr=None, + hash=None, + init=None, + slots=True, + frozen=False, + weakref_slot=True, + str=False, + auto_attribs=None, + kw_only=False, + cache_hash=False, + auto_exc=True, + eq=None, + order=False, + auto_detect=True, + getstate_setstate=None, + on_setattr=None, + field_transformer=None, + match_args=True, +): + r""" + Define an ``attrs`` class. + + Differences to the classic `attr.s` that it uses underneath: + + - Automatically detect whether or not *auto_attribs* should be `True` + (c.f. *auto_attribs* parameter). + - If *frozen* is `False`, run converters and validators when setting an + attribute by default. + - *slots=True* (see :term:`slotted classes` for potentially surprising + behaviors) + - *auto_exc=True* + - *auto_detect=True* + - *order=False* + - *match_args=True* + - Some options that were only relevant on Python 2 or were kept around for + backwards-compatibility have been removed. + + Please note that these are all defaults and you can change them as you + wish. + + :param Optional[bool] auto_attribs: If set to `True` or `False`, it behaves + exactly like `attr.s`. If left `None`, `attr.s` will try to guess: + + 1. If any attributes are annotated and no unannotated `attrs.fields`\ s + are found, it assumes *auto_attribs=True*. + 2. Otherwise it assumes *auto_attribs=False* and tries to collect + `attrs.fields`\ s. + + For now, please refer to `attr.s` for the rest of the parameters. + + .. versionadded:: 20.1.0 + .. versionchanged:: 21.3.0 Converters are also run ``on_setattr``. + """ + + def do_it(cls, auto_attribs): + return attrs( + maybe_cls=cls, + these=these, + repr=repr, + hash=hash, + init=init, + slots=slots, + frozen=frozen, + weakref_slot=weakref_slot, + str=str, + auto_attribs=auto_attribs, + kw_only=kw_only, + cache_hash=cache_hash, + auto_exc=auto_exc, + eq=eq, + order=order, + auto_detect=auto_detect, + collect_by_mro=True, + getstate_setstate=getstate_setstate, + on_setattr=on_setattr, + field_transformer=field_transformer, + match_args=match_args, + ) + + def wrap(cls): + """ + Making this a wrapper ensures this code runs during class creation. + + We also ensure that frozen-ness of classes is inherited. + """ + nonlocal frozen, on_setattr + + had_on_setattr = on_setattr not in (None, setters.NO_OP) + + # By default, mutable classes convert & validate on setattr. + if frozen is False and on_setattr is None: + on_setattr = _ng_default_on_setattr + + # However, if we subclass a frozen class, we inherit the immutability + # and disable on_setattr. + for base_cls in cls.__bases__: + if base_cls.__setattr__ is _frozen_setattrs: + if had_on_setattr: + raise ValueError( + "Frozen classes can't use on_setattr " + "(frozen-ness was inherited)." + ) + + on_setattr = setters.NO_OP + break + + if auto_attribs is not None: + return do_it(cls, auto_attribs) + + try: + return do_it(cls, True) + except UnannotatedAttributeError: + return do_it(cls, False) + + # maybe_cls's type depends on the usage of the decorator. It's a class + # if it's used as `@attrs` but ``None`` if used as `@attrs()`. + if maybe_cls is None: + return wrap + else: + return wrap(maybe_cls) + + +mutable = define +frozen = partial(define, frozen=True, on_setattr=None) + + +def field( + *, + default=NOTHING, + validator=None, + repr=True, + hash=None, + init=True, + metadata=None, + converter=None, + factory=None, + kw_only=False, + eq=None, + order=None, + on_setattr=None, +): + """ + Identical to `attr.ib`, except keyword-only and with some arguments + removed. + + .. versionadded:: 20.1.0 + """ + return attrib( + default=default, + validator=validator, + repr=repr, + hash=hash, + init=init, + metadata=metadata, + converter=converter, + factory=factory, + kw_only=kw_only, + eq=eq, + order=order, + on_setattr=on_setattr, + ) + + +def asdict(inst, *, recurse=True, filter=None, value_serializer=None): + """ + Same as `attr.asdict`, except that collections types are always retained + and dict is always used as *dict_factory*. + + .. versionadded:: 21.3.0 + """ + return _asdict( + inst=inst, + recurse=recurse, + filter=filter, + value_serializer=value_serializer, + retain_collection_types=True, + ) + + +def astuple(inst, *, recurse=True, filter=None): + """ + Same as `attr.astuple`, except that collections types are always retained + and `tuple` is always used as the *tuple_factory*. + + .. versionadded:: 21.3.0 + """ + return _astuple( + inst=inst, recurse=recurse, filter=filter, retain_collection_types=True + ) diff --git a/src/licensedcode/_vendor/attr/_version_info.py b/src/licensedcode/_vendor/attr/_version_info.py new file mode 100644 index 00000000000..cdaeec37a1a --- /dev/null +++ b/src/licensedcode/_vendor/attr/_version_info.py @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + +from functools import total_ordering + +from ._funcs import astuple +from ._make import attrib, attrs + + +@total_ordering +@attrs(eq=False, order=False, slots=True, frozen=True) +class VersionInfo(object): + """ + A version object that can be compared to tuple of length 1--4: + + >>> attr.VersionInfo(19, 1, 0, "final") <= (19, 2) + True + >>> attr.VersionInfo(19, 1, 0, "final") < (19, 1, 1) + True + >>> vi = attr.VersionInfo(19, 2, 0, "final") + >>> vi < (19, 1, 1) + False + >>> vi < (19,) + False + >>> vi == (19, 2,) + True + >>> vi == (19, 2, 1) + False + + .. versionadded:: 19.2 + """ + + year = attrib(type=int) + minor = attrib(type=int) + micro = attrib(type=int) + releaselevel = attrib(type=str) + + @classmethod + def _from_version_string(cls, s): + """ + Parse *s* and return a _VersionInfo. + """ + v = s.split(".") + if len(v) == 3: + v.append("final") + + return cls( + year=int(v[0]), minor=int(v[1]), micro=int(v[2]), releaselevel=v[3] + ) + + def _ensure_tuple(self, other): + """ + Ensure *other* is a tuple of a valid length. + + Returns a possibly transformed *other* and ourselves as a tuple of + the same length as *other*. + """ + + if self.__class__ is other.__class__: + other = astuple(other) + + if not isinstance(other, tuple): + raise NotImplementedError + + if not (1 <= len(other) <= 4): + raise NotImplementedError + + return astuple(self)[: len(other)], other + + def __eq__(self, other): + try: + us, them = self._ensure_tuple(other) + except NotImplementedError: + return NotImplemented + + return us == them + + def __lt__(self, other): + try: + us, them = self._ensure_tuple(other) + except NotImplementedError: + return NotImplemented + + # Since alphabetically "dev0" < "final" < "post1" < "post2", we don't + # have to do anything special with releaselevel for now. + return us < them diff --git a/src/licensedcode/_vendor/attr/_version_info.pyi b/src/licensedcode/_vendor/attr/_version_info.pyi new file mode 100644 index 00000000000..45ced086337 --- /dev/null +++ b/src/licensedcode/_vendor/attr/_version_info.pyi @@ -0,0 +1,9 @@ +class VersionInfo: + @property + def year(self) -> int: ... + @property + def minor(self) -> int: ... + @property + def micro(self) -> int: ... + @property + def releaselevel(self) -> str: ... diff --git a/src/licensedcode/_vendor/attr/converters.py b/src/licensedcode/_vendor/attr/converters.py new file mode 100644 index 00000000000..1fb6c05d7bb --- /dev/null +++ b/src/licensedcode/_vendor/attr/converters.py @@ -0,0 +1,155 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful converters. +""" + +from __future__ import absolute_import, division, print_function + +from ._compat import PY2 +from ._make import NOTHING, Factory, pipe + + +if not PY2: + import inspect + import typing + + +__all__ = [ + "default_if_none", + "optional", + "pipe", + "to_bool", +] + + +def optional(converter): + """ + A converter that allows an attribute to be optional. An optional attribute + is one which can be set to ``None``. + + Type annotations will be inferred from the wrapped converter's, if it + has any. + + :param callable converter: the converter that is used for non-``None`` + values. + + .. versionadded:: 17.1.0 + """ + + def optional_converter(val): + if val is None: + return None + return converter(val) + + if not PY2: + sig = None + try: + sig = inspect.signature(converter) + except (ValueError, TypeError): # inspect failed + pass + if sig: + params = list(sig.parameters.values()) + if params and params[0].annotation is not inspect.Parameter.empty: + optional_converter.