[pull] master from aio-libs:master#548

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pull[bot] merged 1 commit intotj-python:masterfrom

aio-libs:master

Apr 28, 2026

pull Bot commented Apr 28, 2026 •

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          Bump mypy from 1.19.1 to 1.20.2 (#12411)

573313e

Bumps [mypy](https://github.com/python/mypy) from 1.19.1 to 1.20.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/mypy/blob/master/CHANGELOG.md">mypy's
changelog</a>.</em></p>
<blockquote>
<h3>Mypy 1.20.2</h3>
<ul>
<li>Use WAL with SQLite cache and fix close (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21154">21154</a>)</li>
<li>Adjust SQLite journal mode (Ivan Levkivskyi, PR <a
href="https://redirect.github.com/python/mypy/pull/21217">21217</a>)</li>
<li>Correctly aggregate narrowing information on parent expressions
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21206">21206</a>)</li>
<li>Fix regression related to generic callables (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21208">21208</a>)</li>
<li>Fix regression by avoiding widening types in some contexts
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21242">21242</a>)</li>
<li>Fix slicing in non-strict optional mode (Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21282">21282</a>)</li>
<li>mypyc: Fix match statement semantics for &quot;or&quot; pattern
(Shantanu, PR <a
href="https://redirect.github.com/python/mypy/pull/21156">21156</a>)</li>
<li>mypyc: Fix issue with module dunder attributes (Piotr Sawicki, PR <a
href="https://redirect.github.com/python/mypy/pull/21275">21275</a>)</li>
<li>Initial support for Python 3.15.0a8 (Marc Mueller, PR <a
href="https://redirect.github.com/python/mypy/pull/21255">21255</a>)</li>
</ul>
<h3>Acknowledgements</h3>
<p>Thanks to all mypy contributors who contributed to this release:</p>
<ul>
<li>A5rocks</li>
<li>Aaron Wieczorek</li>
<li>Adam Turner</li>
<li>Ali Hamdan</li>
<li>asce</li>
<li>BobTheBuidler</li>
<li>Brent Westbrook</li>
<li>Brian Schubert</li>
<li>bzoracler</li>
<li>Chris Burroughs</li>
<li>Christoph Tyralla</li>
<li>Colin Watson</li>
<li>Donghoon Nam</li>
<li>E. M. Bray</li>
<li>Emma Smith</li>
<li>Ethan Sarp</li>
<li>George Ogden</li>
<li>getzze</li>
<li>grayjk</li>
<li>Gregor Riepl</li>
<li>Ivan Levkivskyi</li>
<li>James Hilliard</li>
<li>James Le Cuirot</li>
<li>Jeremy Nimmer</li>
<li>Joren Hammudoglu</li>
<li>Kai (Kazuya Ito)</li>
<li>kaushal trivedi</li>
<li>Kevin Kannammalil</li>
<li>Lukas Geiger</li>
<li>Łukasz Langa</li>
<li>Marc Mueller</li>
<li>Michael R. Crusoe</li>
<li>michaelm-openai</li>
<li>Neil Schemenauer</li>
<li>Piotr Sawicki</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/mypy/commit/145a062651b5f9996b75ef32b7040bd2e885ed82"><code>145a062</code></a>
Bump version to 1.20.2</li>
<li><a
href="https://github.com/python/mypy/commit/81cd49215c288eacb987de066f02daff2553b7c7"><code>81cd492</code></a>
Fix slicing with nonstrict optional (<a
href="https://redirect.github.com/python/mypy/issues/21282">#21282</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/908d3441eecbaa2a6193165317177db834d7ca1a"><code>908d344</code></a>
[mypyc] Set dunder attrs when adding module to sys.modules (<a
href="https://redirect.github.com/python/mypy/issues/21275">#21275</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/ba28610fac9d2b33be210ca8dcfe4bc47b7af424"><code>ba28610</code></a>
Initial support for Python 3.15.0a8 (<a
href="https://redirect.github.com/python/mypy/issues/21255">#21255</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/7b0e09f48dbd3717ed008a273cd17e8e960c2037"><code>7b0e09f</code></a>
Fix match statement semantics for &quot;or&quot; pattern (<a
href="https://redirect.github.com/python/mypy/issues/21156">#21156</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/92b74f226de62f7505f5ef5cb158e8ec9c58b8b7"><code>92b74f2</code></a>
Avoid widening types in conditional_types (<a
href="https://redirect.github.com/python/mypy/issues/21242">#21242</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/0dcbfaa40b0e360a16baea9cf851955375d91b54"><code>0dcbfaa</code></a>
Fix is_overlapping_types for generic callables (<a
href="https://redirect.github.com/python/mypy/issues/21208">#21208</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/210f518dede35292033ef0d387847406a0ccef8f"><code>210f518</code></a>
Correctly aggregate narrowing information on parent expressions (<a
href="https://redirect.github.com/python/mypy/issues/21206">#21206</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/c34530e53a10e385d8b0f1af4baa88a596b5ceaa"><code>c34530e</code></a>
Only set journal mode in coordinator (<a
href="https://redirect.github.com/python/mypy/issues/21217">#21217</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/79a3ec6d01b56a27c00e9b3320c2b1d4d73a77f9"><code>79a3ec6</code></a>
Use WAL with SQLite cache, fix close (<a
href="https://redirect.github.com/python/mypy/issues/21154">#21154</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/mypy/compare/v1.19.1...v1.20.2">compare
view</a></li>
</ul>
</details>
<br />

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