On Wed, Jun 18, 2008 at 8:30 PM, Keith Troell <[EMAIL PROTECTED]> wrote: > Let's say I have a list of lists l == [[1, 2, 3], [2, 3, 1], [3, 2, 1], [1, > 3, 2]] > > If I do a l.sort(), it sorts on the first element of each listed list: > >>>> l.sort() >>>> l > [[1, 2, 3], [1, 3, 2], [2, 3, 1], [3, 2, 1]] > > > How can I sort on the second or third elements of the listed lists?
Use the key= parameter of sort to specify the sort key. operator.itemgetter is convenient for the actual key: In [3]: from operator import itemgetter In [4]: l.sort(key=itemgetter(1)) In [5]: l Out[5]: [[1, 2, 3], [3, 2, 1], [2, 3, 1], [1, 3, 2]] A longer explanation is here: http://personalpages.tds.net/~kent37/kk/00007.html Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
