cython-3.2.4 (Python module)

[Bruce Dubbs]

New point version.

[Bruce Dubbs]

3.2.4 (2026-01-04)

Features added

• In preparation of Cython 3.3, a new decorator @collection_type(tname) can be used to advertise an extension type as being a 'sequence' or 'mapping'. This currently only has the effect of setting the Py_TPFLAGS_SEQUENCE flag on the type or not, but is provided for convenience to allow using the new decorator already in Cython 3.2 code.

• Several C++ exception declarations were added to libcpp.exceptions.

Bugs fixed

• Pseudo-literal default values of function arguments like arg=str() could generate invalid C code when internally converted into a real literal.

• The pickle serialisation of extension types using the auto_pickle feature was larger than necessary since 3.2.0 for types without Python object attributes. It is now back to the state before 3.2.0 again.

• Constants are now only made immortal on freethreading Python if they are not shared.

• PyDict_SetDefaultRef() is now used when available to avoid temporary borrowed references.

• Includes all fixes as of Cython 3.1.8.

[Bruce Dubbs]

Fixed at commits

e44021d53c Update to IO-Socket-SSL-2.096 (Perl Module).
b6c3fa9c08 Update to cython-3.2.4 (Python module).

[Bruce Dubbs]

Milestone renamed