Brad Miller <[EMAIL PROTECTED]> added the comment: Our use of range in the first few classes is exactly for iteration purposes, but I do not like students to have to have too many mysteries. So I always have liked to show that range(10) simply produces a sequence of integers. In Python 3.0 range returns a mysterious iteration object. No thanks. My proposal was to provide a more user friendly implementation of the str method for this new range object that would allow the user to see the sequence. I like Python because it is so easy to start up a shell and poke around and see what things are.
I have no problem, introducing list(range(10)) in week 3 when I start talking about lists, and I like list comprehensions of that purpose too. Again, what I do not like is that things that used to be very easy for students to get a conceptual handle on are now more difficult in 3.0. - range is one example the dict_keys and dict_values objects are another example. dict_keys et. al. are much easier to deal with since I've already covered lists and the list() function by the time I get there. BTW, I think we must have very different teaching styles as I would never introduce something as mysterious as list(_) on the first day of class. I'd be happy to continue our discussion of teaching philosophy but I doubt that this is the right forum. Brad __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue2610> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
