tuple.index()

[Nick Maclaren]

In article <mailman.1588.1166096890.32031.python-list at python.org>,
Fredrik Lundh <fredrik at pythonware.com> writes:
|> 
|> > Why doesn't the tuple type have an index method?  It seems such a
|> > bizarre restriction that there must be some reason for it.
|> 
|> hah!  not being able to remove or add things to tuples is an even 
|> bizarrer restriction!

Eh?  Why?

My understanding of the difference between a tuple and a list is
PRECISELY that the former is immutable and the latter mutable.
But an index method makes precisely as much sense on an immutable
sequence as it does on a mutable one.


Regards,
Nick Maclaren.