__annotations__["val"] = typing.Optional[ + params[0].annotation + ] + if sig.return_annotation is not inspect.Signature.empty: + optional_converter.__annotations__["return"] = typing.Optional[ + sig.return_annotation + ] + + return optional_converter + + +def default_if_none(default=NOTHING, factory=None): + """ + A converter that allows to replace ``None`` values by *default* or the + result of *factory*. + + :param default: Value to be used if ``None`` is passed. Passing an instance + of `attrs.Factory` is supported, however the ``takes_self`` option + is *not*. + :param callable factory: A callable that takes no parameters whose result + is used if ``None`` is passed. + + :raises TypeError: If **neither** *default* or *factory* is passed. + :raises TypeError: If **both** *default* and *factory* are passed. + :raises ValueError: If an instance of `attrs.Factory` is passed with + ``takes_self=True``. + + .. versionadded:: 18.2.0 + """ + if default is NOTHING and factory is None: + raise TypeError("Must pass either `default` or `factory`.") + + if default is not NOTHING and factory is not None: + raise TypeError( + "Must pass either `default` or `factory` but not both." + ) + + if factory is not None: + default = Factory(factory) + + if isinstance(default, Factory): + if default.takes_self: + raise ValueError( + "`takes_self` is not supported by default_if_none." + ) + + def default_if_none_converter(val): + if val is not None: + return val + + return default.factory() + + else: + + def default_if_none_converter(val): + if val is not None: + return val + + return default + + return default_if_none_converter + + +def to_bool(val): + """ + Convert "boolean" strings (e.g., from env. vars.) to real booleans. + + Values mapping to :code:`True`: + + - :code:`True` + - :code:`"true"` / :code:`"t"` + - :code:`"yes"` / :code:`"y"` + - :code:`"on"` + - :code:`"1"` + - :code:`1` + + Values mapping to :code:`False`: + + - :code:`False` + - :code:`"false"` / :code:`"f"` + - :code:`"no"` / :code:`"n"` + - :code:`"off"` + - :code:`"0"` + - :code:`0` + + :raises ValueError: for any other value. + + .. versionadded:: 21.3.0 + """ + if isinstance(val, str): + val = val.lower() + truthy = {True, "true", "t", "yes", "y", "on", "1", 1} + falsy = {False, "false", "f", "no", "n", "off", "0", 0} + try: + if val in truthy: + return True + if val in falsy: + return False + except TypeError: + # Raised when "val" is not hashable (e.g., lists) + pass + raise ValueError("Cannot convert value to bool: {}".format(val)) diff --git a/src/licensedcode/_vendor/attr/converters.pyi b/src/licensedcode/_vendor/attr/converters.pyi new file mode 100644 index 00000000000..0f58088a37b --- /dev/null +++ b/src/licensedcode/_vendor/attr/converters.pyi @@ -0,0 +1,13 @@ +from typing import Callable, Optional, TypeVar, overload + +from . import _ConverterType + +_T = TypeVar("_T") + +def pipe(*validators: _ConverterType) -> _ConverterType: ... +def optional(converter: _ConverterType) -> _ConverterType: ... +@overload +def default_if_none(default: _T) -> _ConverterType: ... +@overload +def default_if_none(*, factory: Callable[[], _T]) -> _ConverterType: ... +def to_bool(val: str) -> bool: ... diff --git a/src/licensedcode/_vendor/attr/exceptions.py b/src/licensedcode/_vendor/attr/exceptions.py new file mode 100644 index 00000000000..b2f1edc32a9 --- /dev/null +++ b/src/licensedcode/_vendor/attr/exceptions.py @@ -0,0 +1,94 @@ +# SPDX-License-Identifier: MIT + +from __future__ import absolute_import, division, print_function + + +class FrozenError(AttributeError): + """ + A frozen/immutable instance or attribute have been attempted to be + modified. + + It mirrors the behavior of ``namedtuples`` by using the same error message + and subclassing `AttributeError`. + + .. versionadded:: 20.1.0 + """ + + msg = "can't set attribute" + args = [msg] + + +class FrozenInstanceError(FrozenError): + """ + A frozen instance has been attempted to be modified. + + .. versionadded:: 16.1.0 + """ + + +class FrozenAttributeError(FrozenError): + """ + A frozen attribute has been attempted to be modified. + + .. versionadded:: 20.1.0 + """ + + +class AttrsAttributeNotFoundError(ValueError): + """ + An ``attrs`` function couldn't find an attribute that the user asked for. + + .. versionadded:: 16.2.0 + """ + + +class NotAnAttrsClassError(ValueError): + """ + A non-``attrs`` class has been passed into an ``attrs`` function. + + .. versionadded:: 16.2.0 + """ + + +class DefaultAlreadySetError(RuntimeError): + """ + A default has been set using ``attr.ib()`` and is attempted to be reset + using the decorator. + + .. versionadded:: 17.1.0 + """ + + +class UnannotatedAttributeError(RuntimeError): + """ + A class with ``auto_attribs=True`` has an ``attr.ib()`` without a type + annotation. + + .. versionadded:: 17.3.0 + """ + + +class PythonTooOldError(RuntimeError): + """ + It was attempted to use an ``attrs`` feature that requires a newer Python + version. + + .. versionadded:: 18.2.0 + """ + + +class NotCallableError(TypeError): + """ + A ``attr.ib()`` requiring a callable has been set with a value + that is not callable. + + .. versionadded:: 19.2.0 + """ + + def __init__(self, msg, value): + super(TypeError, self).__init__(msg, value) + self.msg = msg + self.value = value + + def __str__(self): + return str(self.msg) diff --git a/src/licensedcode/_vendor/attr/exceptions.pyi b/src/licensedcode/_vendor/attr/exceptions.pyi new file mode 100644 index 00000000000..f2680118b40 --- /dev/null +++ b/src/licensedcode/_vendor/attr/exceptions.pyi @@ -0,0 +1,17 @@ +from typing import Any + +class FrozenError(AttributeError): + msg: str = ... + +class FrozenInstanceError(FrozenError): ... +class FrozenAttributeError(FrozenError): ... +class AttrsAttributeNotFoundError(ValueError): ... +class NotAnAttrsClassError(ValueError): ... +class DefaultAlreadySetError(RuntimeError): ... +class UnannotatedAttributeError(RuntimeError): ... +class PythonTooOldError(RuntimeError): ... + +class NotCallableError(TypeError): + msg: str = ... + value: Any = ... + def __init__(self, msg: str, value: Any) -> None: ... diff --git a/src/licensedcode/_vendor/attr/filters.py b/src/licensedcode/_vendor/attr/filters.py new file mode 100644 index 00000000000..a1978a87755 --- /dev/null +++ b/src/licensedcode/_vendor/attr/filters.py @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful filters for `attr.asdict`. +""" + +from __future__ import absolute_import, division, print_function + +from ._compat import isclass +from ._make import Attribute + + +def _split_what(what): + """ + Returns a tuple of `frozenset`s of classes and attributes. + """ + return ( + frozenset(cls for cls in what if isclass(cls)), + frozenset(cls for cls in what if isinstance(cls, Attribute)), + ) + + +def include(*what): + """ + Include *what*. + + :param what: What to include. + :type what: `list` of `type` or `attrs.Attribute`\\ s + + :rtype: `callable` + """ + cls, attrs = _split_what(what) + + def include_(attribute, value): + return value.__class__ in cls or attribute in attrs + + return include_ + + +def exclude(*what): + """ + Exclude *what*. + + :param what: What to exclude. + :type what: `list` of classes or `attrs.Attribute`\\ s. + + :rtype: `callable` + """ + cls, attrs = _split_what(what) + + def exclude_(attribute, value): + return value.