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[BUG] Compiling with limited API changes lifetime of nested closures

#7516

· wence- opened

on Feb 10, 2026

[BUG] Python bool casts are inconsistent

Cython Language Feature

Error Reporting

#7513

· scoder opened

on Feb 9, 2026

·

[ENH] Generate PyErr_Format() for formatted exception raising

#7512

· scoder opened

on Feb 9, 2026

[BUG] Windows 3.9 carray_iteration occassionally failing due to disk-space

#7510

· da-woods opened

on Feb 8, 2026

[BUG] Optimised comparisons fail to detect that they need the GIL

#7500

· scoder opened

on Feb 5, 2026

·

[ENH] Use vectorcall for fused functions

Cython Language Feature

#7499

· scoder opened

on Feb 3, 2026

[BUG] Compiling using shared utility raises: <code>AttributeError: 'NoneType' object has no attribute 'is_pyobject'</code>

#7497

· matusvalo opened

on Feb 2, 2026

[ENH] Add a source-level way to indicate the minimum required Cython version

#7496

· ngoldbaum opened

on Feb 2, 2026

cython.inline() is slow

#7488

· scoder opened

on Jan 31, 2026

[BUG] Using <code>cython.pointer[...]</code> and <code>cython.const[...]</code> causes C compilation error when shared utility is used

Code Generation

Pure Python Mode

#7487

· matusvalo opened

on Jan 30, 2026

[BUG] language_level=3 infers float for '**' operator

#7486

· scoder opened

on Jan 29, 2026

Extension type construction/destruction is slow in the Stable ABI

#7482

· da-woods opened

on Jan 25, 2026