mypy.ini

# In setup.cfg or mypy.ini:
[mypy]

python_version = 3.13
exclude = .venv
strict_equality=True
disallow_untyped_defs = True
plugins =
  mypy.plugins.proper_plugin,
  returns.contrib.mypy.returns_plugin,

enable_error_code =
  truthy-bool,
  truthy-iterable,
  redundant-expr,
  # We don't want "Are you missing an await?" errors,
  # because we can't disable them for tests only.
  # It is passed as a CLI arg in CI.
  # unused-awaitable,
  # ignore-without-code,
  possibly-undefined,
  redundant-self,

disable_error_code = empty-body, no-untyped-def

# We cannot work without explicit `Any` types and plain generics:
disallow_any_explicit = false
disallow_any_generics = false

follow_imports = silent
ignore_missing_imports = true
strict = true
strict_bytes = true
warn_unreachable = true

# TODO: Enable this later, it's disabled temporarily while we don't discover why
# the explicit restriction on `typeshed.stdlib.unittest.mock`,
# which is the next section, is not working properly when running
# with `pytest`.
disallow_subclassing_any = False

exclude = ['.*test_.*pattern_matching']

[mypy-typeshed.stdlib.unittest.mock]
disallow_subclassing_any = False