> I'm a little confused. Why doesn't s evaluate to True in the first part,
> but it does in the second? Is the first statement something different?
>
> >>> s = 'hello'
> >>> s == True
> False
> >>> if s:
> print 'hi'
The "if s" does an implicit (yeah, I know, "explicit is better
than implicit") conversion to bool, like
if bool(s):
And as such, you'll find that
bool(s) == True
You can learn more at
http://docs.python.org/lib/truth.html
where you'll see that it's not really exactly a bool() call, but
that strings are a special case listed here. And if not, they
also have a __len__ method which would return zero/non-zero in
the even that strings weren't handled, making the "actual" test
(if strings weren't special-cased)
(s.__len__() <> 0) == True
-tkc
--
http://mail.python.org/mailman/listinfo/python-list
