5 Pull requests merged by 2 people

• Fix union simplification performance regression

  #12519 merged Apr 5, 2022

• [mypyc] Implement boxed constant integers as literals

  #12507 merged Apr 5, 2022

• [mypyc] Fix incorrect borrowed flag for setdefault() primitive

  #12514 merged Apr 4, 2022

• Fix minor docs inaccuracy: `NoneType` is exposed in the `types` module on Python 3.10+

  #12515 merged Apr 3, 2022

• Refactoring: Remove the "erased" attribute of Instance

  #12499 merged Mar 31, 2022

8 Pull requests opened by 8 people

• Do not generate `__match_args__` when running with `--python-version` < 3.10

  #12503 opened Mar 31, 2022

• fix the incorrect, "variable arguments", error

  #12509 opened Apr 2, 2022

• Docs: Use PEP 585 syntax in "The type of class objects"

  #12516 opened Apr 3, 2022

• [mypyc] Move mypyc singledispatch support into new file

  #12517 opened Apr 4, 2022

• Add more precise error message for Callable annotation

  #12518 opened Apr 4, 2022

• Fix Stubgen's behavior for Instance Variables in C extensions

  #12524 opened Apr 5, 2022

• pyinfo: Use sys.path instead of the site.getsitepackages procedure.

  #12530 opened Apr 6, 2022

• Improve checking of "__slots__"

  #12531 opened Apr 6, 2022

57 Issues closed by 8 people

• `allow-subclassing-any` also applies to subclassing the `Any` type as well as values with `Any` type

  #12529 closed Apr 7, 2022

• Type aliases in class definitions

  #9238 closed Apr 5, 2022

• attrs plugin: support the auto_detect option

  #10328 closed Apr 5, 2022

• A Generic class whose constructor has a default value fails to infer its type

  #12510 closed Apr 4, 2022

• every-attribute-optional derived type, like TypeScript's Partial

  #10889 closed Apr 4, 2022

• literal NamedTuple as a type

  #10294 closed Apr 4, 2022

• Suggestion: more precise inference when all elements are of same generic type

  #8392 closed Apr 4, 2022

• Feature request: access modifiers

  #4740 closed Apr 4, 2022

• Mypy does not report error for incorrect return annotation for NoReturn functions

  #8841 closed Apr 4, 2022

• Optional[T] in {None,...} does not drop the Optional

  #8787 closed Apr 4, 2022

• json

  #12522 closed Apr 4, 2022

• Redefining variable to more specific type

  #8071 closed Apr 4, 2022

• incompatible type using Union as return type

  #8221 closed Apr 4, 2022

• `Callable` doesn't work with `self` type

  #11382 closed Apr 4, 2022

• Refer to ClassVar[Type[...]] from annotation

  #8070 closed Apr 4, 2022

• Bug - Type aliases in closure does not work

  #8273 closed Apr 4, 2022

• QUESTION/HOWTO: Check if callable is bound to specific base class?

  #8667 closed Apr 4, 2022

• incorrectly infers variable type if __init__ is after methods that use it

  #8518 closed Apr 4, 2022

• Mypy thinks that my alias is a type variable

  #8674 closed Apr 4, 2022

• Problem with classmethods in generic protocols

  #10081 closed Apr 4, 2022

• Generic dataclasses with Generic fields are not type checked correctly

  #10039 closed Apr 4, 2022

• Mypy crashes when a function is defined within a function decorated with no_type_check

  #10025 closed Apr 4, 2022

• Using builtin list as argument to map

  #10298 closed Apr 4, 2022

• `super()` erroneously flagged as incorrect when `cls` function parameter is generic

  #7690 closed Apr 4, 2022

• Fast parser associates wrong column number with calls to member functions

  #2749 closed Apr 3, 2022

• Var.is_ready remains false in some cases after type checking

  #4346 closed Apr 3, 2022

• Overload variant notes are sometimes printed multiple times

  #5661 closed Apr 3, 2022

• Nested empty container gets inferred to `object`

  #5045 closed Apr 3, 2022

• Failing to use variables for types

  #3962 closed Apr 3, 2022

• Specifics of callables sometimes lost in error messages

  #3581 closed Apr 3, 2022

• False negative with accessing super types private member from sub type

  #9446 closed Apr 3, 2022

• `x = tuple() # type: Tuple[()]` Incompatible types in assignment

  #6283 closed Apr 3, 2022

• Feature: reveal_type should work from comments

  #8864 closed Apr 3, 2022

• Mypy crashes if there is no 'function' or 'module' in builtins

  #2765 closed Apr 3, 2022

• [question] Overload with return type depending on an optional argument

  #5621 closed Apr 2, 2022

• Using TypeVar with bound in Generic

  #9878 closed Apr 2, 2022

• Declaring a decorator to preserve the signature of the function that decorates, but which calls the function with an additional (named) argument, is it possible to avoid "missing (named) argument" error without making it optional?

