variable args + named options

[Skaperen]

def foo(*varargs,bar=256):
    ...
    ...
    return bar

this is OK in Python3 but not in Python2. apparently, Python2 requires something else, like:

def foo(*varargs,**options):
    ...
    bar=256
    if 'bar' in options:
        bar=options['bar']
    ...
    return bar

how did i miss that?