Issue #28649: typing-clear-caches.patch
diff --git a/Lib/typing.py b/Lib/typing.py
index e748fd9..f3e446e 100644
--- 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: