Insights: python/mypy

7 Pull requests merged by 6 people

• Fix Unpack imported from typing

  #14378 merged Jan 2, 2023

• Improve performance for errors on class with many attributes

  #14379 merged Jan 3, 2023

• Use secure HTTPS link for Mypy badge

  #14383 merged Jan 3, 2023

• More helpful error for missing self

  #14386 merged Jan 3, 2023

• Fix function argument inference for constrained type variables within unions (Fixes #3644).

  #14396 merged Jan 6, 2023

• [mypyc] Compile away NewType type calls

  #14398 merged Jan 5, 2023

• Document that report generation disables cache

  #14402 merged Jan 6, 2023

10 Pull requests opened by 9 people

• [mypyc] Support attributes that override properties

  #14377 opened Jan 2, 2023

• Move truthy-function docs from “optional checks” to “enabled by default”

  #14380 opened Jan 3, 2023

• Fix bug with in operator used with a union of Container and Iterable

  #14384 opened Jan 3, 2023

• stubgen: Allow aliases below the top level

  #14388 opened Jan 4, 2023

• Avoid false "Incompatible return value type" errors when dealing with `isinstance`, constrained type variables and multiple inheritance (Fixes #13800)

  #14390 opened Jan 4, 2023

• [mypyc] Don't load forward ref targets while setting up non-ext __annotations__

  #14401 opened Jan 6, 2023

• Fix incorrect join in the presence of Any fallback

  #14404 opened Jan 6, 2023

• Begin unifying logic for constraint building

  #14406 opened Jan 6, 2023

• [mypyc] Precompute set literals for "in" ops against / iteration over set literals

  #14409 opened Jan 7, 2023

• (🐞) fix `util.plural_s` for zero and negative

  #14411 opened Jan 8, 2023

13 Issues closed by 4 people

• `--strict-equality` not aware of custom `__eq__` override in child class

  #14410 closed Jan 8, 2023

• Type of LHS of walrus operator not correctly inferred

  #14407 closed Jan 6, 2023

• TypeVar in generic union member gets restricted to first constraint

  #3644 closed Jan 6, 2023

• A single [import] error can hide many other errors in completely unrelated code

  #14389 closed Jan 5, 2023

• `isinstance(foo, NoneType)` does not narrow `foo` as `None`

  #14394 closed Jan 4, 2023

• Making mypy ignore modules in the current working directory?

  #14391 closed Jan 4, 2023

• Base type Resource becomes 'Any' due to an unfollowed import

  #14387 closed Jan 3, 2023

• Method must have at least one argument [misc]

  #14385 closed Jan 3, 2023

• Default value for Generic self is erased by @dataclass

  #14382 closed Jan 3, 2023

• pyproject.toml requires a [mypy] section?

  #14376 closed Jan 2, 2023

• option no-implicit-optional ignored as inline configuration and per-module flags

  #8029 closed Jan 1, 2023

• What format should per-file options take?

  #3432 closed Jan 1, 2023

• strict = True does not correctly override parent settings

  #14372 closed Jan 1, 2023

10 Issues opened by 10 people

• Assigning wrapped class members to a member defined by a base class fails with incompatible types in assignment

  #14408 opened Jan 6, 2023

• [mypyc] TypeError: bool object expected; got numpy.bool_

  #14405 opened Jan 6, 2023

• Incorrect handling of unions of generics

  #14403 opened Jan 6, 2023

• Files without extensions are able to be imported as Python files

  #14400 opened Jan 6, 2023

• Cannot create a class that supports Iterable[RichComparisonT]

  #14399 opened Jan 6, 2023

• mypy accepts invalid PEP 604 syntax with forward reference

  #14397 opened Jan 5, 2023

• Unexpected comparison-overlap error for identity comparison of optionals

  #14395 opened Jan 4, 2023

• Enums do not exhaustively match correctly

  #14393 opened Jan 4, 2023

• Why is `Callable` assumed to be a user defined function?

  #14392 opened Jan 4, 2023

• No error when subclass does not provide a value for ClassVar

  #14381 opened Jan 3, 2023

6 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.

• Type Narrowing failure in 0.981

  #13800 commented on Jan 4, 2023 • 2 new comments

• (🐞) List literals are accepted as valid types when applying a `ParamSpec`

  #13298 commented on Jan 6, 2023 • 2 new comments

• --disallow-untyped-calls allows calling values with Any type

  #5968 commented on Jan 3, 2023 • 1 new comment

• stubgen: import `Union` if generated stub code includes

  #12929 commented on Jan 4, 2023 • 1 new comment

• `--strict` is too strict to be useful

  #7767 commented on Jan 6, 2023 • 1 new comment

• (🐞) Wrong column number for "Invalid location for ParamSpec"

  #12274 commented on Jan 8, 2023 • 1 new comment