where does 'index()' come from?

[erudite]

Hello,
Ok I've been looking in the documentation for like the last hour trying to
find out where 'index()' comes from. Meaning what is it? Is it a
__builtin__? Is it part of a module? Is it a class? I found it (somewhere?)
and now I can't find any documentation on it. BTW I'm running python 2.0
(windows 2000 OS).

example usage:
sys.argv[1].index('=')

any documentation you could point me to would be wonderful.

thanks,

~Eruditus~

"You can't talk to a psycho like a normal human being." -- Poe 'Trigger
Happy Jack'