  #10441 closed Apr 2, 2022

• Can't make mypy work with a class inherited from django

  #10270 closed Apr 2, 2022

• 0.931: pytest is failing mostly by compiler `[-Werror=cpp]` errors

  #11942 closed Apr 1, 2022

• Please consider using explicit TypeAlias names rather than expanded types in error messages

  #9381 closed Apr 1, 2022

• Cannot use alias from class scope

  #9617 closed Apr 1, 2022

• `==` Narrows the type of an Enum in an if-elif block when following an `is`

  #9786 closed Apr 1, 2022

• can't refine Dict[str, str] with isinstance check

  #9783 closed Apr 1, 2022

• Is there a MyPy extension that can generate annotations from dynamic types?

  #10006 closed Apr 1, 2022

• One-in-many types for tuples?

  #10963 closed Apr 1, 2022

• Overloads in super-class for sub-class specific return types

  #11759 closed Mar 31, 2022

• `type` class cannot be used as a generic

  #11424 closed Mar 31, 2022

• Remove typing.AwaitableGenerator from typeshed

  #8699 closed Mar 31, 2022

• Replace builtins.function with types.FunctionType

  #3171 closed Mar 31, 2022

• Mypy fires on __anext__ function

  #8280 closed Mar 31, 2022

• Virtual subclasses of abstract base classes

  #1459 closed Mar 31, 2022

• "if isinstance(...)" filter in dictionary comprehension causes var type to be inferred as <nothing>

  #10199 closed Mar 31, 2022

• Add a possibility to show types as their alias, rather than their underlying resolution, in mypy's output

  #12502 closed Mar 31, 2022

• Incrementing a tuple confuses mypy

  #10384 closed Mar 31, 2022

• Protocols: issue with namedtuple

  #10466 closed Mar 31, 2022

• "Module has no attribute" when looping over modules

  #11085 closed Mar 31, 2022

• Conditional import of izip is problematic

  #1026 closed Mar 31, 2022

21 Issues opened by 18 people

• Narrowing types to `Literal` using `in` syntax

  #12535 opened Apr 6, 2022

• Guard clause prevents `match` from seeing that all paths return

  #12534 opened Apr 6, 2022

• `match` crashes on Union of Tuple and non-Tuple

  #12533 opened Apr 6, 2022

• `match` doesn't deduce type of tuple member from guard clause

  #12532 opened Apr 6, 2022

• assigning a TypeVar to an identical value is reported as an error.

  #12528 opened Apr 6, 2022

• Crash when TypeVar of Generic dataclass has undefined bound

  #12527 opened Apr 5, 2022

• Speed up union simplification

  #12526 opened Apr 5, 2022

• Positional-or-kw arg considered incompatible with positional-only argument

  #12525 opened Apr 5, 2022

• Mypy inferring `Union[str, str]` when using `enum.value` inside `dict.get`

  #12523 opened Apr 4, 2022

• provide `add_static_method_to_class` via `plugins.common`

  #12521 opened Apr 4, 2022

• "Relative import climbs too many namespaces" is not documented

  #12520 opened Apr 4, 2022

• Plugin: Use mypy to enrich AST with types

  #12513 opened Apr 3, 2022

• Incorrect precision calculation for TypedDict classes.

  #12512 opened Apr 2, 2022

• Feature request: Catch operations on nothingness

  #12511 opened Apr 2, 2022

• "variable arguments" in error message

  #12508 opened Apr 1, 2022

• Odd interaction of Generic, Mapping, Hashable

  #12506 opened Apr 1, 2022

• (🎁) A git/.gitignore exclude option

  #12505 opened Apr 1, 2022

• some tests with approved stubs have the wrong error

  #12504 opened Mar 31, 2022

• Improve error message when variable-length tuple annotation is required

  #12501 opened Mar 31, 2022

• Type Alias for attribue in dataclass with restricted type shows unexpected behavior

  #12500 opened Mar 31, 2022

• dmypy: Line number disappears when invoking multiple times

  #12498 opened Mar 31, 2022

278 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.

• Significant speed degradation from 0.931 to 0.941

  #12408 commented on Apr 6, 2022 • 7 new comments

• NoReturn return type with singledispatch causing weird errors

  #11727 commented on Apr 3, 2022 • 6 new comments

• Don't use builtins.function and others anymore

  #8240 commented on Apr 3, 2022 • 5 new comments

• Mypy doesn't seem to use types from @overload-ed __sub__

  #11613 commented on Apr 5, 2022 • 4 new comments

• Search sys.path for PEP-561 compliant packages

  #11143 commented on Apr 6, 2022 • 4 new comments

• "error: 'type' expects no type arguments, but 1 given" if type is aliased to another name

  #10068 commented on Apr 2, 2022 • 3 new comments

• Constant vs variable as index for none-checking List[Optional[...]]

  #12413 commented on Apr 5, 2022 • 3 new comments

• Keeping the issue tracker healthy

  #12384 commented on Apr 5, 2022 • 3 new comments

• Basic ParamSpec Concatenate and literal support

  #11847 commented on Apr 5, 2022 • 3 new comments

• Error in type comment points to wrong line

  #7472 commented on Apr 3, 2022 • 2 new comments

• Wrong verbosity level when specified in both config file and command line.

