time.strptime's caching of its locale object was being recreated when the
locale changed but not used during the function call it was recreated during.
The test in this checkin is untested (OS X does not have the proper locale
support for me to test), although the fix for the bug this deals with
was tested by the OP (#1290505). Once the buildbots verify the test at least
doesn't fail it becomes a backport candidate.
diff --git a/Misc/NEWS b/Misc/NEWS
index 408de56..9da3d3b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -200,6 +200,9 @@
Library
-------
+- Bug #1290505: time.strptime's internal cache of locale information is now
+ properly recreated when the locale is changed.
+
- Patch #1685563: remove (don't add) duplicate paths in distutils.MSVCCompiler.
- Added a timeout parameter to the constructor of other protocols