On Wednesday, December 22, 2010 12:22:22 PM UTC-4, Francesco Napolitano wrote: > Hi all, > suppose I have: > > s='a=b, c=d' > > and I want to extract sub-strings a,b,c and d from s (and in general > from any longer list of such comma separated pairs). > Some failed attempts: > > In [12]: re.findall(r'(.+)=(.+)', s) > Out[12]: [('a=b, c', 'd')] > > In [13]: re.findall(r'(.+?)=(.+)', s) > Out[13]: [('a', 'b, c=d')] > > In [14]: re.findall(r'(.+)=(.+)*', s) > Out[14]: [('a=b, c', 'd')] > > In [15]: re.findall(r'(.+)=(.+),', s) > Out[15]: [('a', 'b')] > > In [16]: re.findall(r'(.+)=(.+),?', s) > Out[16]: [('a=b, c', 'd')] >
How about the following: >>> s = 'a=b,c=d' >>> t = [] >>> for u in s.split(','): ... t.extend(u.split('=')) ... >>> t ['a', 'b', 'c', 'd'] HTH, André > Thanks for your help, > francesco. -- http://mail.python.org/mailman/listinfo/python-list