Fixes #12344

FWIW this is unsafe (since we don't know where the mixin will appear in
the MR...

When I was working on a different PR for Mypy, I came across these
functions:

```python
...

Fixes #10289

Unless I am missing something, this indeed looks safe, so I am going to
allow t...

Fixes #10244
Fixes #13515

This fixes only the crash part, I am going to fix also the embarr...

Fixes: #14101

This prevents non-error messages (e.g. warnings) from causing dmypy to
return ...

Fixes #12744

The fix is straightforward. Current logic can produce a random mix of
old and n...

IIRC `ImportedName` was used by old semantic analyzer, that is long gone
now.

Ref #12840
Fixes #11871
Fixes #14089

This is an alternative implementation to two existing...

In general, mypy doesn't promise to be able to check the remainder of
your code in the presence...

Fixes #14030

FWIW this looks like an acceptable compromise after discussions in the
issue. ...

Fixes #9654

Seems to be quite straightforward. Erased types should never be stored
on variab...

Fixes https://github.com/python/mypy/issues/10976
Fixes https://github.com/python/mypy/issues/1...

It looks like these are not used anymore (we will see if tests pass).

`Iterable` does not implement `__len__`, so passing a `Generator` would
always evaluate to `tru...

Fixes #14027 (issue was surfaced by #13509)

Fixes #14046. Similar to #13733

Best reviewed with hide whitespace.

Fixes #14048

Co-authored-by: Jelle Zijlstra <[email protected]>

Fixes #14002

Co-authored-by: Shantanu <[email protected]>

#13768 had a bug so that errors were sometimes silenced in files that
were under a directory in...

By using tabs instead of spaces for indentation in the emitted C code we
are able to reduce the...

Fixes #14031

It turns out premature optimization is the root of all evil. (It turns
out thi...

Tried to make it in a way such that we can add more rules for platforms
we want to filter out i...

Fix Python 3.10 `|` union syntax in type aliases, when one of
the operands is a type alias or a...

Fixes #12109.

The original issue reported that the bug had to do with the use of the
`--foll...

Ref #12840

It looks like from the point of view of type checking support is quite
easy. Myp...

Discovered as part of #14017

Fixes #14000

This will introduce some minor perf penalty, but only for code that
actually u...

Introduced in #14003

See #13681

More clearly point out the speed cost and the alternative of installing
stub pack...

Closes #13243.

For the most part, in order to determine which fields where worth
pattern mat...

Closes https://github.com/mypyc/mypyc/issues/956

This was originally a part of #13953, see
h...

Fixes https://github.com/mypyc/mypyc/issues/896

This changes our importing logic to be more consistent and to treat
import statements more like...

As per the TODO comments, this PR removes some unnecessary `assert`s in
`mypy/ipc.py`. When the...

There aren't really any big changes required over on mypy's side (I was
worried there would be ...

Next release is 1.0 so also update the comments.
NOTE: Should we go with 1.0 or 1.0.0? I chose ...

Fixes some of #13965, fixes #12749

We also need to modify attribute access logic (this is the...

Fixes #13066

During the semanal phase, mypy opts to ignore and skip processing any
malformed...

Don't think there's a test case corresponding to the issue in #13966

Closes #13890

Makes sure we continue to cherry pick
https://github.com/python/mypy/pull/13961

This is allegedly causing large performance problems, see 13821

typeshed/8231 had zero hits o...

It might be useful to run mypy_primer without promotions in typeshed.
This would give us more c...

Closes #13360

It's okay to take an address of a register, pass it to a function that
initializes the register...

This fixes handling of bitmap arguments used to track default values of
arguments with native i...

bump these two dependencies.

Also:
- add all supported python versions to black config
- ch...

This doesn't change any test cases.

Related to #13917 and #13908. This handles situations involving
per-module re-exports correctly...

Co-authored-by: Shantanu <[email protected]>

This adds support for match statements for the partially-defined
variables check. This should c...

It is no longer needed. `typeshed` defines `contextlib.contextmanager`
and `contextlib.asynccon...

Changes:
- Removes notes about old semantic analyzer, it is long gone
- Removes outdated `cont...

Also only suggest public API for attribute access suggestions

Fixes #13908

Accomplishes a ...

- Mention PEP 604 unions
- Separate out the 3.8 stuff to keep things more readable
- Remove me...

This is based on the idea of https://github.com/JelleZijlstra/autotyping
Other magic methods ca...

We're dealing with the get descriptor here but calling it `__set__`,
probably a copy-paste from...

- Show complete code examples for dynamic typing
- Make clearer that the insides of dynamically...

This covers some cases from the PEP646 documentation which says we
should error when there are ...

This implements the most basic support for the *args feature but various
edge cases are not han...

Avoid creating duplicate bitmap arguments for the constructor. These
would generate broken C wi...

It was very confusing, because `int` and `str` were messed up.

Sync typeshed

Source commit:

https://github.com/python/typeshed/commit/51e18a860129b792123...

Otherwise the commit it wants to cherry-pick doesn't exist:
https://github.com/python/mypy/acti...

Fixes #10013

See https://github.com/python/mypy/pull/13851#issuecomment-1274345759
for motiv...

A separate error code for `truthy-function` so it can be enabled by default.

Closes #12621

...

After we started using black upload-pypi broke because we switched the
style of quotes. This re...

This adds a new Pep646 test case which demonstrates that like with the
constraints from PR #137...

This will hint people affected by #13851 what to do to silence this. I
am not doing it for all ...

Fixes #13819.

If an `attrs` class does not generate the `__init__` method for whatever
reason, the method is ...

Resolves #13812

This will give us more confidence that compiled mypy works on 3.11.

This fixes the testErrorOutput and testCompileMypyc test cases by
setting up the module search ...

We no longer support Python 3.6.

Fixes #13825

We add also types encountered in locally defined symbols, not just
expressions....

Since all tests pass in CI and we build wheels

Closes #3948

This however gives a note instead of an error, so that type checking
result wil...

This fixes couple issues discovered in
https://github.com/python/mypy/pull/13790:
* A crash on...

The motivation here is to not penalize people who try early features
with breaking their CI. We...

Ref #13685

Co-authored-by: Nikita Sobolev <[email protected]>

Our current isort config doesn't fully work for the pre-commit hook.
Whereas in tox isort is ca...

Fixes #13822

Fixes #13795

Calculating tuple fallbacks on the fly creates a cycle between joins and
subtyp...

`typed_ast` is not directly used in tests, and is never imported on
Python 3.8+.
Its requireme...

For now we run non-compiled version. (I tried compiling mypy locally and
it failed with couple ...

This fixes the last failing test on Python 3.11

Source commit:

https://github.com/python/typeshed/commit/8b41b1337b34529f3c328d4167d8c902c36f...

Fixes #13806

This PR adds support for a FORCE_COLOR environment variable. If both
MYPY_FORCE...

Closes #10728

Co-authored-by: Shantanu <[email protected]>

This should help people who need to `import mypy.reports` directly, see
https://github.com/pyth...

See microsoft/pyright#4001.

- TypeVar bounds that contain TypeVars are not well-specified and...

Fixes #13760
Fixes #6060
Fixes #12824

This is a right thing to do, but let's what `mypy_pr...