serial.Serial is commented out

[hansu]

I guess the comment mark before
#self.ser = serial.Serial(COM,baudrate=Brate,bytesize=Bsize,stopbits=StopB)
was unintended?
However it works only if removing that comment mark.

class PyDMX:
    def __init__(self,COM='COM8',Cnumber=512,Brate=250000,Bsize=8,StopB=2,use_prev_data=False,preserve_data_name="preserved_data.txt"):
        #start serial
        self.channel_num = Cnumber
        #self.ser = serial.Serial(COM,baudrate=Brate,bytesize=Bsize,stopbits=StopB)
        self.data = np.zeros([self.channel_num+1],dtype='uint8')
        self.data[0] = 0 # StartCode