From: Alex Waygood <Alex.Waygood@Gmail.com>
Date: Wed, 5 Apr 2023 16:37:36 +0000 (+0100)
Subject: gh-74690: Further optimise `typing._ProtocolMeta.__instancecheck__` (#103280)
X-Git-Tag: v3.12.0b1~637
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=de182676853e8de22363e8a0641c42392c0fdaa9;p=thirdparty%2FPython%2Fcpython.git

gh-74690: Further optimise `typing._ProtocolMeta.__instancecheck__` (#103280)
---

diff --git a/Lib/typing.py b/Lib/typing.py
index b8420f619a1d..1f1c4ffa2566 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -2039,7 +2039,7 @@ class _ProtocolMeta(ABCMeta):
                     val = getattr_static(instance, attr)
                 except AttributeError:
                     break
-                if callable(getattr(cls, attr, None)) and val is None:
+                if val is None and callable(getattr(cls, attr, None)):
                     break
             else:
                 return True