Insights: python/mypy

18 Pull requests merged by 8 people

• 'in' can narrow TypedDict unions

  #13838 merged Dec 20, 2022

• (🎁) Add 3.12-dev to CI

  #14050 merged Dec 14, 2022

• [partially defined] implement support for try statements

  #14114 merged Dec 16, 2022

• Revert "[mypyc] Use tabs instead of spaces in emitted C code (#14016)"

  #14152 merged Dec 20, 2022

• Add `--debug-serialize` option

  #14155 merged Dec 19, 2022

• Switch :py:func:`type` to py:class:`type` in type_narrowing.rst

  #14253 merged Dec 20, 2022

• Update `stubinfo.py` for recent typeshed changes

  #14265 merged Dec 20, 2022

• Constant fold initializers of final variables

  #14283 merged Dec 15, 2022

• Sync typeshed

  #14295 merged Dec 15, 2022

• [used-before-def] fix false positive inside loop

  #14307 merged Dec 19, 2022

• [undefined vars] skip visiting unreachable else clauses

  #14308 merged Dec 19, 2022

• Add basic support for `typing_extensions.TypeVar`

  #14313 merged Dec 19, 2022

• Optimize implementation of TypedDict types for **kwds

  #14316 merged Dec 20, 2022

• Enable `--debug-serialize` for mypy_primer

  #14318 merged Dec 19, 2022

• Speed up freshening type variables

  #14323 merged Dec 20, 2022

• Optimize type parameter checks in subtype checking

  #14324 merged Dec 20, 2022

• Optimize subtype checking by avoiding a nested function

  #14325 merged Dec 20, 2022

• Speed up recursive type check

  #14326 merged Dec 20, 2022

2 Pull requests opened by 2 people

• Special handling for InitVar #12046

  #14299 opened Dec 15, 2022

• Refactor TypeState into a singleton class

  #14327 opened Dec 20, 2022

8 Issues closed by 8 people

• mypy spends a long time in a linux kernel if high number of cores.

  #10818 closed Dec 19, 2022

• typing_extensions TypeVar seems to be unsupported

  #14312 closed Dec 19, 2022

• AssertionError: assert file not in self.flushed_files

  #14202 closed Dec 18, 2022

• Support try/except in partially defined check

  #13928 closed Dec 16, 2022

• Python

  #14304 closed Dec 16, 2022

• AssertionError: ('numpy.ma.mrecords.MaskedArray', 'numpy.ma.MaskedArray')

  #14300 closed Dec 16, 2022

• Inline union assigned to type alias produces error

  #14302 closed Dec 15, 2022

• Infinite loop

  #14292 closed Dec 14, 2022

18 Issues opened by 15 people

• Stub suggestions for non-typeshed stubs

  #14328 opened Dec 20, 2022

• Incremental mode bug for nested ParamSpecs

  #14322 opened Dec 20, 2022

• Type is incompatible with Callable when using Concatenate

  #14321 opened Dec 20, 2022

• Option to run non-interactive and fail if --install-types is dirty.

  #14320 opened Dec 20, 2022

• Annotation of `Callable` and `function`

  #14319 opened Dec 20, 2022

• Subscript op on TypeAlias to Enum is misinterpreted

  #14317 opened Dec 19, 2022

• Generic TypeAlias does not infer types

  #14315 opened Dec 19, 2022

• truthy-function incorrectly reported on sqlalchemy's hybrid_property with expression

