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<code>ctypes.CDLL</code> does no longer honor the <code>handle</code> argument starting Python 3.13.10+ &amp; 3.14.1+?

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.15new features, bugs and security fixesnew features, bugs and security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-ctypes

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#143304 In python/cpython;

· leofang opened on Dec 31, 2025

Heap buffer overflow in ctypes array assignment via <code>__class__</code> swap

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-ctypes

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#143005 In python/cpython;

· jackfromeast opened on Dec 20, 2025

ctypes.POINTER.set_type doesn't reset format

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-ctypes

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#142966 In python/cpython;

· youknowone opened on Dec 19, 2025

Support more platforms in <code>ctypes.find_library</code>

OS-unsupported

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-ctypes

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142020 In python/cpython;

· Samueru-sama opened on Nov 27, 2025

ctypes._CData.from_buffer does not inherit _b_base_

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-ctypes

Status: Open.

#135894 In python/cpython;

· Soveu opened on Jun 24, 2025

Importing ctypes results in extra open libffi file descriptor since 3.14

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-ctypes

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#135893 In python/cpython;

· DaanDeMeyer opened on Jun 24, 2025

ctypes._CData._b_base_ does not point to root ctypes object

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-ctypes

Status: Open.

#135669 In python/cpython;

· Soveu opened on Jun 18, 2025

Add support for defining variadic callbacks via ctypes

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-ctypes

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#135620 In python/cpython;

· rkbennett opened on Jun 17, 2025

Remove deprecated and undocumented function <code>ctypes.SetPointerType</code>

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-ctypes

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#133866 In python/cpython;

· picnixz opened on May 11, 2025

Avoid DeprecationWarning for <code>_pack_</code> without <code>_layout_</code> when there are not bit-fields?

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-ctypes

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#133800 In python/cpython;

· seberg opened on May 10, 2025

<code>_objects</code> attribute of ctypes data instances is sometimes not None or a dictionary

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-ctypes

Status: Open.

#132177 In python/cpython;

· brianschubert opened on Apr 6, 2025

Silent ctypes.struct layout change from native to Windows when bitfields are used

3.14bugs and security fixesbugs and security fixes

topic-ctypes

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#131747 In python/cpython;

· BCSharp opened on Mar 25, 2025