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/gist:6183623

Created August 8, 2013 10:43
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  1. @invalid-email-address Anonymous created this gist Aug 8, 2013.
    10 changes: 10 additions & 0 deletions gistfile1.txt
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,10 @@
    In [1]: a = '12345678'

    In [2]: %timeit [a[max(i-3,0):i] for i in range(len(a), 0, -3)][::-1]
    100000 loops, best of 3: 2.19 us per loop

    In [3]: %timeit format(int(a), ',').split(',')
    100000 loops, best of 3: 2.04 us per loop

    In [4]: %timeit [a[max(0,i-2+(len(a)-1)%3):i+1+(len(a)-1)%3] for i in range(0, len(a), 3)]
    100000 loops, best of 3: 2.91 us per loop