On Tue, 19 Jan 2016 09:24 pm, Oscar Benjamin wrote: > On 19 Jan 2016 10:16, "Steven D'Aprano" <st...@pearwood.info> wrote: >> >> [steve@ando ~]$ python -m timeit -s "from collections import deque" >> -s "it = iter([i for i in xrange(1000)])" "deque(it, maxlen=0)" >> 1000000 loops, best of 3: 0.913 usec per loop >> >> >> [steve@ando ~]$ python -m timeit -s "from collections import deque" >> -s "it = (i for i in xrange(1000))" "deque(it, maxlen=0)" >> 1000000 loops, best of 3: 0.965 usec per loop > > Surely the iterator in the above benchmarks is consumed during the first > of 1000000 loops. Subsequent loops are just calling next on an exhausted > iterator.
You know, I think you're right. Damn. I keep getting bitten by that aspects of iterators and timeit. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
