Bump mypy from 2.0.0 to 2.1.0

[dependabot]

Bumps mypy from 2.0.0 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)

Commits

• c1c336d Remove +dev from version
• 74df14b Add changelog for mypy 2.1 (#21464)
• 022d9bc Revert "TypeForm: Enable by default (#21262)"
• 8826288 [mypyc] Document librt.random (#21463)
• 3f4067b Bump librt version to 0.11.0 (#21458)
• 2b1eb58 [mypyc] Enable incremental self-compilation (#21369)
• 8152f4a Respect file config comments for stale modules (#21444)
• 116d60b Fix nondeterminism from nonassociativity of overload joins (#21455)
• 6c4af8e Fix function call message change for small number of args (#21432)
• 4b8fdca [mypyc] Add librt.random module (#21433)
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[github-actions]

🤖 Claude Code Review

Code Review: mypy 2.0.0 → 2.1.0 Bump

Code Quality

• ✅ Style guide: Single version pin change, no style concerns.
• ✅ No commented-out code
• ✅ Meaningful variable names: N/A
• ✅ DRY principle: N/A
• ✅ Defects: No logic issues; straightforward dependency version bump in pyproject.toml:77.
• ✅ CLAUDE.md: No issues — project config is environment-agnostic.

Testing

• ✅ Unit/integration tests: N/A for a dev-tooling dependency bump.
• ✅ Coverage: N/A — mypy is a lint-group dependency, not runtime.

Documentation

• ❌ CHANGELOG.md: No CHANGELOG entry for this bump. Dependency updates should be logged.
• ✅ README / API docs: No changes needed.
• ✅ Markdown formatting: N/A

Security

• ✅ No hardcoded credentials
• ✅ No sensitive data
• ✅ No license files (.lic / AQAAAD)

---

Summary: This is a clean, minimal bump. The only gap is a missing CHANGELOG entry. Everything else is fine.

Automated code review analyzing defects and coding standards

[github-actions]

🤖 Claude Code Review

PR Code Review

This PR bumps mypy from 2.0.0 to 2.1.0 in pyproject.toml.

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Code Quality

• ✅ Style guide: Single-line version bump, no style concerns.
• ✅ No commented-out code
• ✅ Meaningful variable names: N/A
• ✅ DRY principle: N/A
• ✅ Defects: No logic changes — pure dependency version update. No bugs, race conditions, or security concerns introduced.
• ✅ CLAUDE.md: N/A for this change.

Testing

• ✅ Unit/integration tests: No new code to test.
• ✅ Coverage: N/A — dependency bump only.
• ⚠️ Edge cases: mypy 2.1.0 may introduce new type-checking strictness or changed error codes that could affect existing code. The CI passing (as indicated by the merge commits in git history) suggests no regressions were found.

Documentation

• ✅ README/API docs: No update needed for a dev-dependency bump.
• ✅ CHANGELOG.md: Not present in this repo — no action needed.
• ✅ Markdown formatting: N/A

Security

• ✅ No hardcoded credentials
• ✅ No sensitive data
• ✅ No license files (.lic) checked in
• ✅ No AQAAAD-prefixed strings

---

Summary

Approved. This is a straightforward dependency bump for a lint-only tool (mypy is in the lint dependency group). No functional code changes, no documentation concerns, no security issues. The version bump is consistent with the dependabot commit message in the branch history.

Automated code review analyzing defects and coding standards