Update default and latest Python versions for 3.14 (#20725)
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Summary
--

Closes #19467 and also removes the warning about using Python 3.14
without
preview enabled.

I also bumped `PythonVersion::default` to 3.9 because it reaches EOL
this month,
but we could also defer that for now if we wanted.

The first three commits are related to the `latest` bump to 3.14; the
fourth commit
bumps the default to 3.10.

Note that this PR also bumps the default Python version for ty to 3.10
because
there was a test asserting that it stays in sync with
`ast::PythonVersion`.

Test Plan
--

Existing tests

I spot-checked the ecosystem report, and I believe these are all
expected. Inbits doesn't specify a target Python version, so I guess
we're applying the default. UP007, UP035, and UP045 all use the new
default value to emit new diagnostics.
This commit is contained in:
Brent Westbrook 2025-10-07 12:23:11 -04:00 committed by GitHub
parent 8fb29eafb8
commit 88c0ce3e38
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88 changed files with 1640 additions and 1123 deletions

1
crates/ty/docs/cli.md generated
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@ -86,6 +86,7 @@ over all configuration files.</p>
<li><code>3.11</code></li>
<li><code>3.12</code></li>
<li><code>3.13</code></li>
<li><code>3.14</code></li>
</ul></dd><dt id="ty-check--quiet"><a href="#ty-check--quiet"><code>--quiet</code></a>, <code>-q</code></dt><dd><p>Use quiet output (or <code>-qq</code> for silent output)</p>
</dd><dt id="ty-check--respect-ignore-files"><a href="#ty-check--respect-ignore-files"><code>--respect-ignore-files</code></a></dt><dd><p>Respect file exclusions via <code>.gitignore</code> and other standard ignore files. Use <code>--no-respect-gitignore</code> to disable</p>
</dd><dt id="ty-check--typeshed"><a href="#ty-check--typeshed"><code>--typeshed</code></a>, <code>--custom-typeshed-dir</code> <i>path</i></dt><dd><p>Custom directory to use for stdlib typeshed stubs</p>