  #12485 commented on Apr 4, 2022 • 2 new comments

• mypy runs forever with colour-science

  #12225 commented on Apr 5, 2022 • 2 new comments

• sitecustomize/full sys.path support

  #5701 commented on Apr 6, 2022 • 2 new comments

• Allow using TypedDict for more precise typing of **kwds

  #4441 commented on Apr 6, 2022 • 2 new comments

• Recurrent but not reproducible crash when writing to cache

  #12475 commented on Apr 6, 2022 • 2 new comments

• mypy generates `__match_args__` for dataclasses and `NamedTuple`s on Python <3.10

  #12489 commented on Mar 31, 2022 • 1 new comment

• TypeGuard functions not properly recognizing generic types

  #11428 commented on Mar 31, 2022 • 1 new comment

• mypy --strict has misleading suggestion for Callable

  #11757 commented on Mar 31, 2022 • 1 new comment

• State of the Mypy cache makes check results unpredictable

  #10221 commented on Mar 31, 2022 • 1 new comment

• Cannot assign to field of Callable type

  #708 commented on Mar 31, 2022 • 1 new comment

• (🐞) `Enum.name` is `Any` in 3.11 / support `enum.property`

  #12483 commented on Mar 31, 2022 • 1 new comment

• `inspect.isfunction` and `inspect.ismethod`

  #10117 commented on Apr 1, 2022 • 1 new comment

• How sys.platform is imported matters when doing system platform checks

  #10054 commented on Apr 1, 2022 • 1 new comment

• Casting NamedTuple with __call__ to Callable

  #9858 commented on Apr 1, 2022 • 1 new comment

• False positives when redefining property in subclass

  #5936 commented on Apr 1, 2022 • 1 new comment

• JSON output format

  #10816 commented on Apr 1, 2022 • 1 new comment

• False positive example, can't interact with `isinstance`

  #9226 commented on Apr 1, 2022 • 1 new comment

• Missing Liskov error for subclass with subclass field

  #11720 commented on Apr 2, 2022 • 1 new comment

• Tracking variable whereabouts in a plugin

  #9010 commented on Apr 2, 2022 • 1 new comment

• Variable loses type inference after passing through dictionary of known type

  #9369 commented on Apr 2, 2022 • 1 new comment

• Cannot find module named cattr even though it is installed

  #7305 commented on Apr 2, 2022 • 1 new comment

• mypy thinks variable is None even if assigned non-None value inside loop

  #11900 commented on Apr 2, 2022 • 1 new comment

• Warn if `__exit__` doesn't have the right signature.

  #4885 commented on Apr 3, 2022 • 1 new comment

• Crash while hashing a callable type

  #4601 commented on Apr 3, 2022 • 1 new comment

• Fast parser doesn't complain about signature type comment missing `*` or `**`

  #1997 commented on Apr 3, 2022 • 1 new comment

• Respect sys.platform platform check assertion inside functions

  #9025 commented on Apr 4, 2022 • 1 new comment

• Type alias expansion sometimes interferes with type variable binding

  #3924 commented on Apr 4, 2022 • 1 new comment

• disallow_untyped_calls in module does not override global section

  #10757 commented on Apr 4, 2022 • 1 new comment

• support narrowing enum values using `==` and `!=`

  #10915 commented on Apr 4, 2022 • 1 new comment

• Ignore specific error for whole file

  #11027 commented on Apr 5, 2022 • 1 new comment

• Smarter unwrapping for `Optional` type possible?

  #4245 commented on Apr 7, 2022 • 1 new comment

• "AttributeError: attribute 'arguments' of 'FuncDef' undefined" when running mypy twice

  #12324 commented on Apr 6, 2022 • 1 new comment

• Adopt Black and isort as code formatters

  #12424 commented on Apr 4, 2022 • 1 new comment

• Wrong warning when assigning __str__

  #3951 commented on Mar 31, 2022 • 0 new comments

• --warn-unused-ignores in non-checked branches

  #5940 commented on Mar 31, 2022 • 0 new comments

• .gitignore file in cache is created too late

  #12442 commented on Mar 31, 2022 • 0 new comments

• Covariance error inferred for lambda has invalid line number associated with it

  #8592 commented on Mar 31, 2022 • 0 new comments

• Module ... has no attribute ... when #type: ignore[misc] is set at the top of a module

  #9318 commented on Mar 31, 2022 • 0 new comments

• Module has no attribute error

  #9841 commented on Mar 31, 2022 • 0 new comments

• Inconsistent Treatment of Class Constructor by Protocol

  #10482 commented on Mar 31, 2022 • 0 new comments

• `note:` is orphaned from actual error if there are other problems between it

  #10480 commented on Mar 31, 2022 • 0 new comments

• `@overload` breaks with named tuple and some overloaded functions

  #10470 commented on Mar 31, 2022 • 0 new comments

• Function "builtins.callable" is not valid as a type

  #10434 commented on Mar 31, 2022 • 0 new comments

• mypy should search parent directories for `pyproject.toml` config file

  #10613 commented on Mar 31, 2022 • 0 new comments

• Make any callable compatible with (*args: Any, **kwargs: Any)?

