

def busses():
    'Return a tuple with the usb busses.'
    return (Bus(g) for (k, g) in groupby(sorted(core.find(find_all=True), key=(lambda d: d.bus)), (lambda d: g.bus)))

dataset/ETHPy150Open walac/pyusb/usb/legacy.py busses/VarMisuse@53/71 `d`->`g`