https://github.com/python/cpython/commit/75d453b0ab852b1cc295ea602b3df413ef0ce569
commit: 75d453b0ab852b1cc295ea602b3df413ef0ce569
branch: 3.13
author: Miss Islington (bot) <31488909+miss-isling...@users.noreply.github.com>
committer: corona10 <donghee.n...@gmail.com>
date: 2025-04-03T01:24:43+09:00
summary:
[3.13] gh-131544: Update docs for PyType_AddWatcher (gh-132015) (gh-132019)
gh-131544: Update docs for PyType_AddWatcher (gh-132015)
(cherry picked from commit 25275bda790e8a689092e83855d6d0574f26061b)
Co-authored-by: Donghee Na <donghee...@python.org>
files:
M Doc/c-api/type.rst
diff --git a/Doc/c-api/type.rst b/Doc/c-api/type.rst
index 4ba3f7ac2fafa4..be87b689fa1c22 100644
--- a/Doc/c-api/type.rst
+++ b/Doc/c-api/type.rst
@@ -82,6 +82,9 @@ Type Objects
error (e.g. no more watcher IDs available), return ``-1`` and set an
exception.
+ In free-threaded builds, :c:func:`PyType_AddWatcher` is not thread-safe,
+ so it must be called at start up (before spawning the first thread).
+
.. versionadded:: 3.12
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