element-synapse/mypy.ini

[mypy]
namespace_packages = True
# Our custom mypy plugin should remain first in this list.
#
# mypy has a limitation where it only chooses the first plugin that returns a non-None
# value for each hook (known-limitation, c.f.
# https://github.com/python/mypy/issues/19524). We workaround this by putting our custom
# plugin first in the plugin order and then manually calling any other conflicting
# plugin hooks in our own plugin followed by our own checks.
#
# If you add a new plugin, make sure to check whether the hooks being used conflict with
# our custom plugin hooks and if so, manually call the other plugin's hooks in our
# custom plugin. (also applies to if the plugin is updated in the future)
plugins = scripts-dev/mypy_synapse_plugin.py, pydantic.mypy, mypy_zope:plugin
follow_imports = normal
show_error_codes = True
show_traceback = True
mypy_path = stubs
warn_unreachable = True
local_partial_types = True
no_implicit_optional = True

# Strict checks, see mypy --help
warn_unused_configs = True
# disallow_any_generics = True
disallow_subclassing_any = True
# disallow_untyped_calls = True
disallow_untyped_defs = True
disallow_incomplete_defs = True
# check_untyped_defs = True
# disallow_untyped_decorators = True
warn_redundant_casts = True
warn_unused_ignores = True
# warn_return_any = True
# no_implicit_reexport = True
strict_equality = True

# Run mypy type checking with the minimum supported Python version to catch new usage
# that isn't backwards-compatible (types, overloads, etc).
python_version = 3.10

files =
  docker/,
  scripts-dev/,
  synapse/,
  synmark/,
  tests/,
  build_rust.py

[mypy-synapse.metrics._reactor_metrics]
# This module  pokes at the internals of OS-specific classes, to appease mypy
# on different systems we add additional ignores.
warn_unused_ignores = False

[mypy-synapse.util.caches.treecache]
disallow_untyped_defs = False
disallow_incomplete_defs = False

[mypy-synapse.util.manhole]
# This module imports something from Twisted which has a bad annotation in Twisted trunk,
# but is unannotated in Twisted's latest release. We want to type-ignore the problem 
# in the twisted trunk job, even though it has no effect on normal mypy runs.
warn_unused_ignores = False


;; Dependencies without annotations
;; Before ignoring a module, check to see if type stubs are available.
;; The `typeshed` project maintains stubs here:
;;     https://github.com/python/typeshed/tree/master/stubs
;; and for each package `foo` there's a corresponding `types-foo` package on PyPI,
;; which we can pull in as a dev dependency by adding to `pyproject.toml`'s
;; `[tool.poetry.group.dev.dependencies]` list.

# https://github.com/lepture/authlib/issues/460
[mypy-authlib.*]
ignore_missing_imports = True

[mypy-ijson.*]
ignore_missing_imports = True

# https://github.com/msgpack/msgpack-python/issues/448
[mypy-msgpack]
ignore_missing_imports = True

# https://github.com/wolever/parameterized/issues/143
[mypy-parameterized.*]
ignore_missing_imports = True

[mypy-pymacaroons.*]
ignore_missing_imports = True

[mypy-pympler.*]
ignore_missing_imports = True

[mypy-pyperf.*]
ignore_missing_imports = True

[mypy-rust_python_jaeger_reporter.*]
ignore_missing_imports = True

[mypy-saml2.*]
ignore_missing_imports = True

[mypy-srvlookup.*]
ignore_missing_imports = True

# https://github.com/twisted/treq/pull/366
[mypy-treq.*]
ignore_missing_imports = True

[mypy-multipart.*]
ignore_missing_imports = True

[mypy-mypy_zope.*]
ignore_missing_imports = True