[Tutor] A simple Perl to Python regex xlation question
Kent Johnson
kent37 at tds.net
Wed Apr 20 21:07:28 CEST 2005
Smith, Jeff wrote:
> What's the quickest (and most Pythonic) way to do the following Perlism:
> $str = s/d+/d/;
>
> (i.e. collapsing multiple occurrences of the letter 'd' to just one)
import re
s = re.sub('d+', 'd', s, 1)
if I understand the perl...this replaces just one occurance of d+. If you want to replace all
occurances then use
s = re.sub('d+', 'd', s)
>>> import re
>>> s = 'dddaddddabcdeddd'
>>> re.sub('d+', 'd', s, 1)
'daddddabcdeddd'
>>> re.sub('d+', 'd', s)
'dadabcded'
Kent
More information about the Tutor
mailing list