Skip to content

chore(deps-dev): Bump mypy from 1.20.2 to 2.2.0#1156

Merged
acroca merged 1 commit into
mainfrom
dependabot/uv/mypy-2.2.0
Jul 16, 2026
Merged

chore(deps-dev): Bump mypy from 1.20.2 to 2.2.0#1156
acroca merged 1 commit into
mainfrom
dependabot/uv/mypy-2.2.0

Conversation

@dependabot

@dependabot dependabot Bot commented on behalf of github Jul 15, 2026

Copy link
Copy Markdown
Contributor

Bumps mypy from 1.20.2 to 2.2.0.

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Packaging changes

Mypy 2.3

We've just uploaded mypy 2.3.0 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.

The Upcoming Switch to the New Native Parser

We are planning to enable the new native parser (--native-parser) by default soon. We recommend that you test the native parser in your projects and report any issues in the mypy issue tracker.

Mypyc Free-threading Memory Safety

Free-threaded Python builds that don't have the GIL require additional synchronization primitives or lock-free algorithms to ensure memory safety when there are race conditions (for example, when a thread reads a list item while another thread writes the same list item concurrently). This release greatly improves memory safety of free threading.

List operations are now memory-safe on free threaded Python builds, even in the presence of race conditions. This has some performance cost. For list-heavy workloads, using librt.vecs.vec instead of list is often significantly faster, but note that vec is not (and likely won't be) fully memory safe, and the user is expected to avoid race conditions. The newly introduced librt.threading.Lock helps with this. Using variable-length tuples can also be more efficient than lists, since tuples are immutable and don't require expensive synchronization to ensure memory safety.

Instance attribute access is also (mostly) memory safe now on free-threaded builds in the presence of race conditions. We are planning to fix the remaining unsafe cases in a future release.

Full list of changes:

  • Make attribute access memory safe on free-threaded builds (Jukka Lehtosalo, PR 21705)
  • Fix unsafe borrowing of instance attributes with free-threading (Jukka Lehtosalo, PR 21688)
  • Make list get/set item more memory safe on free-threaded builds (Jukka Lehtosalo, PR 21683)
  • Don't borrow list items on free-threaded builds (Jukka Lehtosalo, PR 21679)
  • Make multiple assignment from list memory-safe on free-threaded builds (Jukka Lehtosalo, PR 21684)

... (truncated)

Commits

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python:uv Pull requests that update python:uv code labels Jul 15, 2026
@dependabot dependabot Bot requested review from a team as code owners July 15, 2026 13:25
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python:uv Pull requests that update python:uv code labels Jul 15, 2026
@codecov

codecov Bot commented Jul 15, 2026

Copy link
Copy Markdown

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.78%. Comparing base (1c489da) to head (3b2644d).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1156      +/-   ##
==========================================
- Coverage   82.85%   82.78%   -0.07%     
==========================================
  Files         123      123              
  Lines       10127    10127              
==========================================
- Hits         8391     8384       -7     
- Misses       1736     1743       +7     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

@acroca

acroca commented Jul 15, 2026

Copy link
Copy Markdown
Member

@dependabot rebase

Bumps [mypy](https://github.com/python/mypy) from 1.20.2 to 2.2.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.20.2...v2.2.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.2.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/uv/mypy-2.2.0 branch from 3040197 to 3b2644d Compare July 15, 2026 15:23
@acroca acroca added this pull request to the merge queue Jul 16, 2026
Merged via the queue into main with commit 2ca5b28 Jul 16, 2026
18 of 19 checks passed
@dependabot dependabot Bot deleted the dependabot/uv/mypy-2.2.0 branch July 16, 2026 05:29
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

dependencies Pull requests that update a dependency file python:uv Pull requests that update python:uv code

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant