def _izip_longest(*args, **kwds):
    fillvalue = kwds.get('fillvalue')
    def sentinel(counter = ([fillvalue]*(len(args)-1)).pop):
        yield counter() # yields the fillvalue, or raises IndexError
    fillers = itertools.repeat(fillvalue)
    iters = [itertools.chain(it, sentinel(), fillers) for it in args]
    try:
        for tup in itertools.izip(*iters):
            yield tup
    except IndexError:
        pass
Suggest column names on table alias and dot
dataset/ETHPy150Open cloudkick/libcloud/libcloud/compute/drivers/linode.py/_izip_longest--crossover with--dataset/ETHPy150Open dbcli/pgcli/tests/test_smart_completion_public_schema_only.py/test_suggested_multiple_column_names_with_alias