__class__ not in cls and attribute not in attrs + + return exclude_ diff --git a/src/licensedcode/_vendor/attr/filters.pyi b/src/licensedcode/_vendor/attr/filters.pyi new file mode 100644 index 00000000000..993866865ea --- /dev/null +++ b/src/licensedcode/_vendor/attr/filters.pyi @@ -0,0 +1,6 @@ +from typing import Any, Union + +from . import Attribute, _FilterType + +def include(*what: Union[type, Attribute[Any]]) -> _FilterType[Any]: ... +def exclude(*what: Union[type, Attribute[Any]]) -> _FilterType[Any]: ... diff --git a/src/licensedcode/_vendor/attr/py.typed b/src/licensedcode/_vendor/attr/py.typed new file mode 100644 index 00000000000..e69de29bb2d diff --git a/src/licensedcode/_vendor/attr/setters.py b/src/licensedcode/_vendor/attr/setters.py new file mode 100644 index 00000000000..b1cbb5d83e7 --- /dev/null +++ b/src/licensedcode/_vendor/attr/setters.py @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly used hooks for on_setattr. +""" + +from __future__ import absolute_import, division, print_function + +from . import _config +from .exceptions import FrozenAttributeError + + +def pipe(*setters): + """ + Run all *setters* and return the return value of the last one. + + .. versionadded:: 20.1.0 + """ + + def wrapped_pipe(instance, attrib, new_value): + rv = new_value + + for setter in setters: + rv = setter(instance, attrib, rv) + + return rv + + return wrapped_pipe + + +def frozen(_, __, ___): + """ + Prevent an attribute to be modified. + + .. versionadded:: 20.1.0 + """ + raise FrozenAttributeError() + + +def validate(instance, attrib, new_value): + """ + Run *attrib*'s validator on *new_value* if it has one. + + .. versionadded:: 20.1.0 + """ + if _config._run_validators is False: + return new_value + + v = attrib.validator + if not v: + return new_value + + v(instance, attrib, new_value) + + return new_value + + +def convert(instance, attrib, new_value): + """ + Run *attrib*'s converter -- if it has one -- on *new_value* and return the + result. + + .. versionadded:: 20.1.0 + """ + c = attrib.converter + if c: + return c(new_value) + + return new_value + + +NO_OP = object() +""" +Sentinel for disabling class-wide *on_setattr* hooks for certain attributes. + +Does not work in `pipe` or within lists. + +.. versionadded:: 20.1.0 +""" diff --git a/src/licensedcode/_vendor/attr/setters.pyi b/src/licensedcode/_vendor/attr/setters.pyi new file mode 100644 index 00000000000..3f5603c2b0c --- /dev/null +++ b/src/licensedcode/_vendor/attr/setters.pyi @@ -0,0 +1,19 @@ +from typing import Any, NewType, NoReturn, TypeVar, cast + +from . import Attribute, _OnSetAttrType + +_T = TypeVar("_T") + +def frozen( + instance: Any, attribute: Attribute[Any], new_value: Any +) -> NoReturn: ... +def pipe(*setters: _OnSetAttrType) -> _OnSetAttrType: ... +def validate(instance: Any, attribute: Attribute[_T], new_value: _T) -> _T: ... + +# convert is allowed to return Any, because they can be chained using pipe. +def convert( + instance: Any, attribute: Attribute[Any], new_value: Any +) -> Any: ... + +_NoOpType = NewType("_NoOpType", object) +NO_OP: _NoOpType diff --git a/src/licensedcode/_vendor/attr/validators.py b/src/licensedcode/_vendor/attr/validators.py new file mode 100644 index 00000000000..0b0c8342f25 --- /dev/null +++ b/src/licensedcode/_vendor/attr/validators.py @@ -0,0 +1,561 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful validators. +""" + +from __future__ import absolute_import, division, print_function + +import operator +import re + +from contextlib import contextmanager + +from ._config import get_run_validators, set_run_validators +from ._make import _AndValidator, and_, attrib, attrs +from .exceptions import NotCallableError + + +try: + Pattern = re.Pattern +except AttributeError: # Python <3.7 lacks a Pattern type. + Pattern = type(re.compile("")) + + +__all__ = [ + "and_", + "deep_iterable", + "deep_mapping", + "disabled", + "ge", + "get_disabled", + "gt", + "in_", + "instance_of", + "is_callable", + "le", + "lt", + "matches_re", + "max_len", + "optional", + "provides", + "set_disabled", +] + + +def set_disabled(disabled): + """ + Globally disable or enable running validators. + + By default, they are run. + + :param disabled: If ``True``, disable running all validators. + :type disabled: bool + + .. warning:: + + This function is not thread-safe! + + .. versionadded:: 21.3.0 + """ + set_run_validators(not disabled) + + +def get_disabled(): + """ + Return a bool indicating whether validators are currently disabled or not. + + :return: ``True`` if validators are currently disabled. + :rtype: bool + + .. versionadded:: 21.3.0 + """ + return not get_run_validators() + + +@contextmanager +def disabled(): + """ + Context manager that disables running validators within its context. + + .. warning:: + + This context manager is not thread-safe! + + .. versionadded:: 21.3.0 + """ + set_run_validators(False) + try: + yield + finally: + set_run_validators(True) + + +@attrs(repr=False, slots=True, hash=True) +class _InstanceOfValidator(object): + type = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not isinstance(value, self.type): + raise TypeError( + "'{name}' must be {type!r} (got {value!r} that is a " + "{actual!r}).".format( + name=attr.name, + type=self.type, + actual=value.__class__, + value=value, + ), + attr, + self.type, + value, + ) + + def __repr__(self): + return "".format( + type=self.type + ) + + +def instance_of(type): + """ + A validator that raises a `TypeError` if the initializer is called + with a wrong type for this particular attribute (checks are performed using + `isinstance` therefore it's also valid to pass a tuple of types). + + :param type: The type to check for. + :type type: type or tuple of types + + :raises TypeError: With a human readable error message, the attribute + (of type `attrs.Attribute`), the expected type, and the value it + got. + """ + return _InstanceOfValidator(type) + + +@attrs(repr=False, frozen=True, slots=True) +class _MatchesReValidator(object): + pattern = attrib() + match_func = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.match_func(value): + raise ValueError( + "'{name}' must match regex {pattern!r}" + " ({value!r} doesn't)".format( + name=attr.name, pattern=self.pattern.pattern, value=value + ), + attr, + self.pattern, + value, + ) + + def __repr__(self): + return "".format( + pattern=self.pattern + ) + + +def matches_re(regex, flags=0, func=None): + r""" + A validator that raises `ValueError` if the initializer is called + with a string that doesn't match *regex*. + + :param regex: a regex string or precompiled pattern to match against + :param int flags: flags that will be passed to the underlying re function + (default 0) + :param callable func: which underlying `re` function to call (options + are `re.fullmatch`, `re.search`, `re.match`, default + is ``None`` which means either `re.fullmatch` or an emulation of + it on Python 2). For performance reasons, they won't be used directly + but on a pre-`re.compile`\ ed pattern. + + .. versionadded:: 19.2.0 + .. versionchanged:: 21.3.0 *regex* can be a pre-compiled pattern. + """ + fullmatch = getattr(re, "fullmatch", None) + valid_funcs = (fullmatch, None, re.search, re.match) + if func not in valid_funcs: + raise ValueError( + "'func' must be one of {}.".format( + ", ".join( + sorted( + e and e.__name__ or "None" for e in set(valid_funcs) + ) + ) + ) + ) + + if isinstance(regex, Pattern): + if flags: + raise TypeError( + "'flags' can only be used with a string pattern; " + "pass flags to re.compile() instead" + ) + pattern = regex + else: + pattern = re.compile(regex, flags) + + if func is re.match: + match_func = pattern.match + elif func is re.search: + match_func = pattern.search + elif fullmatch: + match_func = pattern.fullmatch + else: # Python 2 fullmatch emulation (https://bugs.python.org/issue16203) + pattern = re.compile( + r"(?:{})\Z".format(pattern.pattern), pattern.flags + ) + match_func = pattern.match + + return _MatchesReValidator(pattern, match_func) + + +@attrs(repr=False, slots=True, hash=True) +class _ProvidesValidator(object): + interface = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.interface.providedBy(value): + raise TypeError( + "'{name}' must provide {interface!r} which {value!r} " + "doesn't.".format( + name=attr.name, interface=self.interface, value=value + ), + attr, + self.interface, + value, + ) + + def __repr__(self): + return "".format( + interface=self.interface + ) + + +def provides(interface): + """ + A validator that raises a `TypeError` if the initializer is called + with an object that does not provide the requested *interface* (checks are + performed using ``interface.providedBy(value)`` (see `zope.interface + `_). + + :param interface: The interface to check for. + :type interface: ``zope.interface.Interface`` + + :raises