[Python-checkins] cpython (merge 3.6 -> default): Issue #28649: typing-clear-caches.patch (3.6->3.7)

[guido.van.rossum]

https://hg.python.org/cpython/rev/08f76f89d199
changeset:   105026:08f76f89d199
parent:      105023:fd47a9d791b9
parent:      105025:bd2ec9965f47
user:        Guido van Rossum <guido at python.org>
date:        Wed Nov 09 13:23:06 2016 -0800
summary:
  Issue #28649: typing-clear-caches.patch (3.6->3.7)

files:
  Lib/typing.py |  4 ++++
  1 files changed, 4 insertions(+), 0 deletions(-)


diff --git a/Lib/typing.py b/Lib/typing.py
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -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:

-- 
Repository URL: https://hg.python.org/cpython