Is there a generator version of `string.split()` in Python?

It is highly probable that

re.finditer

def split_iter(string):    return (x.group(0) for x in re.finditer(r"[A-Za-z']+", string))

Demo:

>>> list( split_iter("A programmer's RegEx test.") )['A', "programmer's", 'RegEx', 'test']

edit: I have just confirmed that this takes constant memory in python
3.2.1, assuming my testing methodology was correct. I created a string of very
large size (1GB or so), then iterated through the iterable with a

for