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Bump mypy from 1.4.1 to 1.14.1#150

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Bump mypy from 1.4.1 to 1.14.1#150
dependabot[bot] wants to merge 1 commit intomasterfrom
dependabot/pip/mypy-1.14.1

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@dependabot dependabot bot commented on behalf of github Apr 7, 2026

Bumps mypy from 1.4.1 to 1.14.1.

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 1.20

We’ve just uploaded mypy 1.20.0 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.

Planned Changes to Defaults and Flags in Mypy 2.0

As a reminder, we are planning to enable --local-partial-types by default in mypy 2.0, which will likely be the next feature release. This will often require at least minor code changes. This option is implicitly enabled by mypy daemon, so this makes the behavior of daemon and non-daemon modes consistent.

Note that this release improves the compatibility of --local-partial-types significantly to make the switch easier (see below for more).

This can also be configured in a mypy configuration file (use False to disable):

local_partial_types = True

For more information, refer to the documentation.

We will also enable --strict-bytes by default in mypy 2.0. This usually requires at most minor code changes to adopt. For more information, refer to the documentation.

Finally, --allow-redefinition-new will be renamed to --allow-redefinition. If you want to continue using the older --allow-redefinition semantics which are less flexible (e.g. limited support for conditional redefinitions), you can switch to --allow-redefinition-old, which is currently supported as an alias to the legacy --allow-redefinition behavior. To use --allow-redefinition in the upcoming mypy 2.0, you can't use --no-local-partial-types. For more information, refer to the documentation.

Better Type Narrowing

Mypy's implementation of narrowing has been substantially reworked. Mypy will now narrow more aggressively, more consistently, and more correctly. In particular, you are likely to notice new narrowing behavior in equality expressions (==), containment expressions (in),

... (truncated)

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Note

Low Risk
Low risk since this only updates a dev-only dependency lockfile, but it may change type-check results and CI behavior due to new mypy rules and updated dependency constraints.

Overview
Bumps the dev dependency mypy in poetry.lock from 1.4.1 to 1.14.1, updating its Python requirement to >=3.8, adjusting dependency spec names/versions (notably typing_extensions), and refreshing the locked wheel hashes/extras.

Also tweaks the locked zipp entry to include a python_version < "3.10" marker and updates the lock content-hash accordingly.

Reviewed by Cursor Bugbot for commit 4432a2c. Bugbot is set up for automated code reviews on this repo. Configure here.

Bumps [mypy](https://github.com/python/mypy) from 1.4.1 to 1.14.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.4.1...v1.14.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.14.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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dependabot bot commented on behalf of github Apr 7, 2026

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@dependabot dependabot bot added the security Security review or vulnerability follow-up label Apr 7, 2026
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