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build(deps): bump mypy from 1.19.1 to 1.20.0#975

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TomerFi merged 1 commit intodevfrom
dependabot/pip/mypy-1.20.0
Apr 1, 2026
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build(deps): bump mypy from 1.19.1 to 1.20.0#975
TomerFi merged 1 commit intodevfrom
dependabot/pip/mypy-1.20.0

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@dependabot dependabot bot commented on behalf of github Apr 1, 2026

Bumps mypy from 1.19.1 to 1.20.0.

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)

Commits
  • 770d3ca Remove +dev from version
  • 4738ffa Changelog updates for 1.20 (#21109)
  • b4f07a7 Use 'native-parser' instead of 'native-parse' for optional dependency (#21115)
  • 7bec7b7 [mypyc] Document librt and librt.base64 (#21114)
  • c482596 --allow-redefinition-new is no longer experimental (#21110)
  • c916ca3 sdist: include misc/{diff-cache,apply-cache-diff}.py for `mypy/test/test_di...
  • b137e4e [mypyc] Speed up native-to-native imports within the same group (#21101)
  • 978b711 [mypyc] Fix range loop variable off-by-one after loop exit (#21098)
  • 67ada30 [stubtest] Check runtime availability of private types not marked `@type_chec...
  • bdef6ef librt cache tests: build respecting MYPY_TEST_PREFIX (#21097)
  • Additional commits viewable in compare view

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Bumps [mypy](https://github.com/python/mypy) from 1.19.1 to 1.20.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.19.1...v1.20.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added the type: dependencies Pull requests that update a dependency file label Apr 1, 2026
@auto-me-bot auto-me-bot bot added the status: needs review Pull request needs a review label Apr 1, 2026
@auto-me-bot auto-me-bot bot added status: approved Pull request is approved and removed status: needs review Pull request needs a review labels Apr 1, 2026
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github-actions bot commented Apr 1, 2026

Test Results

69 tests   69 ✅  1s ⏱️
 1 suites   0 💤
 1 files     0 ❌

Results for commit 73c163f.

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snyk-io bot commented Apr 1, 2026

Snyk checks have passed. No issues have been found so far.

Status Scan Engine Critical High Medium Low Total (0)
Open Source Security 0 0 0 0 0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

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codecov bot commented Apr 1, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.07%. Comparing base (7275dd6) to head (73c163f).
⚠️ Report is 1 commits behind head on dev.

Additional details and impacted files
@@           Coverage Diff           @@
##              dev     #975   +/-   ##
=======================================
  Coverage   96.07%   96.07%           
=======================================
  Files           1        1           
  Lines         331      331           
=======================================
  Hits          318      318           
  Misses         13       13           
🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

@TomerFi TomerFi merged commit 9153c4f into dev Apr 1, 2026
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@TomerFi TomerFi deleted the dependabot/pip/mypy-1.20.0 branch April 1, 2026 12:00
@auto-me-bot auto-me-bot bot added status: merged Pull request merged and removed status: approved Pull request is approved labels Apr 1, 2026
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