Invalid Session

piyushk921

I am running my script for my friend and in between i got this error "ERROR:websocket:error from callback >: Invalid session".

May I know the reason behind it and how to rectify this ?

sujith

Hi,
Can you paste your code?
We will check and get back to you.

piyushk921

def on_tick(tick, ws):
                #print tick
                #sys.exit(0)
                with open("C:\\Python27\\COMMAND.txt",'r') as file:
                        buff = file.read()
                        if "stop" in buff:
                                flag = 1
                        else:
                                flag = 0
                        file.close()
                for item in tick:
                        LTP = item['last_price']
                        ATP = item['average_price']
                        INSTRUMENT = item['instrument_token']
                        LOT_SIZE = int(20000/LTP)
                        TIME_RAW = str(datetime.datetime.now())
                        TIME_PART = int(TIME_RAW.split(" ")[1][0:8].replace(':',''))
                        symbol_name = SYMBOL_MAP[INSTRUMENT]
                        kite.order_place(tradingsymbol=symbol_name,exchange="NSE",transaction_type="SELL",quantity=LOT_SIZE,order_type="MARKET",product="MIS")

sujith

Hi @piyushk921,
This is error message is from order_place method, it will be called when a session is expired.
This can happen when a user logged into to any of our platforms like PI or NEST. I would suggest using Kite for monitoring purpose and if you log out of any platform then you are logged out everywhere.