diff options
Diffstat (limited to 'Lib/sets.py')
| -rw-r--r-- | Lib/sets.py | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Lib/sets.py b/Lib/sets.py index 5a0167d..c167d96 100644 --- a/Lib/sets.py +++ b/Lib/sets.py @@ -436,9 +436,8 @@ class Set(BaseSet): """Remove all elements of another set from this set.""" self._binary_sanity_check(other) data = self._data - for elt in other: - if elt in data: - del data[elt] + for elt in ifilter(data.has_key, other): + del data[elt] return self def difference_update(self, other): |