[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Cython (source)	>=3.3.0 → >=3.3.1

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Release Notes

cython/cython (Cython)

v3.3.1

Compare Source

==================

Most of the bugs fixed in this release were regressions in 3.3.0.

Features added

• Declarations for the C99 bool type in <stdbool.h> were added.
  (Github issue :issue:8011)

• Fused function objects are slightly smaller in the Limited API.
  (Github issue :issue:7967)

• Cython warns when enabling subinterpreter support for modules that cannot
  currently support it for technical reasons.
  (Github issue :issue:8006)

• The shared module is now automatically declared as freethreading_compatible and sets
  subinterpretes_compatible as applicable (currently depending on memoryview usage).
  Both are overridable by users as usual.
  (Github issue :issue:8037)

Bugs fixed

• Constant folding of multiplied sequences could return incorrect results.
  Patch by orztrickster. (Github issue :issue:8021)

• Cython 3.3.0 incorrectly assumed that Python integer powers always return integers.
  Patch by Clay Dugo. (Github issue :issue:7989)

• The return value of optimised calls to dict.get(), dict.pop() and dict.setdefault()
  were inferred independent of their default values, leading to incorrect C code being generated.
  (Github issue :issue:7991)

• Some redeclarations of annotated variables were incorrectly rejected.
  They are now generally allowed and Cython only warns about obviously incorrect cases.
  (Github issue :issue:7920)

• Type inference now respects annotation_typing=False for local variable annotations.
  Patch by GruffElixir. (Github issue :issue:7994)

• Type inference depended on arbitrary set ordering when circular references are involved.
  As an effect, the Cython.Compiler.FlowControl module was translated to slightly
  non-deterministic C code.
  (Github issue :issue:8002)

• Assigning different slices of the same memoryview to different extension type attributes
  could generate incorrect refcounting code.
  (Github issue :issue:8016)

• Enabling vectorcall for a class with a base class that doesn't have it incorrectly called
  up to the non-existing base class vectorcall slot.
  (Github issue :issue:7936)

• Cascaded assignments to differently type-inferred variables could generate incorrect C code.
  (Github issue :issue:7937)

• Method calls on typed containers with unused results could generate incorrect C code.
  (Github issue :issue:7922)

• Using None-returning builtin methods as part of expressions could generate incorrect C code.
  (Github issue :issue:7946)

• The C code generated for exception groups could lack a C variable declaration.
  Patch by bwenstar. (Github issue :issue:8043)

• Exporting fused functions generated invalid C code in API header files.
  Patch by Ardi Loot. (Github issue :issue:7972)

• Non-trivially generated keyword arguments (e.g. **{dict}) could fail to compile.
  (Github issue :issue:7921)

• Builtin method calls on dicts from non-trivial expressions could fail to compile.
  (Github issue :issue:7931)

• Some builtin optimisations could fail to compile on non-trivial expressions.
  (Github issue :issue:7957)

• Typing a global variable with an unknown type could fail to compile.
  (Github issue :issue:7970)

• Declaring a C array of extension types crashed Cython after reporting the error.
  Patch by Vladimir Saraikin. (Github issue :issue:1993)

• Optimised string comparison to single-character text strings accidentally allowed bytes.
  (Github issue :issue:7924)

• Errors while testing object attributes in match statements were ignored.
  Patch by Vineet Kumar. (Github issue :issue:8029)

• A dangling pointer was fixed when assigning to attributes of extension types.
  (Github issue :issue:7907)

• Re-raising an exception from an awaited Python coroutine could leak a frame reference.
  Patch by bwenstar. (Github issue :issue:8042)

• Trying to reimport a module compiled with module state now raises an exception instead of
  returning the original module, which let CPython overwrite the module state and crash.
  Patch by Max Azatian. (Github issue :issue:8048)

• Throwing into a pending async generator's aclose() could crash.
  Patch by Arthur Villeneuve. (Github issue :issue:8027)

• A crash was resolved when mixing Cython modules compiled with different Limited API versions.
  (Github issue :issue:7914)

• A GCC LTO-related compile/link problem was resolved when comparing Python ints.
  (Github issue :issue:7908)

• isfinite() was used for Python float comparisons but not defined in NetBSD in C++ compile mode.
  (Github issue :issue:7915)

• The __Pyx_pretend_to_initialize() function could fail to compile in C code that doesn't even need it.
  (Github issue :issue:7941)

• Modules containing only the empty string as single bytes literal generated invalid C code.
  (Github issue :issue:7965)

• User cimports of C++ names could break the internally generated C++ conversion functions
  and lead to compile failures or incorrect C++ code.
  (Github issue :issue:7939)

• The C code generated for the shared module was not deterministic.
  Patch by Ralf Gommers. (Github issue :issue:7982)

• Special .pxd file names like __init__.pxd and version file suffixes were mishandled
  when stripping file paths.
  Patch by Ralf Gommers. (Github issue :issue:7984)

• Non-standard type initialisation in SageMath allowed repeated initialisation
  of Cython's internal types, overwriting the previous types and leaking memory.
  Patch by Chenxin Zhong. (Github issue :issue:7976)

• Single-phase module initialisation in freethreading Python didn't allow overriding the
  FT-compatibility flag from a C macro (as supported for multi-phase initialisation).
  (Github issue :issue:8036)

• A C compiler warning in MSVC was resolved.
  (Github issue :issue:7911)

• PyPy now uses type specs by default.
  Patch by Matti Picus. (Github issue :issue:7947)

• Some older PyPy C-API workarounds were disabled for newer versions.
  Patch by Matti Picus. (Github issue :issue:7974)

• GraalPython now uses the Limited API for Cython functions.
  Patch by Michael Šimáček. (Github issue :issue:7971)

• The C-API of the array module is supported in GraalPython.
  (Github issue :issue:7964)

• Older Android builds no longer use C complex (which they only partially implemented).
  (Github issue :issue:8026)

• Copying the Shadow.py module into user packages could fail due to internal re-imports.
  Patch by Vincent Fazio. (Github issue :issue:7999)

• Concurrently creating the Cython file cache directory could fail.
  Patch by Lawrence Mitchell. (Github issue :issue:7985)

• The Cython file cache key didn't take the compiler directives into account.
  Patch by Robert Dazi. (Github issue :issue:7532)

• The encoding line detection at the start of source files was too eager to search also non-comments.
  (Github issue :issue:7935)

• Enabling annotated HTML file generation together with the shared module could fail to compile.
  (Github issue :issue:7910)

Other changes

• Generating a shared utility module no longer embeds its destination directory
  in the generated C code, making the output reproducible across build directories.
  It is now recommended to pass the --module-name option to cython generate-shared
  to provide the fully qualified module name explicitly.
  This is a follow-up fix to the one in 3.3.0, for --generate-shared=/path/to/_{sharedname}.c.
  Patch by Ralf Gommers. (Github issue :issue:7723)

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Quality Gate passed

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0 New issues
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Measures
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0.0% Coverage on New Code
0.0% Duplication on New Code

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.38%. Comparing base (ade5c39) to head (6a1d570).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #186   +/-   ##
=======================================
  Coverage   92.38%   92.38%           
=======================================
  Files           1        1           
  Lines         105      105           
=======================================
  Hits           97       97           
  Misses          8        8           

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