  #5876 commented on Mar 31, 2022 • 0 new comments

• Type parameter scoping seems to disagree with PEP 484

  #11993 commented on Mar 31, 2022 • 0 new comments

• Types of inheritanced class attributes aren't detected

  #10375 commented on Mar 31, 2022 • 0 new comments

• Inconsistent handling of unsolved TypeVars

  #10241 commented on Mar 31, 2022 • 0 new comments

• Type inconsistently and insufficiently refined

  #10224 commented on Mar 31, 2022 • 0 new comments

• "Dynamic metaclass not supported" false positive on generics

  #11672 commented on Mar 31, 2022 • 0 new comments

• `issubclass` doesn't narrow metaclasses

  #11671 commented on Mar 31, 2022 • 0 new comments

• metaclass/__init_subclass__ keyword checking

  #11057 commented on Mar 31, 2022 • 0 new comments

• Overloaded metaclass __or__ does not keep typing

  #11648 commented on Mar 31, 2022 • 0 new comments

• False positive on class definition keyword arguments

  #11036 commented on Mar 31, 2022 • 0 new comments

• Wrong type inference for class with metaclass that acts as descriptor

  #10964 commented on Mar 31, 2022 • 0 new comments

• Erronous 'Incompatible type' when using descriptor in metaclass

  #9758 commented on Mar 31, 2022 • 0 new comments

• mypy Type error for a class with an imported metaclass

  #9185 commented on Mar 31, 2022 • 0 new comments

• Metaclass confusion with properties

  #7945 commented on Mar 31, 2022 • 0 new comments

• mypy silent about incorrect metaclasses-based protocol

  #4272 commented on Mar 31, 2022 • 0 new comments

• Check keyword arguments in class definitions

  #2653 commented on Mar 31, 2022 • 0 new comments

• `asyncio.gather` is sometimes erroneously type-checked

  #10682 commented on Mar 31, 2022 • 0 new comments

• Generator with await not considered an AsyncGenerator

  #10534 commented on Mar 31, 2022 • 0 new comments

• Type of existing variable is not being specified when statement in assignment returns Awaitable

  #10516 commented on Mar 31, 2022 • 0 new comments

• async decorated method type-incompatibility with super superclass

  #9876 commented on Mar 31, 2022 • 0 new comments

• Definition Order Matters For `types.coroutine` Decorator

  #9256 commented on Mar 31, 2022 • 0 new comments

• Expression type contains Any with await

  #8884 commented on Mar 31, 2022 • 0 new comments

• Unexpected behavior regarding async generator

  #5070 commented on Mar 31, 2022 • 0 new comments

• Warn about unused Awaitables (and potentially other objects)

  #2499 commented on Mar 31, 2022 • 0 new comments

• False-positive errors when using `type[T]` (or `Type[T]`) in a PEP 604 type alias

  #12392 commented on Mar 31, 2022 • 0 new comments

• Crash when `(Mutable)Sequence` is imported from `collections.abc` in `typeshed/stdlib/builtins.pyi`

  #11860 commented on Mar 31, 2022 • 0 new comments

• Overriding an overloaded method that returns a value of a Union type

  #10799 commented on Mar 31, 2022 • 0 new comments

• Overloading staticmethods

  #7781 commented on Mar 31, 2022 • 0 new comments

• false positive "error: Type application has too many types (1 expected)" on tuple when annotated as a type

  #11098 commented on Mar 31, 2022 • 0 new comments

• Regression in testAsyncioGatherPreciseType

  #12089 commented on Mar 31, 2022 • 0 new comments

• Missing error when returning None from async function

  #9191 commented on Mar 31, 2022 • 0 new comments

• mypy doesn't take value restrictions into account when solving type variables

  #11880 commented on Mar 31, 2022 • 0 new comments

• Support cyclic definitions in the bound of a TypeVar

  #10874 commented on Mar 31, 2022 • 0 new comments

• Allowing `typing.NoReturn` as a return hint for `__init__` methods

  #10342 commented on Mar 31, 2022 • 0 new comments

• Cannot silence "unused 'type: ignore'" in version specific code

  #8823 commented on Mar 31, 2022 • 0 new comments

• Passing a list as an argument with * leads to confusing error

  #3224 commented on Mar 31, 2022 • 0 new comments

• Generic function can't make function call with mapping unpacking

  #11583 commented on Apr 1, 2022 • 0 new comments

• warn when default values on overloads differ from implementation signature

  #11397 commented on Apr 1, 2022 • 0 new comments

• Spurious “cyclic definition” error when inheriting from and shadowing a class

  #10958 commented on Apr 1, 2022 • 0 new comments

• Mypy signals error with Protocol and __rpow__ method with three arguments

  #10786 commented on Apr 1, 2022 • 0 new comments

• allow_redefinition ignored for functions

  #10765 commented on Apr 1, 2022 • 0 new comments

• Cannot determine type of attribute due to circular reference:

  #10749 commented on Apr 1, 2022 • 0 new comments

• Allow redefinition of class attribute as an instance attribute in a child class

  #10721 commented on Apr 1, 2022 • 0 new comments

• mypy confuses dataclass field name with imported function name

  #10640 commented on Apr 1, 2022 • 0 new comments

• Annotation parsing incorrect when class scope defines same name as import

  #12414 commented on Apr 1, 2022 • 0 new comments

• no error when reading global variable without `global` keyword when assigning to it

