[Tutor] manipulating a string
metolone+gmane at gmail.com
Tue Jul 15 10:06:41 CEST 2008
"Bryan Fodness" <bryan.fodness at gmail.com> wrote in message
news:fbf64d2b0807141541o7f462e3x17cd6c7dd8b752b4 at mail.gmail.com...
> I have a string (column names) that I need to split.
> D_H = 'D 5 10 15 20 25 30 35 40 D Upper D Lower'
> I cannot do a simple list(D_H).split because the last two strings have a
> space between them (D Upper and D Lower are two, not four labels).
> Any suggestions?
How was the string built? Is it possible to delimit the columns with
something besides a space, since a space is a valid character in a column
name. Baring that, adding a little knowledge of the string is needed:
>>> import re
>>> D_H = 'D 5 10 15 20 25 30 35 40 D Upper D Lower'
>>> print re.split(r'\s(?![UL])',D_H) # split on spaces not followed by U or
['D', '5', '10', '15', '20', '25', '30', '35', '40', 'D Upper', 'D Lower']
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