Fredrik Lundh wrote: >> I found this strange: >> >> python -mtimeit "sum(int(L) for L in xrange(3000))" >> 100 loops, best of 3: 5.04 msec per loop >> >> python -mtimeit "import itertools; sum(itertools.imap(int, >> xrange(3000)))" 100 loops, best of 3: 3.6 msec per loop >> >> I thought the two constructs could achieve the same speed. > > hint: how many times to the interpreter have to look up the names > "int" > and "L" in the two examples ?
Ah right, thanks! -- Giovanni Bajo -- http://mail.python.org/mailman/listinfo/python-list
