I am using the Autobahn library for websocket connection in Python to Node.js server. I have to change header and origin parameters of the connection but its giving me error that factory.setSessionParameters(url="wss://xyz.com",origin='54:53:ed:29:23:85',protocols=['ovrc-protocol'],useragent=None,headers={'name':'ravi'}) TypeError: setSessionParameters() got an unexpected keyword argument 'headers' I even tried to save the values in keywords and pass those keywords as arguments to the setSessionfatory method url= "wss://xyz.com:1443" headers = { 'Sec-WebSocket-Key':'uRovscZjNol/umbTt5uKmw==' } origin='50:50:ed:27:21:33' protocols=['wxyz-protocol'] useragent=None factory.setProtocolOptions(version=13,utf8validateIncoming=False) factory.setSessionParameters(url,origin,protocols,useragent,headers) But then it return with error saying method setSessionParameters accepts 5 argument, 6 arguments provided Clearly there are only 5 arguments. I was following this link for the method It has details for setSessionParameters and its an actual doc but its not working at all. If possible please suggest easier way to do websocket connection in Python where I can change websocket parameters like origin and sec-WebSocket-key value etc. Continue reading...