[3.12] gh-109653: Reduce the import time of random by 60% (GH-110221)…

… (#110247) gh-109653: Fix regression in the import time of `random` in Python 3.12 (GH-110221) (cherry picked from commit 21a6263) Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
python · Oct 2, 2023 · 41e8e15 · 41e8e15
1 parent 892b194
commit 41e8e15
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/Lib/random.py b/Lib/random.py
@@ -65,7 +65,7 @@
 
 try:
     # hashlib is pretty heavy to load, try lean internal module first
-    from _sha512 import sha512 as _sha512
+    from _sha2 import sha512 as _sha512
 except ImportError:
     # fallback to official implementation
     from hashlib import sha512 as _sha512

diff --git a/Misc/NEWS.d/next/Library/2023-10-02-15-40-10.gh-issue-109653.iB0peK.rst b/Misc/NEWS.d/next/Library/2023-10-02-15-40-10.gh-issue-109653.iB0peK.rst
@@ -0,0 +1,2 @@
+Fix a Python 3.12 regression in the import time of :mod:`random`. Patch by Alex
+Waygood.