changeset:   105024:d920bfa5a71a
branch:      3.5
parent:      105021:d790078797bd
user:        Guido van Rossum <guido@python.org>
date:        Wed Nov 09 13:23:04 2016 -0800
files:       Lib/typing.py
description:
Issue #28649: typing-clear-caches.patch


diff -r d790078797bd -r d920bfa5a71a Lib/typing.py
--- a/Lib/typing.py	Wed Nov 09 13:18:59 2016 -0800
+++ b/Lib/typing.py	Wed Nov 09 13:23:04 2016 -0800
@@ -611,12 +611,16 @@
                         ("many" if alen > elen else "few", repr(cls), alen, elen))
 
 
+_cleanups = []
+
+
 def _tp_cache(func):
     """ Caching for __getitem__ of generic types with a fallback to
     original function for non-hashable arguments.
     """
 
     cached = functools.lru_cache()(func)
+    _cleanups.append(cached.cache_clear)
     @functools.wraps(func)
     def inner(*args, **kwds):
         try: