On Wed, Jan 18, 2012 at 7:31 AM, Rodrick Brown <rodrick.br...@gmail.com> wrote: > On Wed, Jan 18, 2012 at 10:27 AM, Alec Taylor <alec.tayl...@gmail.com> > wrote: >> >> http://docs.python.org/library/functions.html >> >>> x = [1, 2, 3] >> >>> y = [4, 5, 6] >> >>> zipped = zip(x, y) >> >>> zipped >> [(1, 4), (2, 5), (3, 6)] >> >>> x2, y2 = zip(*zipped) >> >>> x == list(x2) and y == list(y2) >> True > > > Alec can you explain this behavior zip(*zipped)?
It's just the application of the http://docs.python.org/tutorial/controlflow.html#unpacking-argument-lists feature to a zip() [http://docs.python.org/library/functions.html#zip ] call. zip(*zipped) === zip(*[(1, 4), (2, 5), (3, 6)]) === zip((1, 4), (2, 5), (3, 6)) === [(1, 2, 3), (4, 5, 6)] Cheers, Chris -- http://rebertia.com -- http://mail.python.org/mailman/listinfo/python-list