Description

encukou

opened on Mar 13, 2026

Issue body actions

Feature or enhancement

See discussion: https://discuss.python.org/t/soft-deprecating-ctypes-util-find-library/106232

Linked PRs

• gh-145916: Soft-deprecate ctypes.util.find_library #145919

Reacted by mara004

Activity

1. encukou

   added

   type-featureA feature request or enhancementA feature request or enhancement

   topic-ctypes

   on Mar 13, 2026
2. encukou

   added this to Ctypes issueson Mar 13, 2026
3. picnixz

   added

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

   on Mar 13, 2026
4. encukou

   added 2 commits that reference this issue on Mar 13, 2026

   pythongh-145916: Deprecate ctypes.util.find_library

   3f36796

   gh-145916: Soft-deprecate ctypes.util.find_library (GH-145919)

   b38127f
5. encukou

   closed this as completedon Mar 20, 2026
6. github-project-automation

   moved this to Done in Ctypes issueson Mar 20, 2026
7. encukou commented on Mar 20, 2026

   

   encukou

   on Mar 20, 2026

   MemberAuthor

   More actions

   Soft-deprecated. I've also closed related issues:

   • ctypes.util.find_library() should return full pathname instead of filename in linux #65241
   • ctypes.util.find_library does not respect os.add_dll_directory #111104
   • ctypes.util.find_library makes assumptions around /sbin/ldconfig and is inconsistent in its contract #112417
   • ctypes.util.find_library() does not find macOS 11+ system libraries when built on older macOS systems #88855
   • ctypes.util.find_library raises FileNotFoundError for libsecp256k1 #93094
   • ctypes.util incorrectly fails for libraries without DT_SONAME #65821
   • CDLL does not use same paths as util.find_library #62702
   • find_library("c") defers to find_msvcrt() #72469
   • find_library broken for binutils >= 2.32 / 2.34 #84916
   • Support more platforms in ctypes.find_library #142020

   These are also listed in Ctypes issues (view)

   Reacted by mara004
8. CuriousLearner

   added a commit that references this issue on Mar 22, 2026

   Merge remote-tracking branch 'upstream/main' into fix-pythongh-138577

   2691ad9
9. ljfp

   added a commit that references this issue on Apr 25, 2026

   pythongh-145916: Soft-deprecate ctypes.util.find_library (pythonGH-14…

   f134abd

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