human
Solve the following python programming problem given the following code:
def initSocket(self) : 
    ' Make the connection to Python.
        ' 
    if self.nodejs : 
        try : 
            WebSocket = window.require ('ws') 
except Exception : 
            raise "FAIL: you need to 'npm install -g ws' (or 'websocket')." 
else : 
        WebSocket = window.WebSocket 
        if (WebSocket is undefined) : 
            window.document.body.innerHTML = 'Browser does not support WebSockets' 
            raise 'FAIL: need websocket' 
self.ws = ws = WebSocket (window.flexx.ws_url) 
    ws.binaryType = 'arraybuffer' 
    def on_ws_open(evt) : 
        window.console.info ('Socket connected') 
        ws.send (('hiflexx ' + window.flexx_session_id)) 
def on_ws_message(evt) : 
        window.flexx.last_msg = (evt.data or evt) 
        msg = window.flexx.decodeUtf8 (window.flexx.last_msg) 
        window.flexx.command (msg) 
def on_ws_close(evt) : 
        self.ws = None 
        msg = 'Lost connection with server' 
        if (evt and evt.reason) : 
            msg += (': %s (%i)' % (evt.reason, evt.code)) 
if ((not window.flexx.is_notebook) and (not self.nodejs)) : 
            window.document.body.innerHTML = msg 
else : 
            window.console.info (msg) 
def on_ws_error(self, evt) : 
        self.ws = None 
        window.console.error ('Socket error') 
if self.nodejs : 
        ws.on ('open', on_ws_open) 
        ws.on ('message', on_ws_message) 
        ws.on ('close', on_ws_close) 
        ws.on ('error', WebSocket) 
else : 
        ws.onopen = on_ws_open 
        ws.onmessage = on_ws_message 
        ws.onclose = on_ws_close 
        ws.onerror = on_ws_error 

    
    

    Fix the buggy line: ws.on ('error', WebSocket)
assistant
#Here is Python code to fix the buggy line: ws.

ws.on ('error', on_ws_error)