  #14314 opened Dec 19, 2022

• Sequence | Hashable reduced to Hashable when class is Generic

  #14311 opened Dec 17, 2022

• [possibly-undefined] Track conditional assignment

  #14310 opened Dec 17, 2022

• [possibly-undefined] False-positive with nested try block and finally

  #14309 opened Dec 17, 2022

• discrepencay between mypy and mypyc

  #14306 opened Dec 16, 2022

• Mypy incorrectly infers a non-optional type

  #14305 opened Dec 16, 2022

• False positive with inherited writable property that reads subtype in subclass

  #14301 opened Dec 15, 2022

• Difference between the command output and the html report

  #14297 opened Dec 15, 2022

• AttributeError: attribute '_fullname' of 'TypeInfo' undefined

  #14296 opened Dec 15, 2022

• Misinterpretation of types in list comprehension

  #14294 opened Dec 14, 2022

• Support PEP 681 (dataclass_transform)

  #14293 opened Dec 14, 2022

29 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Fixes no error thrown for Final fields declared with init=False and not assigned inside __init__

  #14285 commented on Dec 20, 2022 • 8 new comments

• Track mypy performance changes automatically

  #14187 commented on Dec 20, 2022 • 5 new comments

• abstract class shouldn't be considered Callable

  #12361 commented on Dec 20, 2022 • 5 new comments

• Recursive protocols do not work in methods

  #14291 commented on Dec 14, 2022 • 4 new comments

• Editable installs are not recognized as having typing when using py.typed (setuptools v64 issue)

  #13392 commented on Dec 16, 2022 • 3 new comments

• type hint: how should type of lru_cache be defined?

  #5107 commented on Dec 17, 2022 • 3 new comments

• [Feature Request] Provide an API to get the type of the expressions in the AST

  #4868 commented on Dec 20, 2022 • 3 new comments

• Enable use-before-def error code by default

  #14166 commented on Dec 19, 2022 • 3 new comments

• Cannot infer type of lambda when using default arguments

  #12557 commented on Dec 14, 2022 • 2 new comments

• Non-empty container types

  #9745 commented on Dec 17, 2022 • 2 new comments

• Use case for typing.Type with abstract types

  #4717 commented on Dec 19, 2022 • 2 new comments

• Stubtest: Improve heuristics for determining whether global-namespace names are imported

  #14270 commented on Dec 20, 2022 • 2 new comments

• Python 3.11 tracking issue

  #12840 commented on Dec 14, 2022 • 1 new comment

• (🎁) Validate arguments to `dataclasses` utility functions `replace` and `fields`

  #14215 commented on Dec 14, 2022 • 1 new comment

• Faster, parallel type checking

  #933 commented on Dec 15, 2022 • 1 new comment

• mypy can not correctly tell when optional type can not be None

  #14266 commented on Dec 15, 2022 • 1 new comment

• Metaclass conflict error when base class uses an imported metaclass with no annotation

  #14182 commented on Dec 16, 2022 • 1 new comment

• bug: strict = true is incompatible with per-module configuration

  #11401 commented on Dec 18, 2022 • 1 new comment

• AssertionError: Should never get here in normal mode

  #14254 commented on Dec 19, 2022 • 1 new comment

• Errors non-reproducible locally

  #14282 commented on Dec 20, 2022 • 1 new comment

• mypy default cache is not using XDG specification

  #8790 commented on Dec 20, 2022 • 1 new comment

• Release 1.0 planning

  #13685 commented on Dec 20, 2022 • 1 new comment

• Incompatible definition of generic field on multiple base classes

  #9031 commented on Dec 20, 2022 • 1 new comment

• Respect the semantics of EXPLICIT

  #10780 commented on Dec 18, 2022 • 1 new comment

• Use PYTHONPYCACHEPREFIX as fallback value for cache dir

  #10840 commented on Dec 20, 2022 • 1 new comment

• Add common issue docs for PEP585 syntax update

  #14246 commented on Dec 20, 2022 • 1 new comment

• dmypy deameon crash after switching branches

  #14234 commented on Dec 19, 2022 • 0 new comments

• checkexpr: broader fast path for literal container expressions

  #14274 commented on Dec 14, 2022 • 0 new comments

• subtypes: fast path for Union/Union subtype check

  #14277 commented on Dec 14, 2022 • 0 new comments