def assignEmptyAttrs(dicts):
    knobs = {}
    for (k, v) in dicts.items():
        if (len(v) == 0):
            knobs.setdefault(k, ['empty'])
        else:
            knobs.setdefault(k, v)
    return knobs
def assignEmptyAttrs(dicts):
    knobs = {}
    for (k, v) in dicts.items():
        if (len(v) == 0):
            knobs.setdefault(k, ['empty'])
        else:
            knobs.setdefault(k, v)
    return knobs