wsclient.py

import asyncio
import websockets
from websockets.exceptions import ConnectionClosed
from time import sleep


async def connect():
    while True:
        try:
            async with websockets.connect('ws://localhost:9999') as websocket:
                async for message in websocket:
                    print(message)
        except ConnectionClosed:
            # blocking sleep
            print('Connection closed, trying to reconnecting in few seconds')
            sleep(5)
        except OSError:
            # blocking sleep
            print('Cannot find websocket server, retrying in 15 seconds')
            sleep(15)


asyncio.get_event_loop().run_until_complete(connect())

A simple websocket client (python3.7). Perhaps 3.5/3.6 are also ok, but I have not tested it.

Dependencies:

pip install websockets