[Python-checkins] r61213 - python/trunk/Lib/_abcoll.py
raymond.hettinger
python-checkins at python.org
Mon Mar 3 23:04:55 CET 2008
Author: raymond.hettinger
Date: Mon Mar 3 23:04:55 2008
New Revision: 61213
Modified:
python/trunk/Lib/_abcoll.py
Log:
Remove dependency on itertools -- a simple genexp suffices.
Modified: python/trunk/Lib/_abcoll.py
==============================================================================
--- python/trunk/Lib/_abcoll.py (original)
+++ python/trunk/Lib/_abcoll.py Mon Mar 3 23:04:55 2008
@@ -9,7 +9,6 @@
"""
from abc import ABCMeta, abstractmethod
-import itertools
__all__ = ["Hashable", "Iterable", "Iterator",
"Sized", "Container", "Callable",
@@ -189,7 +188,8 @@
def __or__(self, other):
if not isinstance(other, Iterable):
return NotImplemented
- return self._from_iterable(itertools.chain(self, other))
+ chain = (e for s in (self, other) for e in s)
+ return self._from_iterable(chain)
def __sub__(self, other):
if not isinstance(other, Set):
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