gh-118761: Always lazy import warnings in threading (#129428)

Author: hukkin

Lib/threading.py

@@ -3,7 +3,6 @@
 import os as _os
 import sys as _sys
 import _thread
-import warnings
 
 from time import monotonic as _time
 from _weakrefset import WeakSet
@@ -133,6 +132,7 @@ def RLock(*args, **kwargs):
 
     """
     if args or kwargs:
+        import warnings
         warnings.warn(
             'Passing arguments to RLock is deprecated and will be removed in 3.15',
             DeprecationWarning,

Misc/NEWS.d/next/Library/2025-01-29-11-14-20.gh-issue-118761.gMZwE1.rst

@@ -0,0 +1,2 @@
+Always lazy import ``warnings`` in :mod:`threading`. Patch by Taneli
+Hukkinen.