skip@pobox.com wrote:
Nick> $ ./python -m timeit "'' % ()" Nick> 1000000 loops, best of 3: 0.389 usec per loop
vs.
Nick> $ ./python -m timeit "'%s' % 'nothing'" Nick> 10000000 loops, best of 3: 0.0736 usec per loop
I think you need to use a tuple for the second case to make it comparable to the first.
It doesn't actually make that big a difference - I'm guessing a Py_INCREF shortcut ends up getting used either way: $ ./python -m timeit "'%s' % 'nothing'" 10000000 loops, best of 3: 0.0848 usec per loop $ ./python -m timeit "'%s' % 'nothing'," 10000000 loops, best of 3: 0.133 usec per loop $ ./python -m timeit "'' % ()" 1000000 loops, best of 3: 0.513 usec per loop (times are a bit variable at this very moment since I have a few different apps open) Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia --------------------------------------------------------------- http://www.boredomandlaziness.org