What is a tuple useful for?

Question

I am learning Python for a class now, and we just covered tuples as one of the data types. I read the Wikipedia page on it, but, I could not figure out where such a data type wo

Answer 1

A list can always replace a tuple, with respect to functionality (except, apparently, as keys in a dict). However, a tuple can make things go faster. The same is true for, for example, immutable strings in Java -- when will you ever need to be unable to alter your strings? Never!

I just read a decent discussion on limiting what you can do in order to make better programs; Why Why Functional Programming Matters Matters