dependabot[bot] opened a new pull request, #27532: URL: https://github.com/apache/beam/pull/27532
Updates the requirements on [cython](https://github.com/cython/cython) to permit the latest version. <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/cython/cython/blob/master/CHANGES.rst";>cython's changelog</a>.</em></p> <blockquote> <h1>3.0.0 unified release notes</h1> <p>Cython 3.0.0 has been a very large effort that cleaned up many old warts, introduced many new features, and introduces a couple of intentional behaviour changes, even though the goal remained to stay compatible as much as possible with Cython 0.29.x. For details, see the <code>migration guide</code>_.</p> <p>.. _<code>migration guide</code>: <a href="https://cython.readthedocs.io/en/latest/src/userguide/migrating_to_cy30.html";>https://cython.readthedocs.io/en/latest/src/userguide/migrating_to_cy30.html</a></p> <p>As the development was spread out over several years, a lot of things have happened in the meantime. Many crucial bugfixes and some features were backported to 0.29.x and are not strictly speaking "new" in Cython 3.0.0.</p> <h1>Major themes in 3.0.0</h1> <h2>Compatibility with Python</h2> <p>Since Cython 3.0.0 started development, CPython 3.8-3.11 were released. All these are supported in Cython, including experimental support for the in-development CPython 3.12. On the other end of the spectrum, support for Python 2.6 was dropped.</p> <p>Cython interacts very closely with the C-API of Python, which is where most of the adaptation work happens. Independently, Cython strives to be able to parse newer Python constructs for use with its <code>pure python</code>_ mode, which has been a focus. In short, this allows to compile a wider range of Python code into optimized C code.</p> <p>.. _<code>pure python</code>: <a href="https://cython.readthedocs.io/en/latest/src/tutorial/pure.html";>https://cython.readthedocs.io/en/latest/src/tutorial/pure.html</a></p> <p>Implemented PEPs ^^^^^^^^^^^^^^^^</p> <ul> <li><code>PEP-3131</code>_: Supporting Non-ASCII Identifiers (Github issue :issue:<code>2601</code>)</li> <li><code>PEP-479</code>_: <code>generator_stop</code> (enabled by default for <code>language_level=3</code>) (Github issue :issue:<code>2580</code>)</li> <li><code>PEP-487</code>_: Simpler customisation of class creation (Github issue :issue:<code>2781</code>)</li> <li><code>PEP-563</code>_: Postponed Evaluation of Annotations (Github issue :issue:<code>3285</code>)</li> <li><code>PEP-570</code>_: Positional-Only Parameters (Github issue :issue:<code>2915</code>)</li> <li><code>PEP-572</code>_: Assignment Expressions (a.k.a. the walrus operator <code>:=</code>) (Github issue :issue:<code>2636</code>)</li> <li><code>PEP-590</code>_: Vectorcall protocol (Github issue :issue:<code>2263</code>)</li> <li><code>PEP-614</code>_: Relaxing Grammar Restrictions On Decorators (Github issue :issue:<code>4570</code>)</li> </ul> <p>Typing support in the sense of <code>PEP-484</code>_ (Github issues :issue:<code>3949</code>, :issue:<code>4243</code>) and <code>PEP-560</code>_ (Github issues :issue:<code>2753</code>, :issue:<code>3537</code>, :issue:<code>3764</code>) was also improved.</p> <p>.. _<code>PEP-3131</code>: <a href="https://www.python.org/dev/peps/pep-3131";>https://www.python.org/dev/peps/pep-3131</a> .. _<code>PEP-479</code>: <a href="https://www.python.org/dev/peps/pep-0479";>https://www.python.org/dev/peps/pep-0479</a></p> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/cython/cython/commit/2f3a781dcca092ce95fbfef2736b12b0d1ab50dd";><code>2f3a781</code></a> Prepare release of Cython 3.0.0.</li> <li><a href="https://github.com/cython/cython/commit/ac4f0bbf1e0b60e22667836fc757096752d8ebd1";><code>ac4f0bb</code></a> Update changelog.</li> <li><a href="https://github.com/cython/cython/commit/039ef7c6242b3b6a18363ff22ead04f4e7cce676";><code>039ef7c</code></a> In Py2, the extension type might get cleaned up before the objects at system ...</li> <li><a href="https://github.com/cython/cython/commit/8edd90a951029f7c3297e2e2beeab39166cb7760";><code>8edd90a</code></a> Prepare second release candidate 3.0.0rc2.</li> <li><a href="https://github.com/cython/cython/commit/7efee97ba87a7469e77497fec5d494d62fa704ae";><code>7efee97</code></a> Update changelog.</li> <li><a href="https://github.com/cython/cython/commit/c0a3556744577d4cfdf3e20a2f3fd164f21272ef";><code>c0a3556</code></a> Test including "complex.h" in MSVC (<a href="https://redirect.github.com/cython/cython/issues/5527";>#5527</a>)</li> <li><a href="https://github.com/cython/cython/commit/36a370289cd41604b65054b49a67cc746f2b518d";><code>36a3702</code></a> Write the version to stderr as before, but only if stderr is actually capture...</li> <li><a href="https://github.com/cython/cython/commit/8169009227f565a39f4cdbd13ae73437855faab2";><code>8169009</code></a> Update changelog and version.</li> <li><a href="https://github.com/cython/cython/commit/864e56359a83125ab9f89450b385099f1cf6da7f";><code>864e563</code></a> Support hex constants in enums (<a href="https://redirect.github.com/cython/cython/issues/5525";>GH-5525</a>)</li> <li><a href="https://github.com/cython/cython/commit/0c6141a1bfef1a018a28587a71ec47e2b14db152";><code>0c6141a</code></a> Document <a href="https://github.com/cython";><code>@​cython</code></a>.with_gil (<a href="https://redirect.github.com/cython/cython/issues/5522";>GH-5522</a>)</li> <li>Additional commits viewable in <a href="https://github.com/cython/cython/compare/0.9.6.14...3.0.0";>compare view</a></li> </ul> </details> <br /> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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