String Splitter Brain Teaser
mrovner at propel.com
Mon Mar 28 06:21:27 CEST 2005
Jp Calderone wrote:
> On Sun, 27 Mar 2005 14:39:06 -0800, James Stroud <jstroud at mbi.ucla.edu> wrote:
>>gets split to
>>[['A'], ['T'], ['T', 'G'], ['A'], ['T'], ['A', 'G']]
>>I have written a very ugly function to do this (listed below for the curious),
>>but intuitively I think this should only take a couple of lines for one
>>skilled in regex and/or listcomp. Any takers?
> >>> import re
> >>> s = 'ATT/GATA/G'
> >>> re.findall('(./.|.)', s)
> ['A', 'T', 'T/G', 'A', 'T', 'A/G']
> If it is really important to have ['A'] instead of 'A', etc, looping over the result and noticing strings of length 3 vs length 1, then applying the appropriate transformation, should be simple enough.
>>> [x.split('/') for x in ['A', 'T', 'T/G', 'A', 'T', 'A/G']]
[['A'], ['T'], ['T', 'G'], ['A'], ['T'], ['A', 'G']]
More information about the Python-list