> >>> a, b = [], []
> >>> a.append(b)
> >>> b.append(a)
did you perhaps mean a.append('b'); b.append('a'); otherwise this seems pretty
advanced for a newbie
> >>> b in a
> True
> >>> a in a
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> RuntimeError: maximum recursion depth exceeded in cmp
> >>>
> >>> a is a[0]
> False
> >>> a == a[0]
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> RuntimeError: maximum recursion depth exceeded in cmp
>
> ----------
>
> I'm a little new to this language so my mental model on whats going on
> may need to be refined.
>
> I expect "a in a" to evaluate to "False". Since it does not it may be
> that while checking equality it uses "==" and not "is". If that is the
> reason then the question becomes why doesn't "a == a[0]" evaluate to
> "False"? As a side, and if that is the reason, is there a version of
> "in" that uses "is"? "a is in a" does not work.
>
> Thankx,
> Trivik
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
http://mail.python.org/mailman/listinfo/python-list
