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Bump mypy from 1.20.2 to 2.1.0 - #759

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Bump mypy from 1.20.2 to 2.1.0#759
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dependabot/uv/mypy-2.1.0

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Bumps mypy from 1.20.2 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

  • Enable incremental self-compilation (Vaggelis Danias, PR 21369)
  • 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)

... (truncated)

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@dependabot
Bump mypy from 1.20.2 to 2.1.0
c7d45bb 
Bumps [mypy](https://github.com/python/mypy) from 1.20.2 to 2.1.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.20.2...v2.1.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python:uv Pull requests that update python:uv code labels Jun 3, 2026
@kci-pr-agent

kci-pr-agent Bot commented Jun 3, 2026

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Title

Bump mypy from 1.20.2 to 2.1.0

Description

Bump mypy upper version to <3.0
Update linter dependency constraint

Changes walkthrough 📝

Relevant files
Configuration changes
pyproject.toml
Extend mypy version bound to <3                                                   

pyproject.toml

  • Changed mypy constraint from "<2" to "<3"
  • Updated linter dependencies section
    		• +1/-1     
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    @kci-pr-agent

    kci-pr-agent Bot commented Jun 3, 2026

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    PR Reviewer Guide 🔍

    Here are some key observations to aid the review process:

    ⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪
    🧪 No relevant tests
    🔒 No security concerns identified
    ⚡ Recommended focus areas for review

    バージョン範囲の検証

    mypyの上限を<3に拡張したことで、新しい2.x系列との互換性や型エラーの変化を確認してください。

     
    "mypy>=1,<3 ; python_version >= '3.13'",
    CI設定の更新

    新しいMypyバージョンを導入後、CI/CDの型チェックジョブが正常に実行されるか確認が必要です。

     
    "mypy>=1,<3 ; python_version >= '3.13'",

    @kci-pr-agent

    kci-pr-agent Bot commented Jun 3, 2026

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    PR Code Suggestions ✨

    No code suggestions found for the PR.

    @yuji38kwmt yuji38kwmt closed this Jul 23, 2026
    @dependabot @github

    dependabot Bot commented on behalf of github Jul 23, 2026

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    OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

    If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

    @dependabot
    dependabot Bot deleted the dependabot/uv/mypy-2.1.0 branch July 23, 2026 10:26
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