>-----Original Message----- >From: Tutor [mailto:tutor-bounces+crk=godblessthe...@python.org] On >Behalf Of Peter Otten >Sent: Sunday, November 09, 2014 5:47 PM >To: tutor@python.org >Subject: Re: [Tutor] don't understand iteration > >Clayton Kirkwood wrote: > >> I have the following code: > >> blah = >> re.search(r'<\w\w>(\w{3}\.)\s+(\d{2}),\s+(\d{2}).+([AP]M)\s+(E[SD]T)', >> line) > >> (month, day, time, ap, offset) = blah.group(1,2,3,4,5) This >> works fine, but in the (month... line, I have blah.group(1,2,3,4,5), >> but this is problematic for me. I shouldn't have to use that 1,2,3,4,5 >> sequence. I tried to use many alternatives using: range(5) which >> doesn't work, list(range(5)) which actually lists the numbers in a >> list, and several others. As I read it, the search puts out a tuple. I >> was hoping to just assign the re.search to month, day, time, ap, >> offset directly. Why wouldn't that work? Why won't a range(5) work? I >> couldn't find a way to get the len of blah. > >> What am I missing? > ><https://docs.python.org/dev/library/re.html#re.match.groups> > >While the direct answer would be > >month, day, time, ap, offset = blah.group(*range(1,6)) > >there is also the groups() method > >month, day, time, ap, offset = blah.groups() > >which is appropriate when you want to unpack all capturing groups. >
Still seems odd to me. Blah is a tuple, and would think that there should be a natural way to pull it apart. One can iterate across a string or list easily, why not a tuple. I also would have thought that a range(5) would have worked. Isn't it an iterable? Thanks for the insight... Clayton > > >_______________________________________________ >Tutor maillist - Tutor@python.org >To unsubscribe or change subscription options: >https://mail.python.org/mailman/listinfo/tutor _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
