From Itertools Recipes [6]: def grouper(iterable, n, fillvalue=None): "Collect data into fixed-length chunks or blocks" # grouper('ABCDEFG', 3, '

From Itertools Recipes [6]: def grouper(iterable, n, fillvalue=None): "Collect data into fixed-length chunks or blocks" # grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx" args = [iter(iterable)] * n return zip_longest(*args, fillvalue=fillvalue) - What is the most “pythonic” way to iterate over a list in chunks? [1] - Idiomatic way to take groups of n items from a list in Python? [2] - Python “Every Other Element” Idiom [3] - Iterate an iterator by chunks (of n) in Python? [4] - How do you split a list into evenly sized chunks in Python? [5] [1]: http://stackoverflow.com/questions/434287/what-is-the-most-pythonic-way-to-iterate-over-a-list-in-chunks http://stackoverflow.com/questions/434287/what-is-the-most-p... [2]: http://stackoverflow.com/questions/2461484/idiomatic-way-to-take-groups-of-n-items-from-a-list-in-python http://stackoverflow.com/questions/2461484/idiomatic-way-to-... [3]: http://stackoverflow.com/questions/2631189/python-every-other-element-idiom http://stackoverflow.com/questions/2631189/python-every-othe... [4]: http://stackoverflow.com/questions/8991506/iterate-an-iterator-by-chunks-of-n-in-python http://stackoverflow.com/questions/8991506/iterate-an-iterat... [5]: http://stackoverflow.com/questions/312443/how-do-you-split-a-list-into-evenly-sized-chunks-in-python http://stackoverflow.com/questions/312443/how-do-you-split-a... [6]: http://docs.python.org/3/library/itertools.html#itertools-recipes http://docs.python.org/3/library/itertools.html#itertools-re...