8000 gh-92810: Reduce memory usage by ABCMeta.__subclasscheck__ by dolfinus · Pull Request #131914 · python/cpython · GitHub
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gh-92810: Reduce memory usage by ABCMeta.__subclasscheck__ #131914

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

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675bec5
gh-92810: Avoid O(n^2) complexity in ABCMeta.__subclasscheck__
dolfinus Mar 30, 2025
701ecc9
gh-92810: Apply fixes
dolfinus Mar 31, 2025
041f109
gh-92810: Apply fixes
dolfinus Mar 31, 2025
9bc4385
gh-92810: Apply fixes
dolfinus Mar 31, 2025
3d80b1e
gh-92810: Apply fixes
dolfinus Mar 31, 2025
b7603e0
gh-92810: Return __subclasses__clause back
dolfinus Apr 21, 2025
dd0d18c
gh-92810: Revert _abc.c changes
dolfinus Apr 21, 2025
8d695fd
gh-92810: Fix linter errors
dolfinus Apr 21, 2025
a2650b6
gh-92810: Add recursive issubclass check to _abc.c
dolfinus Jun 13, 2025
7afa5ea
gh-92810: Remove WeakKeyDictionary from _py_abc
dolfinus Jun 13, 2025
57980d3
gh-92810: Add news entry
dolfinus Jun 13, 2025
bbaf38a
gh-92810: Fix news entry
dolfinus Jun 13, 2025
6fc994d
gh-92810: Fixes after review
dolfinus Jun 22, 2025
b3b5895
gh-92810: Fixes after review
dolfinus Jun 22, 2025
69c5038
gh-92810: Fixes after review
dolfinus Jun 23, 2025
dc1b6d5
gh-92810: Fixes after review
dolfinus Jun 23, 2025
cd097ab
gh-92810: Introduce FT wrappers for uint64_t atomics
dolfinus Jun 23, 2025
f3a21a7
gh-92810: Use FT atomic wrappers for ABC invalidation counter
dolfinus Jun 23, 2025
e24e815
gh-92810: Fix missing FT wrapper
dolfinus Jun 23, 2025
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gh-92810: Apply fixes 
Signed-off-by: Martynov Maxim <martinov_m_s_@mail.ru>
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@dolfinus
dolfinus committed Apr 21, 2025
commit 3d80b1e46d4eb1480abbc0bd363cd22cfe393b0c
1 change: 0 additions & 1 deletion Modules/_abc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -760,7 +760,6 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self,
PyErr_SetString(PyExc_TypeError, "issubclass() arg 1 must be a class");
return NULL;
}
PyTypeObject *cls = (PyTypeObject *)self;

PyObject *ok, *subclasses = NULL, *result = NULL;
_abcmodule_state *state = NULL;
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