  #12139 commented on Apr 1, 2022 • 0 new comments

• Class scope name resolution issue

  #9991 commented on Apr 1, 2022 • 0 new comments

• Mypy issue with python scoping rule

  #8746 commented on Apr 1, 2022 • 0 new comments

• New semanal: Spurious "no binding for nonlocal"

  #7057 commented on Apr 1, 2022 • 0 new comments

• mypy gives 'not defined' error for use after global declaration

  #5732 commented on Apr 1, 2022 • 0 new comments

• Name resolution in mypy doesn't match Python

  #3775 commented on Apr 1, 2022 • 0 new comments

• References to names before they're bound should generate an error

  #686 commented on Apr 1, 2022 • 0 new comments

• `x = x or y` with x undeclared gives no error

  #937 commented on Apr 1, 2022 • 0 new comments

• Using not yet defined variables is allowed

  #2788 commented on Apr 1, 2022 • 0 new comments

• yield from inside list comprehension gives wrong type

  #10188 commented on Apr 1, 2022 • 0 new comments

• Proposal: infer obvious parameters and return types

  #10149 commented on Apr 1, 2022 • 0 new comments

• Union of dicts fail

  #10135 commented on Apr 1, 2022 • 0 new comments

• nullcontext treated as having no __enter__ or __exit__ method

  #10109 commented on Apr 1, 2022 • 0 new comments

• Mypy complains about empty __all__ being untyped

  #10103 commented on Apr 1, 2022 • 0 new comments

• Errors on multi-variable assignments of types

  #10101 commented on Apr 1, 2022 • 0 new comments

• Feature: Del erases types

  #10005 commented on Apr 1, 2022 • 0 new comments

• Wrong return type detected for @overload function

  #9987 commented on Apr 1, 2022 • 0 new comments

• Support glob patterns when configuring `mypy_path`

  #9965 commented on Apr 1, 2022 • 0 new comments

• Enhance `stubgen` to include types for `@dataclass` private methods

  #9986 commented on Apr 1, 2022 • 0 new comments

• Polynomial time-complexity of typing.overload

  #10004 commented on Apr 1, 2022 • 0 new comments

• mypy section now required in setup.cfg differs from documentation

  #9940 commented on Apr 1, 2022 • 0 new comments

• @overload interacts badly with @property even with the `type: ignore` workaround

  #9937 commented on Apr 1, 2022 • 0 new comments

• Confusing line number reported for "Cannot use a covariant type variable as a parameter"

  #9929 commented on Apr 1, 2022 • 0 new comments

• 'Final' (PEP 591) shouldn't apply to '__private' symbols

  #9910 commented on Apr 1, 2022 • 0 new comments

• Stubgen omits namedtuple fields for subclasses.

  #9901 commented on Apr 1, 2022 • 0 new comments

• List[Literal[...]] type being narrowed where it shouldn't be

  #9850 commented on Apr 1, 2022 • 0 new comments

• False negative with callback protocols and types

  #9843 commented on Apr 1, 2022 • 0 new comments

• testing: tests for mypyc failed when gtest was installed on my system

  #9812 commented on Apr 1, 2022 • 0 new comments

• Cannot determine consistent method resolution order (MRO) when inheriting from both `MutableSequence` and `list`

  #11427 commented on Apr 1, 2022 • 0 new comments

• Mypy fails on usage of attrs package

  #9770 commented on Apr 1, 2022 • 0 new comments

• Add flag to ignore 'Skipping analyzing ...'

  #9789 commented on Apr 1, 2022 • 0 new comments

• `@overload`s on `@abstractmethod`s shouldn't need an implementation

  #11488 commented on Apr 1, 2022 • 0 new comments

• `@final` decorator is not honored. no error on override.

  #9618 commented on Apr 1, 2022 • 0 new comments

• [mypyc] support of `@final` types

  #9612 commented on Apr 1, 2022 • 0 new comments

• Error when using Protocol and different __init__() signatures

  #9597 commented on Apr 1, 2022 • 0 new comments

• "Cannot assign multiple types to name" error when using get_dynamic_class_hook

  #9627 commented on Apr 1, 2022 • 0 new comments

• Inconsistent behaviour with return type of derived class

  #9603 commented on Apr 1, 2022 • 0 new comments

• mypy appears to become inefficient for nested ifs (13+ nested ifs)

  #9591 commented on Apr 1, 2022 • 0 new comments

• mypy doesn't realize None is an instance of type(None)

  #9541 commented on Apr 1, 2022 • 0 new comments

• (🐞) false positive with `...` in `Callable` and 'disallow-any-explicit'

  #9496 commented on Apr 1, 2022 • 0 new comments

• Cannot ignore type errors in multiline strings

  #9484 commented on Apr 1, 2022 • 0 new comments

• unused ignore comment changes depending on cache

  #9434 commented on Apr 1, 2022 • 0 new comments

• Assert on Literal field causes spurious "Non-overlapping equality check"

  #9409 commented on Apr 1, 2022 • 0 new comments

• Type fails to get "refined" on branch when `is None`-check happens in variable assignment

  #9229 commented on Apr 1, 2022 • 0 new comments

• Failure to narrow down type of elements of Tuple

  #9159 commented on Apr 1, 2022 • 0 new comments

• Cannot access custom property of union type

  #9053 commented on Apr 1, 2022 • 0 new comments

• Allow Final attributes declared in class body if initialized in ctor

  #8982 commented on Apr 1, 2022 • 0 new comments

• Confusing error message for property with @overloaded function

  #8737 commented on Apr 1, 2022 • 0 new comments

• "maximum semantic analysis iteration count reached" with TypeVar bound to recursive type definition

  #8320 commented on Apr 1, 2022 • 0 new comments

• Should non-overlapping comparisons allowed in assertions?

