Is there a zip-like function that pads to longest length in Python?

Question

Is there a built-in function that works like zip() but that will pad the results so that the length of the resultant list is the length of the longest input rather

Answer 1

For Python 2.6x use itertools module's izip_longest.

For Python 3 use zip_longest instead (no leading i).

>>> list(itertools.izip_longest(a, b, c))
[('a1', 'b1', 'c1'), (None, 'b2', 'c2'), (None, 'b3', None)]