Add groupsof built-in

Something like

def groupsof(n, iterable):
    """Split iterable into groups (tuples) of length n.
    If the length of iterable is not divisible by n, the last group may be of size < n."""
    iterator = iter(iterable)
    while True:
        group = [next(iterator)]
        for _ in range(1, n):
            try:
                group.append(next(iterator))
            except StopIteration:
                break
        yield tuple(group)
        if len(group) != n:
            break

[kbaskett248]

Yes, I am.

[evhub]

@kbaskett248 Raising an exception seems like a good idea, go for it! Also, just to check, you’re putting this in header.py_template, correct?