Suggestion: str.itersplit()

[Dustan]

>From my searches here, there is no equivalent to java's
StringTokenizer in python, which seems like a real shame to me.

However, str.split() works just as well, except for the fact that it
creates it all at one go. I suggest an itersplit be introduced for
lazy evaluation, if you don't want to take up recourses, and it could
be used just like java's StringTokenizer.

Comments?