gh-92810: Reduce memory usage by ABCMeta.subclasscheck #131914

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dolfinus wants to merge 19 commits into python:main from dolfinus:improvement/ABCMeta_subclasscheck

+269 −63

gh-92810: Remove WeakKeyDictionary from _py_abc

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dolfinus committed Jun 13, 2025

commit 7afa5ea58c5fb19724308dc97d9cf693f6426a8a

Lib/_py_abc.py

-Original file line number
+Diff line change
@@ -1,5 +1,4 @@
     from _weakrefset import WeakSet
-    from weakref import WeakKeyDictionary
     def get_cache_token():
@@ Expand Down @@