client timeout error on emit

I am receiving a timeout error when attempting to emit an event to a nodejs socket.io server namespace. There are no issues when the client connects to the server and the namespace, but for some reason the server does not detect emitted events from the python client (there is no issue when this is done from nodejs socket.io-client). The package versions are: python-socketio 4.6.0, python-engineio 3.14.2, socket.io (nodejs) 2.3.0.

import socketio

class Resource(ApiClient):
    def __init__(self):
        self.sio_client = socketio.Client()
        self.sio_client.connect(self.base_url, headers={
            'Authorization': 'Bearer {}'.format(self.api_key)
         }, namespaces=['/resource/']) # no issues connecting to server

    def upload(self, data: list):
        self.sio_client.emit(event='upload', data=data, namespace='/resource/') # gives timeout error after 60 seconds. 

Thanks

[miguelgrinberg]

The connection is asynchronous. The connect() call initiates it, but the connection isn’t finalized until your connect event handler fires up. This is an area that I hope I’ll be able to improve in a future release, as this generates some confusion, but this is how the connection works at this time.

[deepthought-dev]

I see, though I cannot understand how this can technically happen as in the code the client connects to the server in init before emitting the event in the upload function, unless for some reason there isn’t enough time to connect and it tries to emit before it has finished connecting. Anyways, I found a solution to the problem by adding a time.sleep(1) between the client connecting to the server and emitting the event, the server now receives the event without issues. Thanks again.