Bump cython from 3.0.0rc2 to 3.0.0

[dependabot]

Bumps cython from 3.0.0rc2 to 3.0.0.

Changelog

Sourced from cython's changelog.

3.0.0 unified release notes

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 migration guide_.

.. _migration guide: https://cython.readthedocs.io/en/latest/src/userguide/migrating_to_cy30.html

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.

Major themes in 3.0.0

Compatibility with Python

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.

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 pure python_ mode, which has been a focus. In short, this allows to compile a wider range of Python code into optimized C code.

.. _pure python: https://cython.readthedocs.io/en/latest/src/tutorial/pure.html

Implemented PEPs ^^^^^^^^^^^^^^^^

• PEP-3131_: Supporting Non-ASCII Identifiers (Github issue :issue:2601)
• PEP-479_: generator_stop (enabled by default for language_level=3) (Github issue :issue:2580)
• PEP-487_: Simpler customisation of class creation (Github issue :issue:2781)
• PEP-563_: Postponed Evaluation of Annotations (Github issue :issue:3285)
• PEP-570_: Positional-Only Parameters (Github issue :issue:2915)
• PEP-572_: Assignment Expressions (a.k.a. the walrus operator :=) (Github issue :issue:2636)
• PEP-590_: Vectorcall protocol (Github issue :issue:2263)
• PEP-614_: Relaxing Grammar Restrictions On Decorators (Github issue :issue:4570)

Typing support in the sense of PEP-484_ (Github issues :issue:3949, :issue:4243) and PEP-560_ (Github issues :issue:2753, :issue:3537, :issue:3764) was also improved.

.. _PEP-3131: https://www.python.org/dev/peps/pep-3131 .. _PEP-479: https://www.python.org/dev/peps/pep-0479

... (truncated)

Commits

• 2f3a781 Prepare release of Cython 3.0.0.
• ac4f0bb Update changelog.
• 039ef7c In Py2, the extension type might get cleaned up before the objects at system ...
• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[codecov]

Codecov Report

Merging #907 (e63c382) into master (863234e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #907   +/-   ##
=======================================
  Coverage   99.74%   99.74%           
=======================================
  Files           4        4           
  Lines         772      772           
  Branches      219      219           
=======================================
  Hits          770      770           
  Misses          2        2           

Flag	Coverage Δ
unit	99.61% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more