On: Do you know how much your computer can do in a sec...

[dalke]

Why wonder when you can test?

    % python -mtimeit '[x for x in xrange(1000)]'
    10000 loops, best of 3: 70.2 usec per loop
    % python -mtimeit 'for x in xrange(1000): pass'
    10000 loops, best of 3: 29 usec per loop

    % python -mtimeit '[x for x in xrange(100000)]'
    100 loops, best of 3: 7.03 msec per loop
    % python -mtimeit 'for x in xrange(100000): pass'
    100 loops, best of 3: 2.5 msec per loop