  #8294 commented on Apr 1, 2022 • 0 new comments

• Reject arguments that are both keyword and positional only

  #8269 commented on Apr 1, 2022 • 0 new comments

• Conditional expression produces different result than if (w/ callable())

  #8265 commented on Apr 1, 2022 • 0 new comments

• Support using Literal on __getattr__ and __getattribute__

  #8203 commented on Apr 1, 2022 • 0 new comments

• Strict equality false negative with 'in' and partial type

  #8182 commented on Apr 1, 2022 • 0 new comments

• __set_name__ isn't checked

  #8057 commented on Apr 1, 2022 • 0 new comments

• MyPy 0.750 slow startup (or hang) on macOS

  #8055 commented on Apr 1, 2022 • 0 new comments

• Running mypy on doctests

  #7966 commented on Apr 1, 2022 • 0 new comments

• mypy fails with mypyc, even with empty file

  #7797 commented on Apr 1, 2022 • 0 new comments

• Give error if __aexit__ returns false but is declared to return bool

  #7665 commented on Apr 1, 2022 • 0 new comments

• else not considered unreachable when if type binder should always match

  #7600 commented on Apr 1, 2022 • 0 new comments

• Use alias names in error messages

  #2968 commented on Apr 1, 2022 • 0 new comments

• Type check global after function definition

  #538 commented on Apr 1, 2022 • 0 new comments

• Give a warning if a local variable is assigned to but never read

  #76 commented on Apr 1, 2022 • 0 new comments

• Will recursive or mutually recursive bounds on TypeVar be supported?

  #1561 commented on Apr 1, 2022 • 0 new comments

• Confusing error message for a missing classmethod decorator

  #11791 commented on Apr 2, 2022 • 0 new comments

• ABCMeta.register support

  #2922 commented on Apr 2, 2022 • 0 new comments

• Odd behavior when creating namedtuple

  #10954 commented on Apr 2, 2022 • 0 new comments

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

  #10818 commented on Apr 2, 2022 • 0 new comments

• build a typeddict from another

  #10585 commented on Apr 2, 2022 • 0 new comments

• Disagreement between MyPy and pytype

  #9913 commented on Apr 2, 2022 • 0 new comments

• Regular automatic typeshed merge testing

  #10540 commented on Apr 2, 2022 • 0 new comments

• Adjusting the signature of a function on the basis of caller types in plugin

  #10216 commented on Apr 2, 2022 • 0 new comments

• Cache only being for successful runs on unchanged codebase

  #12075 commented on Apr 2, 2022 • 0 new comments

• Per type instance metadata

  #8843 commented on Apr 2, 2022 • 0 new comments

• Clarify `zip_safe=False` recommendation for PEP 561

  #8802 commented on Apr 2, 2022 • 0 new comments

• How can I define a typed decorators that call an existing untyped decorators

  #8585 commented on Apr 2, 2022 • 0 new comments

• Subclasses of external classes confusing mypy

  #5445 commented on Apr 3, 2022 • 0 new comments

• Return inside class inside function should be an error

  #1683 commented on Apr 3, 2022 • 0 new comments

• Feature request: type_by_name pragma

  #2103 commented on Apr 3, 2022 • 0 new comments

• Does not find non local variable for inner (dynamic) class

  #6264 commented on Apr 3, 2022 • 0 new comments

• Strict optional doesn't recognize "None in (...)" tests

  #2980 commented on Apr 3, 2022 • 0 new comments

• `sum(List[Decimal]) + sum(List[Decimal])` incompatible type error

  #8814 commented on Apr 3, 2022 • 0 new comments

• Exception variable can leak to other scopes causing strange error messages

  #6647 commented on Apr 3, 2022 • 0 new comments

• mypy fails to report missing "private" __x attribute

  #8267 commented on Apr 3, 2022 • 0 new comments

• Facilitate easy integration of mypy in other tools: use mypy as a module and obtain the results as structured data rather than flat text.

  #2097 commented on Apr 3, 2022 • 0 new comments

• What format should per-file options take?

  #3432 commented on Apr 3, 2022 • 0 new comments

• Potential bug in per-file strict-optional

  #3966 commented on Apr 3, 2022 • 0 new comments

• Document properties of internal type operations

  #3454 commented on Apr 3, 2022 • 0 new comments

• When using `isinstance` to infer a generic type in a block, use any covariant bounds on the type variable.

