Specific iterator in one line

[Paul Rubin]

Filip Gruszczyäski <gruszczy at gmail.com> writes:
> [1, 0, 0, 1] -> ['b', 'b', 'a', 'a', 'b', 'b']

Using itertools:

>>> list(chain(*imap([['a'],['b','b']].__getitem__, [1,0,0,1])))
['b', 'b', 'a', 'a', 'b', 'b']