Bump cython from 3.0.0 to 3.0.2 in /python/helpers

[dependabot]

Bumps cython from 3.0.0 to 3.0.2.

Changelog

Sourced from cython's changelog.

3.0.2 (2023-08-27)

Bugs fixed

• Using None as default value for arguments annotated as int could crash Cython. (Github issue :issue:5643)

• Default values of fused types that include complex could generate invalid C code with -DCYTHON_CCOMPLEX=0. (Github issue :issue:5644)

• Using C++ enum class types in extension type method signatures could generate invalid C code. (Github issue :issue:5637)

3.0.1 (2023-08-25)

Features added

• The error messages regarding exception declarations were improved in order to give better help about possible reasons and fixes. (Github issue :issue:5547)

Bugs fixed

• Memory view types in Python argument annotations no longer accept None. They now require an explicit Optional[] or a None default value in order to allow None to be passed. This was an oversight in the 3.0.0 release and is a BACKWARDS INCOMPATIBLE change. However, since it only applies to code using Python syntax, it probably only applies to newly written code that was written for Cython 3.0 and can easily be adapted. In most cases, we expect that this change will avoid bugs in user code rather than produce problems. (Github issue :issue:5612)

• nogil functions using parallel code could freeze when called with the GIL held. (Github issues :issue:5564, :issue:5573)

• Relative cimports could end up searching globally and find the same package installed elsewhere, potentially in another version. (Github issue :issue:5511)

• Attribute lookups on known standard library modules could accidentally search in the module namespace instead. (Github issue :issue:5536)

... (truncated)

Commits

• fc5b199 Prepare release of 3.0.2.
• e4c7043 Minor code cleanup.
• 96390ae Move an enum class macro before the types block which might need it (GH-5656)
• 0bdfb97 Fix typo in declaration (GH-5655)
• 351e13c Avoid useless runtime type checks when coercing a None default argument to a ...
• 584078a Avoid using an unescaped name in the code (however unlikely it is that someon...
• 61535cf Fix invalid C code with -DCYTHON_CCOMPLEX=0 when assigning a simple (integer)...
• 0870f6b Fix test in Py2.
• 310720f Convert a test to language_level=3.
• 7c3d175 Remove useless shebang in Cython/Build/Cythonize.py (GH-5647)
• Additional commits viewable in compare view

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[jeffwidman]

@dependabot rebase

[jeffwidman]

@dependabot rebase

[jeffwidman]

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