Thanks everyone, but not on my machine (Python 2.6.1, OS X 10.6) it's not:
In [1]: from itertools import count, islice In [2]: from collections import deque In [3]: i1=count() In [4]: def consume1(iterator, n): ...: deque(islice(iterator, n), maxlen=0) ...: ...: In [5]: i2=count() In [6]: def consume2(iterator, n): ...: for _ in islice(iterator, n): pass ...: ...: In [7]: timeit consume1(i1, 10) 1000000 loops, best of 3: 1.63 us per loop In [8]: timeit consume2(i2, 10) 1000000 loops, best of 3: 846 ns per loop Can somebody please test whether it is only my machine or is this reproducible? (Thanks Jan for making me actually carry the test) -- http://mail.python.org/mailman/listinfo/python-list