TypeError: With a human readable error message, the attribute + (of type `attrs.Attribute`), the expected interface, and the + value it got. + """ + return _ProvidesValidator(interface) + + +@attrs(repr=False, slots=True, hash=True) +class _OptionalValidator(object): + validator = attrib() + + def __call__(self, inst, attr, value): + if value is None: + return + + self.validator(inst, attr, value) + + def __repr__(self): + return "".format( + what=repr(self.validator) + ) + + +def optional(validator): + """ + A validator that makes an attribute optional. An optional attribute is one + which can be set to ``None`` in addition to satisfying the requirements of + the sub-validator. + + :param validator: A validator (or a list of validators) that is used for + non-``None`` values. + :type validator: callable or `list` of callables. + + .. versionadded:: 15.1.0 + .. versionchanged:: 17.1.0 *validator* can be a list of validators. + """ + if isinstance(validator, list): + return _OptionalValidator(_AndValidator(validator)) + return _OptionalValidator(validator) + + +@attrs(repr=False, slots=True, hash=True) +class _InValidator(object): + options = attrib() + + def __call__(self, inst, attr, value): + try: + in_options = value in self.options + except TypeError: # e.g. `1 in "abc"` + in_options = False + + if not in_options: + raise ValueError( + "'{name}' must be in {options!r} (got {value!r})".format( + name=attr.name, options=self.options, value=value + ) + ) + + def __repr__(self): + return "".format( + options=self.options + ) + + +def in_(options): + """ + A validator that raises a `ValueError` if the initializer is called + with a value that does not belong in the options provided. The check is + performed using ``value in options``. + + :param options: Allowed options. + :type options: list, tuple, `enum.Enum`, ... + + :raises ValueError: With a human readable error message, the attribute (of + type `attrs.Attribute`), the expected options, and the value it + got. + + .. versionadded:: 17.1.0 + """ + return _InValidator(options) + + +@attrs(repr=False, slots=False, hash=True) +class _IsCallableValidator(object): + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not callable(value): + message = ( + "'{name}' must be callable " + "(got {value!r} that is a {actual!r})." + ) + raise NotCallableError( + msg=message.format( + name=attr.name, value=value, actual=value.__class__ + ), + value=value, + ) + + def __repr__(self): + return "" + + +def is_callable(): + """ + A validator that raises a `attr.exceptions.NotCallableError` if the + initializer is called with a value for this particular attribute + that is not callable. + + .. versionadded:: 19.1.0 + + :raises `attr.exceptions.NotCallableError`: With a human readable error + message containing the attribute (`attrs.Attribute`) name, + and the value it got. + """ + return _IsCallableValidator() + + +@attrs(repr=False, slots=True, hash=True) +class _DeepIterable(object): + member_validator = attrib(validator=is_callable()) + iterable_validator = attrib( + default=None, validator=optional(is_callable()) + ) + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if self.iterable_validator is not None: + self.iterable_validator(inst, attr, value) + + for member in value: + self.member_validator(inst, attr, member) + + def __repr__(self): + iterable_identifier = ( + "" + if self.iterable_validator is None + else " {iterable!r}".format(iterable=self.iterable_validator) + ) + return ( + "" + ).format( + iterable_identifier=iterable_identifier, + member=self.member_validator, + ) + + +def deep_iterable(member_validator, iterable_validator=None): + """ + A validator that performs deep validation of an iterable. + + :param member_validator: Validator to apply to iterable members + :param iterable_validator: Validator to apply to iterable itself + (optional) + + .. versionadded:: 19.1.0 + + :raises TypeError: if any sub-validators fail + """ + return _DeepIterable(member_validator, iterable_validator) + + +@attrs(repr=False, slots=True, hash=True) +class _DeepMapping(object): + key_validator = attrib(validator=is_callable()) + value_validator = attrib(validator=is_callable()) + mapping_validator = attrib(default=None, validator=optional(is_callable())) + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if self.mapping_validator is not None: + self.mapping_validator(inst, attr, value) + + for key in value: + self.key_validator(inst, attr, key) + self.value_validator(inst, attr, value[key]) + + def __repr__(self): + return ( + "" + ).format(key=self.key_validator, value=self.value_validator) + + +def deep_mapping(key_validator, value_validator, mapping_validator=None): + """ + A validator that performs deep validation of a dictionary. + + :param key_validator: Validator to apply to dictionary keys + :param value_validator: Validator to apply to dictionary values + :param mapping_validator: Validator to apply to top-level mapping + attribute (optional) + + .. versionadded:: 19.1.0 + + :raises TypeError: if any sub-validators fail + """ + return _DeepMapping(key_validator, value_validator, mapping_validator) + + +@attrs(repr=False, frozen=True, slots=True) +class _NumberValidator(object): + bound = attrib() + compare_op = attrib() + compare_func = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.compare_func(value, self.bound): + raise ValueError( + "'{name}' must be {op} {bound}: {value}".format( + name=attr.name, + op=self.compare_op, + bound=self.bound, + value=value, + ) + ) + + def __repr__(self): + return "".format( + op=self.compare_op, bound=self.bound + ) + + +def lt(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number larger or equal to *val*. + + :param val: Exclusive upper bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, "<", operator.lt) + + +def le(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number greater than *val*. + + :param val: Inclusive upper bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, "<=", operator.le) + + +def ge(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number smaller than *val*. + + :param val: Inclusive lower bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, ">=", operator.ge) + + +def gt(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number smaller or equal to *val*. + + :param val: Exclusive lower bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, ">", operator.gt) + + +@attrs(repr=False, frozen=True, slots=True) +class _MaxLengthValidator(object): + max_length = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if len(value) > self.max_length: + raise ValueError( + "Length of '{name}' must be <= {max}: {len}".format( + name=attr.name, max=self.max_length, len=len(value) + ) + ) + + def __repr__(self): + return "".format(max=self.max_length) + + +def max_len(length): + """ + A validator that raises `ValueError` if the initializer is called + with a string or iterable that is longer than *length*. + + :param int length: Maximum length of the string or iterable + + .. versionadded:: 21.3.0 + """ + return _MaxLengthValidator(length) diff --git a/src/licensedcode/_vendor/attr/validators.pyi b/src/licensedcode/_vendor/attr/validators.pyi new file mode 100644 index 00000000000..5e00b854339 --- /dev/null +++ b/src/licensedcode/_vendor/attr/validators.pyi @@ -0,0 +1,78 @@ +from typing import ( + Any, + AnyStr, + Callable, + Container, + ContextManager, + Iterable, + List, + Mapping, + Match, + Optional, + Pattern, + Tuple, + Type, + TypeVar, + Union, + overload, +) + +from . import _ValidatorType + +_T = TypeVar("_T") +_T1 = TypeVar("_T1") +_T2 = TypeVar("_T2") +_T3 = TypeVar("_T3") +_I = TypeVar("_I", bound=Iterable) +_K = TypeVar("_K") +_V = TypeVar("_V") +_M = TypeVar("_M", bound=Mapping) + +def set_disabled(run: bool) -> None: ... +def get_disabled() -> bool: ... +def disabled() -> ContextManager[None]: ... + +# To be more precise on instance_of use some overloads. +# If there are more than 3 items in the tuple then we fall back to Any +@overload +def instance_of(type: Type[_T]) -> _ValidatorType[_T]: ... +@overload +def instance_of(type: Tuple[Type[_T]]) -> _ValidatorType[_T]: ... +@overload +def instance_of( + type: Tuple[Type[_T1], Type[_T2]] +) -> _ValidatorType[Union[_T1, _T2]]: ... +@overload +def instance_of( + type: Tuple[Type[_T1], Type[_T2], Type[_T3]] +) -> _ValidatorType[Union[_T1, _T2, _T3]]: ... +@overload +def instance_of(type: Tuple[type, ...]) -> _ValidatorType[Any]: ... +def provides(interface: Any) -> _ValidatorType[Any]: ... +def optional( + validator: Union[_ValidatorType[_T], List[_ValidatorType[_T]]] +) -> _ValidatorType[Optional[_T]]: ... +def in_(options: Container[_T]) -> _ValidatorType[_T]: ... +def and_(*validators: _ValidatorType[_T]) -> _ValidatorType[_T]: ... +def matches_re( + regex: Union[Pattern[AnyStr], AnyStr], + flags: int = ..., + func: Optional[ + Callable[[AnyStr, AnyStr, int], Optional[Match[AnyStr]]] + ] = ..., +) -> _ValidatorType[AnyStr]: ... +def deep_iterable( + member_validator: _ValidatorType[_T], + iterable_validator: Optional[_ValidatorType[_I]] = ..., +) -> _ValidatorType[_I]: ... +def deep_mapping( + key_validator: _ValidatorType[_K], + value_validator: _ValidatorType[_V], + mapping_validator: Optional[_ValidatorType[_M]] = ..., +) -> _ValidatorType[_M]: ... +def is_callable() -> _ValidatorType[_T]: ... +def lt(val: _T) -> _ValidatorType[_T]: ... +def le(val: _T) -> _ValidatorType[_T]: ... +def ge(val: _T) -> _ValidatorType[_T]: ... +def gt(val: _T) -> _ValidatorType[_T]: ... +def max_len(length: int) -> _ValidatorType[_T]: ... diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/AUTHORS.rst b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/AUTHORS.rst new file mode 100644 index 00000000000..f14ef6c6074 --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/AUTHORS.rst @@ -0,0 +1,11 @@ +Credits +======= + +``attrs`` is written and maintained by `Hynek Schlawack `_. + +The development is kindly supported by `Variomedia AG `_. + +A full list of contributors can be found in `GitHub's overview `_. + +It’s the spiritual successor of `characteristic `_ and aspires to fix some of it clunkiness and unfortunate decisions. +Both were inspired by Twisted’s `FancyEqMixin `_ but both are implemented using class decorators because `subclassing is bad for you `_, m’kay? diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/INSTALLER b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/INSTALLER new file mode 100644 index 00000000000..a1b589e38a3 --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/LICENSE b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/LICENSE new file mode 100644 index 00000000000..7ae3df93097 --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Hynek Schlawack + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/METADATA b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/METADATA new file mode 100644 index 00000000000..aa327d5e1ff --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/METADATA @@ -0,0 +1,232 @@ +Metadata-Version: 2.1 +Name: attrs +Version: 21.4.0 +Summary: Classes Without Boilerplate +Home-page: https://www.attrs.org/ +Author: Hynek Schlawack +Author-email: hs@ox.cx +Maintainer: Hynek Schlawack +Maintainer-email: hs@ox.cx +License: MIT +Project-URL: Documentation, https://www.attrs.org/ +Project-URL: Changelog, https://www.attrs.org/en/stable/changelog.html +Project-URL: Bug Tracker, https://github.com/python-attrs/attrs/issues +Project-URL: Source Code, https://github.com/python-attrs/attrs +Project-URL: Funding, https://github.com/sponsors/hynek +Project-URL: Tidelift, https://tidelift.com/subscription/pkg/pypi-attrs?utm_source=pypi-attrs&utm_medium=pypi +Project-URL: Ko-fi, https://ko-fi.com/the_hynek +Keywords: class,attribute,boilerplate +Platform: UNKNOWN +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: Natural Language :: English +Classifier: License :: OSI Approved :: MIT License +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 2 +Classifier: Programming Language :: Python :: 2.7 +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.5 +Classifier: Programming Language :: Python :: 3.6 +Classifier: Programming Language :: Python :: 3.7 +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.* +Description-Content-Type: text/x-rst +License-File: LICENSE +License-File: AUTHORS.rst +Provides-Extra: dev +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'dev' +Requires-Dist: hypothesis ; extra == 'dev' +Requires-Dist: pympler ; extra == 'dev' +Requires-Dist: pytest (>=4.3.0) ; extra == 'dev' +Requires-Dist: six ; extra == 'dev' +Requires-Dist: mypy ; extra == 'dev' +Requires-Dist: pytest-mypy-plugins ; extra == 'dev' +Requires-Dist: zope.interface ; extra == 'dev' +Requires-Dist: furo ; extra == 'dev' +Requires-Dist: sphinx ; extra == 'dev' +Requires-Dist: sphinx-notfound-page ; extra == 'dev' +Requires-Dist: pre-commit ; extra == 'dev' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'dev' +Provides-Extra: docs +Requires-Dist: furo ; extra == 'docs' +Requires-Dist: sphinx ; extra == 'docs' +Requires-Dist: zope.interface ; extra == 'docs' +Requires-Dist: sphinx-notfound-page ; extra == 'docs' +Provides-Extra: tests +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'tests' +Requires-Dist: hypothesis ; extra == 'tests' +Requires-Dist: pympler ; extra == 'tests' +Requires-Dist: pytest (>=4.3.0) ; extra == 'tests' +Requires-Dist: six ; extra == 'tests' +Requires-Dist: mypy ; extra == 'tests' +Requires-Dist: pytest-mypy-plugins ; extra == 'tests' +Requires-Dist: zope.interface ; extra == 'tests' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'tests' +Provides-Extra: tests_no_zope +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'tests_no_zope' +Requires-Dist: hypothesis ; extra == 'tests_no_zope' +Requires-Dist: pympler ; extra == 'tests_no_zope' +Requires-Dist: pytest (>=4.3.0) ; extra == 'tests_no_zope' +Requires-Dist: six ; extra == 'tests_no_zope' +Requires-Dist: mypy ; extra == 'tests_no_zope' +Requires-Dist: pytest-mypy-plugins ; extra == 'tests_no_zope' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'tests_no_zope' + + +.. image:: https://www.attrs.org/en/stable/_static/attrs_logo.png + :alt: attrs logo + :align: center + + +``attrs`` is the Python package that will bring back the **joy** of **writing classes** by relieving you from the drudgery of implementing object protocols (aka `dunder methods `_). +`Trusted by NASA `_ for Mars missions since 2020! + +Its main goal is to help you to write **concise** and **correct** software without slowing down your code. + +.. teaser-end + +For that, it gives you a class decorator and a way to declaratively define the attributes on that class: + +.. -code-begin- + +.. code-block:: pycon + + >>> from attrs import asdict, define, make_class, Factory + + >>> @define + ... class SomeClass: + ... a_number: int = 42 + ... list_of_numbers: list[int] = Factory(list) + ... + ... def hard_math(self, another_number): + ... return self.a_number + sum(self.list_of_numbers) * another_number + + + >>> sc = SomeClass(1, [1, 2, 3]) + >>> sc + SomeClass(a_number=1, list_of_numbers=[1, 2, 3]) + + >>> sc.hard_math(3) + 19 + >>> sc == SomeClass(1, [1, 2, 3]) + True + >>> sc != SomeClass(2, [3, 2, 1]) + True + + >>> asdict(sc) + {'a_number': 1, 'list_of_numbers': [1, 2, 3]} + + >>> SomeClass() + SomeClass(a_number=42, list_of_numbers=[]) + + >>> C = make_class("C", ["a", "b"]) + >>> C("foo", "bar") + C(a='foo', b='bar') + + +After *declaring* your attributes ``attrs`` gives you: + +- a concise and explicit overview of the class's attributes, +- a nice human-readable ``__repr__``, +- a equality-checking methods, +- an initializer, +- and much more, + +*without* writing dull boilerplate code again and again and *without* runtime performance penalties. + +**Hate type annotations**!? +No problem! +Types are entirely **optional** with ``attrs``. +Simply assign ``attrs.field()`` to the attributes instead of annotating them with types. + +---- + +This example uses ``attrs``'s modern APIs that have been introduced in version 20.1.0, and the ``attrs`` package import name that has been added in version 21.3.0. +The classic APIs (``@attr.s``, ``attr.ib``, plus their serious business aliases) and the ``attr`` package import name will remain **indefinitely**. + +Please