feat: Set up comprehensive Python testing infrastructure with Poetry

.gitignore

@@ -1,3 +1,67 @@
+# R related
 .Rproj.user
 .Rhistory
 .RData
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+venv/
+ENV/
+.venv/
+virtualenv/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+coverage.xml
+*.cover
+.hypothesis/
+.tox/
+nosetests.xml
+test-results/
+junit.xml
+
+# Claude
+.claude/*
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.project
+.pydevproject
+.settings/
+
+# Build
+build/
+dist/
+*.spec
+
+# OS
+.DS_Store
+Thumbs.db
+ehthumbs.db
+Desktop.ini

CLAUDE.md

@@ -0,0 +1 @@
+# CLAUDE.md - Project context for Claude Code

pyproject.toml

@@ -0,0 +1,93 @@
+[tool.poetry]
+name = "python-course-assignments"
+version = "0.1.0"
+description = "Python for Everybody course assignments with testing infrastructure"
+authors = ["Your Name <[email protected]>"]
+readme = "README.md"
+package-mode = false
+
+[tool.poetry.dependencies]
+python = "^3.11"
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^8.3.0"
+pytest-cov = "^6.0.0"
+pytest-mock = "^3.14.0"
+
+
+[tool.pytest.ini_options]
+minversion = "8.0"
+addopts = [
+    "--strict-markers",
+    "--strict-config",
+    "--verbose",
+    "--cov=.",
+    "--cov-branch",
+    "--cov-report=html:htmlcov",
+    "--cov-report=xml:coverage.xml",
+    "--cov-report=term-missing:skip-covered",
+    "--cov-fail-under=80",
+    "--tb=short",
+    "-ra",
+]
+testpaths = ["tests"]
+pythonpath = ["."]
+python_files = ["test_*.py", "*_test.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+markers = [
+    "unit: Unit tests",
+    "integration: Integration tests",
+    "slow: Slow running tests",
+]
+filterwarnings = [
+    "error",
+    "ignore::UserWarning",
+    "ignore::DeprecationWarning",
+]
+
+[tool.coverage.run]
+source = ["tests"]
+omit = [
+    "*/tests/conftest.py",
+    "*/__pycache__/*",
+    "*/venv/*",
+    "*/virtualenv/*",
+    "*/.venv/*",
+    "*/dist/*",
+    "*/build/*",
+    "*.egg-info/*",
+    "*/site-packages/*",
+    "setup.py",
+    "wk*.py",
+    "wk */*.py",
+]
+parallel = true
+branch = true
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "def __str__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+    "if typing.TYPE_CHECKING:",
+    "@abstract",
+    "@property",
+]
+show_missing = true
+precision = 2
+fail_under = 80
+
+[tool.coverage.html]
+directory = "htmlcov"
+
+[tool.coverage.xml]
+output = "coverage.xml"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

test.sh

@@ -0,0 +1,2 @@
+#\!/bin/bash
+poetry run pytest "$@"