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Avoid expensive try: except in cached_property

This commit is contained in:
Ask Solem 2016-07-07 18:42:30 -07:00
parent c47e828568
commit 7ccec0b536
1 changed files with 4 additions and 8 deletions
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12
kombu/utils/__init__.py
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@ -309,16 +309,12 @@ class cached_property(object):
value = self.__set(obj, value)
obj.__dict__[self.__name__] = value
def __delete__(self, obj):
def __delete__(self, obj, _sentinel=object()):
if obj is None:
return self
try:
value = obj.__dict__.pop(self.__name__)
except KeyError:
pass
else:
if self.__del is not None:
self.__del(obj, value)
value = obj.__dict__.pop(self.__name__, _sentinel)
if self.__del is not None and value is not _sentinel:
self.__del(obj, value)
def setter(self, fset):
return self.__class__(self.__get, fset, self.__del)