[build-system]

requires = [

# NOTE: this needs to be kept in sync with mypy-requirements.txt

# and build-requirements.txt, because those are both needed for

# self-typechecking :/

"setuptools >= 40.6.2",

"wheel >= 0.30.0",

# the following is from mypy-requirements.txt

"typing_extensions>=4.1.0",

"mypy_extensions>=1.0.0",

"tomli>=1.1.0; python_version<'3.11'",

# the following is from build-requirements.txt

"types-psutil",

"types-setuptools",

]

build-backend = "setuptools.build_meta"

[tool.black]

line-length = 99

target-version = ["py38", "py39", "py310", "py311"]

skip-magic-trailing-comma = true

force-exclude = '''

^/mypy/typeshed|

^/mypyc/test-data|

^/test-data

'''

[tool.ruff]

line-length = 99

target-version = "py38"

fix = true

select = [

"E", # pycodestyle (error)

"F", # pyflakes

"W", # pycodestyle (warning)

"B", # flake8-bugbear

"I", # isort

"RUF100", # Unused noqa comments

"PGH004", # blanket noqa comments

"UP", # pyupgrade

"C4", # flake8-comprehensions

"SIM201", "SIM202", # simplify comparisons involving not

"ISC001", # implicitly concatenated string

"RET501", "RET502", # better return None handling

]

ignore = [

"B007", # Loop control variable not used within the loop body.

"B011", # Don't use assert False

"B023", # Function definition does not bind loop variable

"E2", # conflicts with black

"E402", # module level import not at top of file

"E501", # conflicts with black

"E731", # Do not assign a `lambda` expression, use a `def`

"E741", # Ambiguous variable name

"UP032", # 'f-string always preferable to format' is controversial

"C416", # There are a few cases where it's nice to have names for the dict items

]

unfixable = [

"F841", # unused variable. ruff keeps the call, but mostly we want to get rid of it all

"F601", # automatic fix might obscure issue

"F602", # automatic fix might obscure issue

"B018", # automatic fix might obscure issue

"UP036", # sometimes it's better to just noqa this

]

extend-exclude = [

"@*",

# Sphinx configuration is irrelevant

"docs/source/conf.py",

"mypyc/doc/conf.py",

# tests have more relaxed styling requirements

# fixtures have their own .pyi-specific configuration

"test-data/*",

"mypyc/test-data/*",

# typeshed has its own .pyi-specific configuration

"mypy/typeshed/*",

]

[tool.ruff.isort]

combine-as-imports = true

extra-standard-library = ["typing_extensions"]

[tool.check-manifest]

ignore = ["**/.readthedocs.yaml"]

[tool.pytest.ini_options]

minversion = "6.0.0"

testpaths = ["mypy/test", "mypyc/test"]

python_files = 'test*.py'

# Where do the test cases come from? We provide our own collection

# logic by implementing `pytest_pycollect_makeitem` in mypy.test.data;

# the test files import that module, and pytest sees the magic name

# and invokes it at the relevant moment. See

# https://doc.pytest.org/en/latest/how-to/writing_plugins.html#collection-hooks

# Both our plugin and unittest provide their own collection logic,

# So we can disable the default python collector by giving it empty

# patterns to search for.

# Note that unittest requires that no "Test*" classes exist.

python_classes = []

python_functions = []

# always run in parallel (requires pytest-xdist, see test-requirements.txt)

# and enable strict mode: require all markers

# to be defined and raise on invalid config values

addopts = "-nauto --strict-markers --strict-config"

# treat xpasses as test failures so they get converted to regular tests as soon as possible

xfail_strict = true

[tool.coverage.run]

branch = true

source = ["mypy"]

parallel = true

[tool.coverage.report]

show_missing = true

skip_covered = true

omit = ['mypy/test/*']

exclude_lines = [

'\#\s*pragma: no cover',

'^\s*raise AssertionError\b',

'^\s*raise NotImplementedError\b',

'^\s*return NotImplemented\b',

'^\s*raise$',

'^assert False\b',

'''^if __name__ == ['"]__main__['"]:$''',

]