diff options
author | Tim Peters <tim.peters@gmail.com> | 2002-08-26 00:44:07 +0000 |
---|---|---|
committer | Tim Peters <tim.peters@gmail.com> | 2002-08-26 00:44:07 +0000 |
commit | 29382cfc5fb4eea69c36064c936b2596bf04c59e (patch) | |
tree | 1215b07389f51d9be2e216df3f3d7d1a0ebeaa7f | |
parent | 3198c2abefb83d40d64bf873f55b782074e7a042 (diff) | |
download | cpython-29382cfc5fb4eea69c36064c936b2596bf04c59e.tar.gz |
Gave intersection_update a speed boost.
-rw-r--r-- | Lib/sets.py | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/Lib/sets.py b/Lib/sets.py index e33464b58e..5007709979 100644 --- a/Lib/sets.py +++ b/Lib/sets.py @@ -380,9 +380,7 @@ class Set(BaseSet): def __iand__(self, other): """Update a set with the intersection of itself and another.""" self._binary_sanity_check(other) - for elt in self._data.keys(): - if elt not in other: - del self._data[elt] + self._data = (self & other)._data return self def intersection_update(self, other): |