Re: Comprehensions

Some generator/iterator questions (warning, late night questions)...

1) Should functions like split be returning iterators instead of lists?
What if you run split on a 100 megabyte file?  Can you run split on a file
instead of a string in memory?

2) Should we visit every function that returns a list and change it to
return an iterator?

3) What is the difference between an iterator and a generator?  Does a
generator generate values or does it generate iterator objects?  Enquiring
minds want to know.