On Sun, Jan 25, 2009 at 5:13 AM, Vicent <vgi...@gmail.com> wrote:
> I think I hadn't get that "0" is always integer, but now I get it. If I want
> to make it boolean (bit-like), it should be referred as "bool(0)". [It is
> like that, isn't it????]
Yes, though bool(0) is actually creating a new bool object with the
same true/false value as the integer 0. It's not the same as a cast in
C that just looks at the same value in a new way. You can also do
things like
In [1]: bool("hello")
Out[1]: True
In [2]: bool("")
Out[2]: False
In [3]: bool([1,2,3])
Out[3]: True
In [4]: bool([])
Out[4]: False
In each case it is creating a new bool value.
Kent
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
