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| author | Raymond Hettinger <python@rcn.com> | 2009-04-01 18:50:56 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2009-04-01 18:50:56 (GMT) |
| commit | 66c4a6b51cea40215e8f61e1abe2e3d89c4aeb1e (patch) | |
| tree | 9514206018d91419cad25cdfdc9f8f4084270935 /Lib/_abcoll.py | |
| parent | 449b7d95d46f0b2e8a1fd73642d391ac3a29518e (diff) | |
| download | cpython-66c4a6b51cea40215e8f61e1abe2e3d89c4aeb1e.zip cpython-66c4a6b51cea40215e8f61e1abe2e3d89c4aeb1e.tar.gz cpython-66c4a6b51cea40215e8f61e1abe2e3d89c4aeb1e.tar.bz2 | |
Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
Diffstat (limited to 'Lib/_abcoll.py')
| -rw-r--r-- | Lib/_abcoll.py | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py index 40cc23e..990ff00 100644 --- a/Lib/_abcoll.py +++ b/Lib/_abcoll.py @@ -286,10 +286,9 @@ class MutableSet(Set): self.add(value) return self - def __iand__(self, c): - for value in self: - if value not in c: - self.discard(value) + def __iand__(self, it): + for value in (self - it): + self.discard(value) return self def __ixor__(self, it): |