Tuple index

[Steven Bethard]

Michael Hartl wrote:
> I actually find it strange that tuples don't have an index function,
> since finding the index doesn't involve any mutation.  Anyone know why
> Python doesn't allow a statement like t.index('foo')?

Tuples aren't really intended for this kind of use.  See:

http://www.python.org/doc/faq/general.html#why-are-there-separate-tuple-and-list-data-types

Tuples are supposed to be operated on as a group.  It's even been 
suggested occasionally on python-dev that in Python 3.0, tuples 
shouldn't support iteration at all...

STeVe