  #1998 commented on Apr 3, 2022 • 0 new comments

• Inferring constraints for callable types doesn't verify argument counts and kinds

  #702 commented on Apr 3, 2022 • 0 new comments

• Strange behavior when superclass is an unknown argument

  #1069 commented on Apr 3, 2022 • 0 new comments

• "<function> defined here" notes omitted when function is loaded from cache

  #4772 commented on Apr 3, 2022 • 0 new comments

• Improve type inference for recursive protocols

  #3829 commented on Apr 3, 2022 • 0 new comments

• feature_request(clize): Clize syntax support

  #5541 commented on Apr 3, 2022 • 0 new comments

• Dict type does not work with TypeVar?

  #4928 commented on Apr 3, 2022 • 0 new comments

• Redundant cast warning in nested function in a narrowed block

  #5795 commented on Apr 3, 2022 • 0 new comments

• Garbled output of reveal_type(Type[bounded TypeVar])

  #5897 commented on Apr 3, 2022 • 0 new comments

• Idea: short-circuit analysis with `if <platform-check>: return`

  #5964 commented on Apr 3, 2022 • 0 new comments

• Make command line tests faster

  #5966 commented on Apr 3, 2022 • 0 new comments

• Having trouble writing a type signature for a subclass of LoggerAdapter

  #4676 commented on Apr 3, 2022 • 0 new comments

• Overload resolution fails with inline lambda

  #6164 commented on Apr 3, 2022 • 0 new comments

• Base class attribute type does not provide type context in subclass

  #4547 commented on Apr 3, 2022 • 0 new comments

• Confusing message if callable is incompatible due to argument name

  #4530 commented on Apr 3, 2022 • 0 new comments

• Test using error codes in a plugin

  #7325 commented on Apr 3, 2022 • 0 new comments

• Inconsistent errors with superclass Liskov violations

  #7336 commented on Apr 3, 2022 • 0 new comments

• Test running dmypy compiled on Windows before a release

  #7034 commented on Apr 3, 2022 • 0 new comments

• Highlight differences in complex types

  #4531 commented on Apr 3, 2022 • 0 new comments

• Multiple inheritance triggers issues that cannot be resolved

  #4335 commented on Apr 3, 2022 • 0 new comments

• Wrong column reported for errors in function sig type comments

  #7893 commented on Apr 3, 2022 • 0 new comments

• mypy not flagging subclasses with incompatible constructors

  #6967 commented on Apr 3, 2022 • 0 new comments

• RFC: a type comment to ignore expected errors

  #8655 commented on Apr 3, 2022 • 0 new comments

• Support recursive types

  #731 commented on Apr 3, 2022 • 0 new comments

• Detect and flag as errors forward references to variables

  #6303 commented on Apr 3, 2022 • 0 new comments

• False negative involving null checks on optional types

  #5423 commented on Apr 3, 2022 • 0 new comments

• Error context for string interpolation may be wrong

  #7528 commented on Apr 3, 2022 • 0 new comments

• Improve message if user forgot to call a function

  #7687 commented on Apr 4, 2022 • 0 new comments

• mypy does not recognize __qualname__

  #6473 commented on Apr 4, 2022 • 0 new comments

• Different behavior for Optional with if condition `not Var` and `Var is not None`

  #7696 commented on Apr 4, 2022 • 0 new comments

• get_dynamic_class_hook() not invoked on generic types

  #8359 commented on Apr 4, 2022 • 0 new comments

• "Invalid base class" raised when Base Class is a class field

  #3587 commented on Apr 4, 2022 • 0 new comments

• Walrus operators unrecognised in dictionary initialisation of a class attribute

  #8379 commented on Apr 4, 2022 • 0 new comments

• deleting a class-scoped variable that shadows a global variable causes mypy to think it's undefined

  #9600 commented on Apr 4, 2022 • 0 new comments

• Rather confusing error message when argument name is wrong

  #9668 commented on Apr 4, 2022 • 0 new comments

• "Cannot determine type" if first assignment to attribute is unreachable

  #9709 commented on Apr 4, 2022 • 0 new comments

• Module has no attribute "__cached__"

  #9726 commented on Apr 4, 2022 • 0 new comments

• `Union` is incorrectly constructed when `callable()` is used, resulting in a false positive

  #9778 commented on Apr 4, 2022 • 0 new comments

• --disallow-any-generics is allowing defaultdict[Any, ...]

  #9785 commented on Apr 4, 2022 • 0 new comments

• False positive: "Incompatible return value type"

  #10059 commented on Apr 4, 2022 • 0 new comments

• 0.800: Unable to configure subdirectories

  #10045 commented on Apr 4, 2022 • 0 new comments

• Unable to make generic subclass using type variable with value restriction

  #10130 commented on Apr 4, 2022 • 0 new comments

• nested isinstances lose type information

  #10146 commented on Apr 4, 2022 • 0 new comments

• property fail on fget, fset

  #6185 commented on Apr 4, 2022 • 0 new comments

• Only use annotations of `@overload`ed functions to type check the implementation

  #8867 commented on Apr 4, 2022 • 0 new comments

• Extract test infrastructure into a separate package?

