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Bump mypy from 1.19.1 to 2.1.0

Open
Number: #497
Type: Pull Request
State: Open
Author: dependabot[bot] dependabot[bot]
Association: Unknown
Comments: 1
Created: April 27, 2026 at 03:39 PM UTC
(about 1 month ago)
Updated: May 19, 2026 at 08:57 PM UTC
(22 days ago)
Labels:
dependencies python
Description:

Bumps mypy from 1.19.1 to 2.1.0.

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 2.1

We’ve just uploaded mypy 2.1.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

librt.vecs: Fast Growable Array Type for Mypyc

The new librt.vecs module provides an efficient growable array type vec that is optimized for mypyc use. It provides fast, packed arrays with integer and floating point value types, which can be several times faster than list, and tens of times faster than array.array in code compiled using mypyc. It also supports nested vec objects and non-value-type items, such as vec[vec[str]].

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo.

librt.random: Fast Pseudo-Random Number Generation

The new librt.random module provides fast pseudo-random number generation that is optimized for code compiled using mypyc. It can be 3x to 10x faster than the stdlib random module in compiled code.

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo (PR 21433).

Mypyc Improvements

  • Make compilation order with multiple files consistent (Piotr Sawicki, PR 21419)
  • Fix crash on accessing StopAsyncIteration (Piotr Sawicki, PR 21406)
  • Fix incremental compilation with separate flag (Vaggelis Danias, PR 21299)

Fixes to Crashes

  • Fix crash on partial type with --allow-redefinition and global declaration (Jukka Lehtosalo, PR 21428)
  • Fix broken awaitable generator patching (Ivan Levkivskyi, PR 21435)

Changes to Messages

... (truncated)

Commits

Package Dependencies
Package:
mypy
Ecosystem:
pip
Version Change:
1.19.1 → 2.1.0
Update Type:
Major
Technical Details
ID: 15855725
UUID: 4336964034
Node ID: PR_kwDOBh1EQc7WBdG6
Host: GitHub
Repository: python-openapi/openapi-spec-validator