Hello @Raghav Atal ,

I would suggest to confirm, that your Python version is new, modules websocket and websocket-client are recent if not the latest, and to verify the same with the latest example code available from Refinitiv GitHub Websocket examples repository.

You may wish to also test the connection to the same RTDS host with Try It Out example, please find the details in Quick Start - Connecting to Refinitiv Real-Time Distribution System.

I completely agree with @nick.zincone.1 If you continue experiencing the connectivity issue, would next reach out to your market data/network group in charge of RTDS (formerly TREP).

Hi @Raghav Atal

There are a couple of things I would suggest you do. It appears the example code 'market_price.py' may have implemented an old signature for some of the callbacks. For example, it is complaining about the number of arguments passed to the on_close(). Within the example, it only defines one positional argument - I would suggest you update the example so the on_close() looks like this:

def on_close(ws, close_status_code, close_msg):
    print("### closed ###")

Update the code to print out the status code and msg arguments that are being passed in. This should at least provide some clue as to why it is failing to connect to your local market data system and also eliminate the error message:

on_close() takes 1 positional argument but 3 were given

Assuming it will provide any more meaningful information, I would reach out to your market data team to understand why it is rejecting your request - providing to them this information. At first glance, it doesn't appear the code is the issue but rather the server.

Hi @Raghav Atal

I seem to recall that the error 'on_close() takes 1 positional argument but 3 were given ' occurs when the websocket library is installed - rather than websocket-client

Can you confirm you have done:

pip install websocket-client

Please the Websocket API QuickStart for further details

Hi @Raghav Atal

Can you confirm where you pulled that example (market_price.py) from? If it is not from here (https://github.com/Refinitiv/websocket-api/blob/master/Applications/Examples/python/market_price.py), can you try that version. Also, can you confirm the version of Python you are using? Confirm the WebSocket library? Also, can you try running the example without specifying any user name? I want to see how the example responds. Thanks.