diff options
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): |