check out `On The Core API Names `_ for a more in-depth explanation. + + +Data Classes +============ + +On the tin, ``attrs`` might remind you of ``dataclasses`` (and indeed, ``dataclasses`` are a descendant of ``attrs``). +In practice it does a lot more and is more flexible. +For instance it allows you to define `special handling of NumPy arrays for equality checks `_, or allows more ways to `plug into the initialization process `_. + +For more details, please refer to our `comparison page `_. + + +.. -getting-help- + +Getting Help +============ + +Please use the ``python-attrs`` tag on `Stack Overflow `_ to get help. + +Answering questions of your fellow developers is also a great way to help the project! + + +.. -project-information- + +Project Information +=================== + +``attrs`` is released under the `MIT `_ license, +its documentation lives at `Read the Docs `_, +the code on `GitHub `_, +and the latest release on `PyPI `_. +It’s rigorously tested on Python 2.7, 3.5+, and PyPy. + +We collect information on **third-party extensions** in our `wiki `_. +Feel free to browse and add your own! + +If you'd like to contribute to ``attrs`` you're most welcome and we've written `a little guide `_ to get you started! + + +``attrs`` for Enterprise +------------------------ + +Available as part of the Tidelift Subscription. + +The maintainers of ``attrs`` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source packages you use to build your applications. +Save time, reduce risk, and improve code health, while paying the maintainers of the exact packages you use. +`Learn more. `_ + + +Release Information +=================== + +21.4.0 (2021-12-29) +------------------- + +Changes +^^^^^^^ + +- Fixed the test suite on PyPy3.8 where ``cloudpickle`` does not work. + `#892 `_ +- Fixed ``coverage report`` for projects that use ``attrs`` and don't set a ``--source``. + `#895 `_, + `#896 `_ + +`Full changelog `_. + +Credits +======= + +``attrs`` is written and maintained by `Hynek Schlawack `_. + +The development is kindly supported by `Variomedia AG `_. + +A full list of contributors can be found in `GitHub's overview `_. + +It’s the spiritual successor of `characteristic `_ and aspires to fix some of it clunkiness and unfortunate decisions. +Both were inspired by Twisted’s `FancyEqMixin `_ but both are implemented using class decorators because `subclassing is bad for you `_, m’kay? + + diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/RECORD b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/RECORD new file mode 100644 index 00000000000..c8de5605a02 --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/RECORD @@ -0,0 +1,57 @@ +attr/__init__.py,sha256=_zhJ4O8Q5KR5gaIrjX73vkR5nA6NjfpMGXQChEdNljI,1667 +attr/__init__.pyi,sha256=ubRkstoRHPpQN17iA0OCh8waIwZ5NeJgbz0lwI8XUjY,15100 +attr/__pycache__/__init__.cpython-39.pyc,, +attr/__pycache__/_cmp.cpython-39.pyc,, +attr/__pycache__/_compat.cpython-39.pyc,, +attr/__pycache__/_config.cpython-39.pyc,, +attr/__pycache__/_funcs.cpython-39.pyc,, +attr/__pycache__/_make.cpython-39.pyc,, +attr/__pycache__/_next_gen.cpython-39.pyc,, +attr/__pycache__/_version_info.cpython-39.pyc,, +attr/__pycache__/converters.cpython-39.pyc,, +attr/__pycache__/exceptions.cpython-39.pyc,, +attr/__pycache__/filters.cpython-39.pyc,, 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+attrs-21.4.0.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +attrs-21.4.0.dist-info/WHEEL,sha256=z9j0xAa_JmUKMpmz72K0ZGALSM_n-wQVmGbleXx2VHg,110 +attrs-21.4.0.dist-info/top_level.txt,sha256=AGbmKnOtYpdkLRsDRQVSBIwfL32pAQ6BSo1mt-BxI7M,11 +attrs/__init__.py,sha256=CeyxLGVViAEKKsLOLaif8vF3vs1a28vsrRVLv7eMEgM,1109 +attrs/__init__.pyi,sha256=57aCxUJukK9lZlrUgk9RuWiBiPY5DzDKJAJkhbrStYw,1982 +attrs/__pycache__/__init__.cpython-39.pyc,, +attrs/__pycache__/converters.cpython-39.pyc,, +attrs/__pycache__/exceptions.cpython-39.pyc,, +attrs/__pycache__/filters.cpython-39.pyc,, +attrs/__pycache__/setters.cpython-39.pyc,, +attrs/__pycache__/validators.cpython-39.pyc,, +attrs/converters.py,sha256=fCBEdlYWcmI3sCnpUk2pz22GYtXzqTkp6NeOpdI64PY,70 +attrs/exceptions.py,sha256=SlDli6AY77f6ny-H7oy98OkQjsrw-D_supEuErIVYkE,70 +attrs/filters.py,sha256=dc_dNey29kH6KLU1mT2Dakq7tZ3kBfzEGwzOmDzw1F8,67 +attrs/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +attrs/setters.py,sha256=oKw51C72Hh45wTwYvDHJP9kbicxiMhMR4Y5GvdpKdHQ,67 +attrs/validators.py,sha256=4ag1SyVD2Hm3PYKiNG_NOtR_e7f81Hr6GiNl4YvXo4Q,70 diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/REQUESTED b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/REQUESTED new file mode 100644 index 00000000000..e69de29bb2d diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/WHEEL b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/WHEEL new file mode 100644 index 00000000000..0b18a281107 --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/WHEEL @@ -0,0 +1,6 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.37.1) +Root-Is-Purelib: true +Tag: py2-none-any +Tag: py3-none-any + diff --git a/src/licensedcode/_vendor/attrs-21.4.0.dist-info/top_level.txt b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/top_level.txt new file mode 100644 index 00000000000..eca8ba9f00d --- /dev/null +++ b/src/licensedcode/_vendor/attrs-21.4.0.dist-info/top_level.txt @@ -0,0 +1,2 @@ +attr +attrs diff --git a/src/licensedcode/_vendor/attrs.ABOUT b/src/licensedcode/_vendor/attrs.ABOUT new file mode 100644 index 00000000000..5b8dd14a106 --- /dev/null +++ b/src/licensedcode/_vendor/attrs.ABOUT @@ -0,0 +1,13 @@ +about_resource: attrs +attribute: yes +checksum_md5: ad5a10e4dd479f5b1f4b258acf661163 +checksum_sha1: 77295133e1adb57cbcf92fd6c512bc06d7bcacf4 +copyright: Copyright (c) Hynek Schlawack +download_url: https://files.pythonhosted.org/packages/be/be/7abce643bfdf8ca01c48afa2ddf8308c2308b0c3b239a44e57d020afa0ef/attrs-21.4.0-py2.py3-none-any.whl +license_expression: mit +name: attrs +package_url: pkg:pypi/attrs@21.4.0 +primary_language: Python +type: pypi +version: 21.4.0 +notes: this is a vendored copy using python-vendorize diff --git a/src/licensedcode/_vendor/attrs/__init__.py b/src/licensedcode/_vendor/attrs/__init__.py new file mode 100644 index 00000000000..c27b9505824 --- /dev/null +++ b/src/licensedcode/_vendor/attrs/__init__.py @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: MIT + +from ..attr import ( + NOTHING, + Attribute, + Factory, + __author__, + __copyright__, + __description__, + __doc__, + __email__, + __license__, + __title__, + __url__, + __version__, + __version_info__, + assoc, + cmp_using, + define, + evolve, + field, + fields, + fields_dict, + frozen, + has, + make_class, + mutable, + resolve_types, + validate, +) +from ..attr._next_gen import asdict, astuple + +from . import converters, exceptions, filters, setters, validators + + +__all__ = [ + "__author__", + "__copyright__", + "__description__", + "__doc__", + "__email__", + "__license__", + "__title__", + "__url__", + "__version__", + "__version_info__", + "asdict", + "assoc", + "astuple", + "Attribute", + "cmp_using", + "converters", + "define", + "evolve", + "exceptions", + "Factory", + "field", + "fields_dict", + "fields", + "filters", + "frozen", + "has", + "make_class", + "mutable", + "NOTHING", + "resolve_types", + "setters", + "validate", + "validators", +] diff --git a/src/licensedcode/_vendor/attrs/__init__.pyi b/src/licensedcode/_vendor/attrs/__init__.pyi new file mode 100644 index 00000000000..7426fa5ddbf --- /dev/null +++ b/src/licensedcode/_vendor/attrs/__init__.pyi @@ -0,0 +1,63 @@ +from typing import ( + Any, + Callable, + Dict, + Mapping, + Optional, + Sequence, + Tuple, + Type, +) + +# Because we need to type our own stuff, we have to make everything from +# attr explicitly public too. +from attr import __author__ as __author__ +from attr import __copyright__ as __copyright__ +from attr import __description__ as __description__ +from attr import __email__ as __email__ +from attr import __license__ as __license__ +from attr import __title__ as __title__ +from attr import __url__ as __url__ +from attr import __version__ as __version__ +from attr import __version_info__ as __version_info__ +from attr import _FilterType +from attr import assoc as assoc +from attr import Attribute as Attribute +from attr import define as define +from attr import evolve as evolve +from attr import Factory as Factory +from attr import exceptions as exceptions +from attr import field as field +from attr import fields as fields +from attr import fields_dict as fields_dict +from attr import frozen as frozen +from attr import has as has +from attr import make_class as make_class +from attr import mutable as mutable +from attr import NOTHING as NOTHING +from attr import resolve_types as resolve_types +from attr import setters as setters +from attr import validate as validate +from attr import validators as validators + +# TODO: see definition of attr.asdict/astuple +def asdict( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + dict_factory: Type[Mapping[Any, Any]] = ..., + retain_collection_types: bool = ..., + value_serializer: Optional[ + Callable[[type, Attribute[Any], Any], Any] + ] = ..., + tuple_keys: bool = ..., +) -> Dict[str, Any]: ... + +# TODO: add support for returning NamedTuple from the mypy plugin +def astuple( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + tuple_factory: Type[Sequence[Any]] = ..., + retain_collection_types: bool = ..., +) -> Tuple[Any, ...]: ... diff --git a/src/licensedcode/_vendor/attrs/converters.py b/src/licensedcode/_vendor/attrs/converters.py new file mode 100644 index 00000000000..39a0a618fdb --- /dev/null +++ b/src/licensedcode/_vendor/attrs/converters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from ..attr.converters import * # noqa diff --git a/src/licensedcode/_vendor/attrs/exceptions.py b/src/licensedcode/_vendor/attrs/exceptions.py new file mode 100644 index 00000000000..09d31b3e13a --- /dev/null +++ b/src/licensedcode/_vendor/attrs/exceptions.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from ..attr.exceptions import * # noqa diff --git a/src/licensedcode/_vendor/attrs/filters.py b/src/licensedcode/_vendor/attrs/filters.py new file mode 100644 index 00000000000..4fba098c044 --- /dev/null +++ b/src/licensedcode/_vendor/attrs/filters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from ..attr.filters import * # noqa diff --git a/src/licensedcode/_vendor/attrs/py.typed b/src/licensedcode/_vendor/attrs/py.typed new file mode 100644 index 00000000000..e69de29bb2d diff --git a/src/licensedcode/_vendor/attrs/setters.py b/src/licensedcode/_vendor/attrs/setters.py new file mode 100644 index 00000000000..33b706affbb --- /dev/null +++ b/src/licensedcode/_vendor/attrs/setters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from ..attr.setters import * # noqa diff --git a/src/licensedcode/_vendor/attrs/validators.py b/src/licensedcode/_vendor/attrs/validators.py new file mode 100644 index 00000000000..c7a9dd70deb --- /dev/null +++ b/src/licensedcode/_vendor/attrs/validators.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from ..attr.validators import * # noqa diff --git a/src/licensedcode/_vendor/mit.LICENSE b/src/licensedcode/_vendor/mit.LICENSE new file mode 100644 index 00000000000..969d061e8ba --- /dev/null +++ b/src/licensedcode/_vendor/mit.LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/src/licensedcode/cache.py b/src/licensedcode/cache.py index cb3c788be6a..559db3e938d 100644 --- a/src/licensedcode/cache.py +++ b/src/licensedcode/cache.py @@ -9,9 +9,6 @@ import os import pickle -import attr - -from commoncode.datautils import attribute from commoncode.fileutils import create_dir from scancode_config import licensedcode_cache_dir @@ -37,16 +34,22 @@ LICENSE_CHECKSUM_FILE = 'scancode_license_index_tree_checksums' -@attr.s(slots=True) class LicenseCache: """ Represent cachable/pickable LicenseIndex and index-related objects. """ - db = attribute(help='mapping of License objects by key') - index = attribute(help='LicenseIndex object') - licensing = attribute(help='Licensing object') - spdx_symbols = attribute(help='mapping of LicenseSymbol objects by SPDX key') - unknown_spdx_symbol = attribute(help='LicenseSymbol object') + + def __init__(self, db=None, index=None, licensing=None, spdx_symbols=None, unknown_spdx_symbol=None): + # mapping of License objects by key + self.db = db + # LicenseIndex object + self.index = index + # Licensing object + self.licensing = licensing + # mapping of LicenseSymbol objects by SPDX key + self.spdx_symbols = spdx_symbols + # LicenseSymbol object + self.unknown_spdx_symbol = unknown_spdx_symbol @staticmethod def load_or_build( diff --git a/src/licensedcode/models.py b/src/licensedcode/models.py index 0b29103b169..fc4366e4327 100644 --- a/src/licensedcode/models.py +++ b/src/licensedcode/models.py @@ -23,7 +23,7 @@ from os.path import join from time import time -import attr +from licensedcode._vendor import attr import saneyaml from license_expression import ExpressionError from license_expression import Licensing @@ -2245,6 +2245,34 @@ def compute_unique_id(self): return hashlib.md5(self.text.encode('utf-8')).hexdigest() +@attr.s(slots=True, repr=False) +class DebianUnknownRule(Rule): + """ + A specialized rule object that is used for the special case of unknown + matches in debian copyright files. + + Since there can be a lot of unknown licenses in a debian copyright file, the + rule and the LicenseMatch objects for these are built at matching time. + """ + + def __attrs_post_init__(self, *args, **kwargs): + self.identifier = 'debian-' + self.license_expression + expression = self.licensing.parse(self.license_expression) + self.license_expression = expression.render() + self.license_expression_object = expression + self.is_license_tag = True + self.is_small = False + self.relevance = 100 + self.has_stored_relevance = True + + def load(self): + raise NotImplementedError + + def dump(self): + raise NotImplementedError + + + def _print_rule_stats(): """ Print rules statistics. diff --git a/src/packagedcode/debian_copyright.py b/src/packagedcode/debian_copyright.py index af318eeefa8..7047be98816 100644 --- a/src/packagedcode/debian_copyright.py +++ b/src/packagedcode/debian_copyright.py @@ -27,7 +27,7 @@ from licensedcode.query import Query from licensedcode.match import LicenseMatch from licensedcode.match import set_matched_lines -from licensedcode.models import Rule +from licensedcode.models import DebianUnknownRule from licensedcode.spans import Span from packagedcode import models from packagedcode.licensing import get_license_expression_from_matches @@ -1568,7 +1568,7 @@ def add_unknown_matches(name, text): len_legalese = idx.len_legalese hispan = Span(p for p, t in enumerate(matched_tokens) if t < len_legalese) - unknown_rule = UnknownRule( + unknown_rule = DebianUnknownRule( license_expression=expression_str, text=license_text, length=match_len, @@ -1589,32 +1589,6 @@ def add_unknown_matches(name, text): return matches -@attr.s(slots=True, repr=False) -class UnknownRule(Rule): - """ - A specialized rule object that is used for the special case of unknown - matches in debian copyright files. - - Since there can be a lot of unknown licenses in a debian copyright file, the - rule and the LicenseMatch objects for these are built at matching time. - """ - - def __attrs_post_init__(self, *args, **kwargs): - self.identifier = 'debian-' + self.license_expression - expression = self.licensing.parse(self.license_expression) - self.license_expression = expression.render() - self.license_expression_object = expression - self.is_license_tag = True - self.is_small = False - self.relevance = 100 - self.has_stored_relevance = True - - def load(self): - raise NotImplementedError - - def dump(self): - raise NotImplementedError - def get_license_detections_from_other_fields(paragraph): """ diff --git a/vendorize.toml b/vendorize.toml new file mode 100644 index 00000000000..921c75daa3c --- /dev/null +++ b/vendorize.toml @@ -0,0 +1,4 @@ +target = "src/licensedcode/_vendor/" +packages = [ + "attrs==21.4.0", +] From 3d6db801bf321efa84fde5d88bd7412cbb25e8c1 Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 16:07:11 +0100 Subject: [PATCH 2/6] Bump version to 31.2.4 Signed-off-by: Philippe Ombredanne --- CHANGELOG.rst | 11 +++++++++++ setup-mini.cfg | 2 +- setup.cfg | 2 +- src/scancode_config.py | 4 ++-- 4 files changed, 15 insertions(+), 4 deletions(-) diff --git a/CHANGELOG.rst b/CHANGELOG.rst index dcae98079b2..7ccd7b257ce 100644 --- a/CHANGELOG.rst +++ b/CHANGELOG.rst @@ -55,6 +55,17 @@ License detection: as an option. +v31.2.4 - 2023-01-09 +---------------------------------- + +This is a minor bugfix release. + +There is a fix for an installation issue with the new "attrs" version 22.x +when scancode-toolkit is installed using pip. +This is resolved by vendoring attrs for use in licensedcode" to work around +https://github.com/nexB/scancode-toolkit/issues/3179 + + v31.2.3 - 2022-12-24 ---------------------------------- diff --git a/setup-mini.cfg b/setup-mini.cfg index af6e71f5ff6..f00f793537e 100644 --- a/setup-mini.cfg +++ b/setup-mini.cfg @@ -1,6 +1,6 @@ [metadata] name = scancode-toolkit-mini -version = 31.2.3 +version = 31.2.4 license = Apache-2.0 AND CC-BY-4.0 AND LicenseRef-scancode-other-permissive AND LicenseRef-scancode-other-copyleft # description must be on ONE line https://github.com/pypa/setuptools/issues/1390 diff --git a/setup.cfg b/setup.cfg index 6840d1a6251..7273b81b697 100644 --- a/setup.cfg +++ b/setup.cfg @@ -1,6 +1,6 @@ [metadata] name = scancode-toolkit -version = 31.2.3 +version = 31.2.4 license = Apache-2.0 AND CC-BY-4.0 AND LicenseRef-scancode-other-permissive AND LicenseRef-scancode-other-copyleft # description must be on ONE line https://github.com/pypa/setuptools/issues/1390 diff --git a/src/scancode_config.py b/src/scancode_config.py index a2351baca80..f1a37536e98 100644 --- a/src/scancode_config.py +++ b/src/scancode_config.py @@ -77,10 +77,10 @@ def _create_dir(location): # in case package is not installed or we do not have setutools/pkg_resources # on hand fall back to this version -__version__ = '31.2.3' +__version__ = '31.2.4' # used to warn user when the version is out of date -__release_date__ = datetime.datetime(2022, 10, 5) +__release_date__ = datetime.datetime(2023, 1, 9) # See https://github.com/nexB/scancode-toolkit/issues/2653 for more information # on the data format version From d43a14e0c8ae74b7729775317b1a0523b1e49b8b Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 16:11:07 +0100 Subject: [PATCH 3/6] Do not run tests on vendored dirs #3179 #3192 Signed-off-by: Philippe Ombredanne --- pyproject.toml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/pyproject.toml b/pyproject.toml index b9937c33a93..5fad8506f5c 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -37,7 +37,8 @@ norecursedirs = [ "tests/data", ".eggs", "src/*/data", - "tests/*/data" + "tests/*/data", + "src/licensedcode/_vendor/" ] python_files = "*.py" From 45a5f82beaa98d5a039a9ffedcf2f99a4a9bb3fa Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 16:11:35 +0100 Subject: [PATCH 4/6] Use correct expected SPDX license list version Signed-off-by: Philippe Ombredanne --- tests/formattedcode/data/spdx/license_known/expected.tv | 2 +- .../formattedcode/data/spdx/license_known/expected_with_text.tv | 2 +- tests/formattedcode/data/spdx/license_ref/expected.tv | 2 +- tests/formattedcode/data/spdx/license_ref/expected_with_text.tv | 2 +- tests/formattedcode/data/spdx/simple/expected.tv | 2 +- tests/formattedcode/data/spdx/tree/expected.tv | 2 +- tests/formattedcode/data/spdx/unicode/expected.tv | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/tests/formattedcode/data/spdx/license_known/expected.tv b/tests/formattedcode/data/spdx/license_known/expected.tv index 01ab4ba40e8..8b50df37a8c 100644 --- a/tests/formattedcode/data/spdx/license_known/expected.tv +++ b/tests/formattedcode/data/spdx/license_known/expected.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/scan DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/license_known/expected_with_text.tv b/tests/formattedcode/data/spdx/license_known/expected_with_text.tv index 01ab4ba40e8..8b50df37a8c 100644 --- a/tests/formattedcode/data/spdx/license_known/expected_with_text.tv +++ b/tests/formattedcode/data/spdx/license_known/expected_with_text.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/scan DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/license_ref/expected.tv b/tests/formattedcode/data/spdx/license_ref/expected.tv index b712eb85c43..f0fdb0e23f9 100644 --- a/tests/formattedcode/data/spdx/license_ref/expected.tv +++ b/tests/formattedcode/data/spdx/license_ref/expected.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/scan DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/license_ref/expected_with_text.tv b/tests/formattedcode/data/spdx/license_ref/expected_with_text.tv index 8c67fb4fd9a..e784708383c 100644 --- a/tests/formattedcode/data/spdx/license_ref/expected_with_text.tv +++ b/tests/formattedcode/data/spdx/license_ref/expected_with_text.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/scan DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/simple/expected.tv b/tests/formattedcode/data/spdx/simple/expected.tv index 8f3db37971b..058a4f204d1 100644 --- a/tests/formattedcode/data/spdx/simple/expected.tv +++ b/tests/formattedcode/data/spdx/simple/expected.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/simple DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/tree/expected.tv b/tests/formattedcode/data/spdx/tree/expected.tv index 52762e2aa5e..c6843d0e178 100644 --- a/tests/formattedcode/data/spdx/tree/expected.tv +++ b/tests/formattedcode/data/spdx/tree/expected.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/scan DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from diff --git a/tests/formattedcode/data/spdx/unicode/expected.tv b/tests/formattedcode/data/spdx/unicode/expected.tv index 9800b5eb61f..05877afee6c 100644 --- a/tests/formattedcode/data/spdx/unicode/expected.tv +++ b/tests/formattedcode/data/spdx/unicode/expected.tv @@ -3,7 +3,7 @@ SPDXVersion: SPDX-2.2 DataLicense: CC0-1.0 DocumentNamespace: http://spdx.org/spdxdocs/unicode DocumentName: SPDX Document created by ScanCode Toolkit -LicenseListVersion: 3.17 +LicenseListVersion: 3.18 SPDXID: SPDXRef-DOCUMENT DocumentComment: Generated with ScanCode and provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. No content created from From b1fd2b12be84a9a68351a5c16b730dc7b75c7d8e Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 16:14:15 +0100 Subject: [PATCH 5/6] Restore legacy support of >> PyPI requirements This was restored with the introduction of packvers Signed-off-by: Philippe Ombredanne --- .../invalid_spec/output.expected.json | 24 ++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/tests/packagedcode/data/pypi/requirements_txt/invalid_spec/output.expected.json b/tests/packagedcode/data/pypi/requirements_txt/invalid_spec/output.expected.json index 4634134661b..9daeb298df0 100644 --- a/tests/packagedcode/data/pypi/requirements_txt/invalid_spec/output.expected.json +++ b/tests/packagedcode/data/pypi/requirements_txt/invalid_spec/output.expected.json @@ -28,7 +28,29 @@ "source_packages": [], "file_references": [], "extra_data": {}, - "dependencies": [], + "dependencies": [ + { + "purl": "pkg:pypi/test", + "extracted_requirement": "test>>1.2.0", + "scope": "install", + "is_runtime": true, + "is_optional": false, + "is_resolved": false, + "resolved_package": {}, + "extra_data": { + "is_editable": false, + "link": null, + "hash_options": [], + "is_constraint": false, + "is_archive": null, + "is_wheel": false, + "is_url": null, + "is_vcs_url": null, + "is_name_at_url": false, + "is_local_path": null + } + } + ], "repository_homepage_url": null, "repository_download_url": null, "api_data_url": null, From c14d1d951c07e8b0f4a80fffec98652905ac7053 Mon Sep 17 00:00:00 2001 From: Philippe Ombredanne Date: Mon, 9 Jan 2023 16:28:46 +0100 Subject: [PATCH 6/6] Do not run vendored code doctests Signed-off-by: Philippe Ombredanne --- pyproject.toml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pyproject.toml b/pyproject.toml index 5fad8506f5c..eeb168eb668 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -38,7 +38,7 @@ norecursedirs = [ ".eggs", "src/*/data", "tests/*/data", - "src/licensedcode/_vendor/" + "src/licensedcode/_vendor" ] python_files = "*.py"