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Fix two issues in the weak set implementation.

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This commit is contained in:
Georg Brandl 2008-05-18 07:46:13 +00:00
parent e624d17409
commit bf93b0470a
1 changed files with 5 additions and 2 deletions
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7
Lib/_weakrefset.py
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@ -41,7 +41,10 @@ class WeakSet:
def pop(self): def pop(self):
while True: while True:
itemref = self.data.pop() try:
itemref = self.data.pop()
except KeyError:
raise KeyError('pop from empty WeakSet')
item = itemref() item = itemref()
if item is not None: if item is not None:
return item return item
@ -107,5 +110,5 @@ class WeakSet:
__ixor__ = symmetric_difference_update __ixor__ = symmetric_difference_update
def union(self, other): def union(self, other):
self._apply_mutate(other, self.data.union) return self._apply(other, self.data.union)
__or__ = union __or__ = union