Created
September 4, 2012 21:52
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Cartesian product of lists in Python.
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| def cartesian (lists): | |
| if lists == []: return [()] | |
| return [x + (y,) for x in cartesian(lists[:-1]) for y in lists[-1]] | |
| print cartesian([[1, 2, 3], [2, 4, 6], [3, 6, 9]]) |
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Can you do it iteratively without list comprehension?