Faster and simpler _replace() method
diff --git a/Lib/collections.py b/Lib/collections.py
index c3173db..be4d4fd 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -71,7 +71,7 @@
return dict(zip(%(field_names)r, self)) \n
def _replace(self, **kwds):
'Return a new %(typename)s object replacing specified fields with new values'
- return %(typename)s(**dict(zip(%(field_names)r, self), **kwds)) \n\n''' % locals()
+ return %(typename)s(*map(kwds.get, %(field_names)r, self)) \n\n''' % locals()
for i, name in enumerate(field_names):
template += ' %s = property(itemgetter(%d))\n' % (name, i)
if verbose: