BLD: Implement PEP639 licensing

Author: QuLogic

.github/workflows/cibuildwheel.yml

@@ -51,14 +51,6 @@ jobs:
         with:
           python-version: '3.11'
 
-      # Something changed somewhere that prevents the downloaded-at-build-time
-      # licenses from being included in built wheels, so pre-download them so
-      # that they exist before the build and are included.
-      - name: Pre-download bundled licenses
-        run: >
-          curl -Lo LICENSE/LICENSE_QHULL
-          https://github.com/qhull/qhull/raw/2020.2/COPYING.txt
-
       - name: Install dependencies
         run: python -m pip install build twine
 

.github/workflows/tests.yml

@@ -231,7 +231,7 @@ jobs:
           python -m pip install --upgrade $PRE \
             'contourpy>=1.0.1' cycler fonttools kiwisolver importlib_resources \
             packaging pillow 'pyparsing!=3.1.0' python-dateutil setuptools-scm \
-            'meson-python>=0.13.1' 'pybind11>=2.13.2' \
+            'meson-python>=0.18.0' 'pybind11>=2.13.2' \
             -r requirements/testing/all.txt \
             ${{ matrix.extra-requirements }}
 

ci/check_wheel_licenses.py

@@ -25,7 +25,7 @@
     with zipfile.ZipFile(wheel) as f:
         wheel_license_file_names = {Path(path).name
                                     for path in sorted(f.namelist())
-                                    if '.dist-info/LICENSE' in path}
+                                    if '.dist-info/licenses/LICENSE' in path}
         if not (len(wheel_license_file_names) and
                 wheel_license_file_names.issuperset(license_file_names)):
             sys.exit(f'LICENSE file(s) missing:\n'

meson.build

@@ -7,9 +7,9 @@ project(
     '-m', 'setuptools_scm', check: true).stdout().strip(),
   # qt_editor backend is MIT
   # ResizeObserver at end of lib/matplotlib/backends/web_backend/js/mpl.js is CC0
-  # Carlogo, STIX and Computer Modern is OFL
+  # Carlogo, STIX, Computer Modern and Last Resort are OFL
   # DejaVu is Bitstream Vera and Public Domain
-  license: 'PSF-2.0 AND MIT AND CC0-1.0 AND OFL-1.1 AND Bitstream-Vera AND Public-Domain',
+  license: 'PSF-2.0 AND MIT AND CC0-1.0 AND OFL-1.1 AND Bitstream-Vera AND LicenseRef-Public-Domain',
   license_files: [
     'LICENSE/LICENSE',
     'LICENSE/LICENSE_AMSFONTS',
@@ -18,6 +18,7 @@ project(
     'LICENSE/LICENSE_COLORBREWER',
     'LICENSE/LICENSE_COURIERTEN',
     'LICENSE/LICENSE_JSXTOOLS_RESIZE_OBSERVER',
+    'LICENSE/LICENSE_LAST_RESORT_FONT',
     'LICENSE/LICENSE_QT4_EDITOR',
     'LICENSE/LICENSE_SOLARIZED',
     'LICENSE/LICENSE_STIX',

pyproject.toml

@@ -6,14 +6,12 @@ authors = [
 ]
 description = "Python plotting package"
 readme = "README.md"
-license = { file = "LICENSE/LICENSE" }
-dynamic = ["version"]
+dynamic = ["version", "license", "license-files"]
 classifiers=[
     "Development Status :: 5 - Production/Stable",
     "Framework :: Matplotlib",
     "Intended Audience :: Science/Research",
     "Intended Audience :: Education",
-    "License :: OSI Approved :: Python Software Foundation License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.11",
@@ -46,10 +44,10 @@ requires-python = ">=3.11"
 [project.optional-dependencies]
 # Should be a copy of the build dependencies below.
 dev = [
-    "meson-python>=0.13.1,!=0.17.*",
+    "meson-python>=0.18.0",
     "pybind11>=2.13.2,!=2.13.3",
     "setuptools_scm>=7",
-    # Not required by us but setuptools_scm without a version, cso _if_
+    # Not required by us but setuptools_scm without a version, so _if_
     # installed, then setuptools_scm 8 requires at least this version.
     # Unfortunately, we can't do a sort of minimum-if-installed dependency, so
     # we need to keep this for now until setuptools_scm _fully_ drops
@@ -70,9 +68,7 @@ dev = [
 build-backend = "mesonpy"
 # Also keep in sync with optional dependencies above.
 requires = [
-    # meson-python 0.17.x breaks symlinks in sdists. You can remove this pin if
-    # you really need it and aren't using an sdist.
-    "meson-python>=0.13.1,!=0.17.*",
+    "meson-python>=0.18.0",
     "pybind11>=2.13.2,!=2.13.3",
     "setuptools_scm>=7",
 ]
@@ -92,7 +88,7 @@ manylinux-x86_64-image = "manylinux2014"
 
 before-build = "rm -rf {package}/build"
 test-command = [
-    # "python {package}/ci/check_wheel_licenses.py {wheel}",
+    "python {package}/ci/check_wheel_licenses.py {wheel}",
     "python {package}/ci/check_version_number.py",
 ]
 test-environment = "PIP_PREFER_BINARY=true"

requirements/dev/build-requirements.txt

@@ -1,3 +1,3 @@
 pybind11>=2.13.2,!=2.13.3
-meson-python
+meson-python>=0.18.0
 setuptools-scm

requirements/testing/minver.txt

@@ -5,7 +5,7 @@ cycler==0.10
 fonttools==4.22.0
 importlib-resources==3.2.0
 kiwisolver==1.3.2
-meson-python==0.13.1
+meson-python==0.18.0
 meson==1.1.0
 numpy==1.25.0
 packaging==20.0