  #7228 commented on Apr 4, 2022 • 0 new comments

• Add test that prevents increasing import cycles in the mypy implementation

  #7407 commented on Apr 4, 2022 • 0 new comments

• Consider adding --warn-unreachable to --strict

  #7469 commented on Apr 4, 2022 • 0 new comments

• Clean up kludges for handling metaclasses and Type[...] in check_op_reversible

  #5491 commented on Apr 4, 2022 • 0 new comments

• False negative for restricted self in subclass

  #7861 commented on Apr 4, 2022 • 0 new comments

• Is it possible to define a subscriptable class which can take type arguments and ellipses?

  #8414 commented on Apr 4, 2022 • 0 new comments

• Generic method returning nested class

  #6689 commented on Apr 4, 2022 • 0 new comments

• Clarification of `properly subclassable class` in NewType

  #6701 commented on Apr 4, 2022 • 0 new comments

• [bug] Doesn't ignore explicit any on a single line

  #8759 commented on Apr 4, 2022 • 0 new comments

• Strange custom type for `__init__` behaviour [@curry plugin]

  #8801 commented on Apr 4, 2022 • 0 new comments

• Unexpected limitation of type inference in elif clause

  #6227 commented on Apr 4, 2022 • 0 new comments

• hook for missing imports

  #8105 commented on Apr 4, 2022 • 0 new comments

• pyqtProperty setter always raises an error

  #9911 commented on Apr 4, 2022 • 0 new comments

• Get rid of backward compatibility in flags parsing

  #4119 commented on Apr 4, 2022 • 0 new comments

• warn_unused_ignores is too sensitive: false positives

  #4412 commented on Apr 4, 2022 • 0 new comments

• Support 'on'/'off' for type ignores

  #9483 commented on Apr 4, 2022 • 0 new comments

• Ignore typing errors in individual blocks

  #6948 commented on Apr 4, 2022 • 0 new comments

• Don't require annotations of kwargs initialized to bool, float, int or string constants

  #12352 commented on Apr 4, 2022 • 0 new comments

• Disallow locally-generated types from escaping their function

  #4690 commented on Apr 4, 2022 • 0 new comments

• Class variable gets the type of instance variable

  #4886 commented on Apr 4, 2022 • 0 new comments

• Bare ClassVar should infer type instead of defaulting to Any

  #5587 commented on Apr 4, 2022 • 0 new comments

• Generic ClassVar Type failing

  #5144 commented on Apr 4, 2022 • 0 new comments

• generic super false-posistive error on argument type

  #6224 commented on Apr 4, 2022 • 0 new comments

• Feature Request: type safe function composition

  #8449 commented on Apr 4, 2022 • 0 new comments

• Mypy can't infer parameter types for nested function calls.

  #8666 commented on Apr 4, 2022 • 0 new comments

• Question: How to bound a mixin to a subclass

  #8705 commented on Apr 4, 2022 • 0 new comments

• Constraining a TypeVar to be not None seems impossible.

  #8881 commented on Apr 4, 2022 • 0 new comments

• Type checking seems to stop after 2 isinstance checks

  #6464 commented on Apr 4, 2022 • 0 new comments

• Implement variance checks for recursive protocols.

  #3828 commented on Apr 4, 2022 • 0 new comments

• "error: Name is not defined" and confusing behavior on instance-level classes

  #8482 commented on Apr 4, 2022 • 0 new comments

• Per-module options patterns starting with *

  #8522 commented on Apr 4, 2022 • 0 new comments

• mypy doesn't infer **kwargs types from superclass

  #10079 commented on Apr 4, 2022 • 0 new comments

• inner class of NamedTuple triggers "Invalid statement"

  #10337 commented on Apr 4, 2022 • 0 new comments

• No error for singledispatch on generic types

  #11875 commented on Apr 4, 2022 • 0 new comments

• Type Aliases for ParamSpec don't work

  #11855 commented on Apr 4, 2022 • 0 new comments

• Do not raise "Enum index should be a string [misc]" for subclasses of Enum

  #11039 commented on Apr 4, 2022 • 0 new comments

• Cannot exclude __init__.py without excluding the entire dir

  #10946 commented on Apr 4, 2022 • 0 new comments

• False positive for "Non-overlapping identity check" when comparing Enum variants

  #10910 commented on Apr 4, 2022 • 0 new comments

• 'TypeVar's `bound` parameter does not play nice with overloads(?)

  #10691 commented on Apr 4, 2022 • 0 new comments

• Add a --warn-unused-strictness-exceptions flag

  #4018 commented on Apr 4, 2022 • 0 new comments

• Flag for Different Strictness Levels

  #3507 commented on Apr 4, 2022 • 0 new comments

• Checking call signatures of `Type[C]` objects

  #1831 commented on Apr 4, 2022 • 0 new comments

• Join computed suboptimally with multiple inheritance

  #4373 commented on Apr 6, 2022 • 0 new comments

• False-positive error when using `Callable` in a PEP 604 type alias

  #12393 commented on Apr 6, 2022 • 0 new comments

• Meta issue tracker

  #11201 commented on Apr 7, 2022 • 0 new comments

• Make --namespace-packages the default

  #9636 commented on Mar 31, 2022 • 0 new comments