server.py

#simple websockets brocaster
import asyncio
import websockets
clients = [] #to store all connected cleints

#handler for socket message activities
async def handler(websocket, path):
 #print(path) #path is not used currently
 if websocket not in clients:
  clients.append(websocket) #append new cleint to the array
  
 async for message in websocket:
  print(message,'received from client') #print to console
  await brocast(message) #send message to all clents

async def brocast(msg):
 print(msg,' brocasting') #print to console

 #iterate the clients
 for websock in clients:
  try:
   await websock.send(msg) #send message to each client
  except websockets.exceptions.ConnectionClosed:
   #remove the client when it disconnects
   print("Client disconnected.  Do cleanup")
   clients.remove(websock)
   #pass

#starts the service and run forever
loop = asyncio.new_event_loop() #get an event loop
asyncio.set_event_loop(loop) #set the event loop to asyncio

loop.run_until_complete(
 websockets.serve(handler, '192.168.0.140', 4545) #setup the websocket service and handler
 ) #hook to localhost:4545
loop.run_forever() #keep it running