def __init__(self, bpm_limits = [50,160]):
        super(Cardiac,self).__init__()
        self.add("bpm", Float(iotype="out"))
        self.limits = [60./bpm_limits[0], bpm_limits[1]/60.]
dataset/ETHPy150Open thearn/webcam-pulse-detector/lib/signalProcess.py/Cardiac.__init__/swapped operands of `/`