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[BUG] Unhelpful error message if a an empty structure declaration is used in place of a forward structure declaration

Status: Open.

#7003 In cython/cython;

· shakfu opened on Jul 5, 2025

[ENH] performance of <code>bytes</code> and <code>memoryview</code>

Status: Open.

#6997 In cython/cython;

· dg-pb opened on Jun 30, 2025

[ENH] fused_type performance

Status: Open.

#6996 In cython/cython;

· dg-pb opened on Jun 30, 2025

[BUG] error: unknown type name ‘__Pyx_Locks_PyMutex’

Status: Open.

#6995 In cython/cython;

· stephane-martin opened on Jun 29, 2025

Mutex type as attribute of a <code>public</code> extension type generates undefined macro

Code Generation

defect

Status: Open.

#6992 In cython/cython;

· scoder opened on Jun 26, 2025

Disambiguate CYTHON_USE_TYPE_SLOTS

PyPy

Status: Open.

#6990 In cython/cython;

· da-woods opened on Jun 24, 2025

<code>escape_byte_string</code> possibly wrong?

Status: Open.

#6982 In cython/cython;

· da-woods opened on Jun 23, 2025

[BUG] Regression 3.0.12 -&gt; 3.1.0+ generated source contains duplicate definitions

Status: Open.

#6981 In cython/cython;

· bjodah opened on Jun 21, 2025

[ENH] Better integrate/document Python capsule API

Status: Open.

#6972 In cython/cython;

· matusvalo opened on Jun 17, 2025

[BUG] Deleting bytearray elements works without the GIL

Status: Open.

#6954 In cython/cython;

· da-woods opened on Jun 8, 2025

[ENH] Allow -&gt; None in cpdef &amp; cdef signature

enhancement

Pure Python Mode

Python SemanticsGeneral Python (3) language semanticsGeneral Python (3) language semantics

Status: Open.

#6946 In cython/cython;

· jpe opened on Jun 6, 2025

[BUG] Argument annotations are ignored in .pxd files

Status: Open.

#6945 In cython/cython;

· jpe opened on Jun 6, 2025