Python Split Function

split.py

def split(values, func):
    group = []
    previous = None
    for value in values:
        if previous and func(previous, value):
            yield group
            group = []
        group.append(value)
        previous = value
    if group:
        yield group

if __name__ == '__main__':
    # split a sequence of 100 sorted random numbers wherever the delta >= 10
    import random
    values = sorted(random.sample(range(1000), 100))
    print values
    for group in split(values, lambda a, b: (b - a) >= 10):
        print group