On Fri, Oct 5, 2012 at 4:24 AM, Albert-Jan Roskam <fo...@yahoo.com> wrote:
>
> import timeit
> ver1 = timeit.timeit("""
> import math
> value = "1234"
> value = "%-*s" % (int(math.ceil(len(value)/8.0)*8), value)
> """)
> ver2 = timeit.timeit("""
> value = "1234"
> value = value.ljust( len(value) + (-len(value) % 8) )
> """)
Try to focus a timeit run on the code that would actually run in a
loop. Move global imports, constants, and class/function definitions
into one or more setup strings.
>>> from timeit import timeit
>>> setup = "from math import ceil; value = '1234'"
>>> ver1 = timeit('int(ceil(len(value)/8.0)*8)', setup=setup)
>>> ver2 = timeit('len(value) + (-len(value) % 8)', setup=setup)
>>> ver3 = timeit('-8 * (len(value) // -8)', setup=setup)
>>> ver3 / ver2, ver3 / ver1
(0.6623768153526971, 0.2884886334856229)
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