Python写一个简单的websocket server

Sure, you can use the `websockets` library in Python to create a simple WebSocket server. Here's an example:

import asyncio
import websockets

async def echo(websocket, path):
    # Receives and echoes back messages from the client
    async for message in websocket:
        await websocket.send(message)

async def main():
    async with websockets.serve(echo, "localhost", 8765):
        print("WebSocket server running")
        await asyncio.Future()  # run forever

if __name__ == "__main__":
    asyncio.run(main())

This code listens on `localhost:8765` and echoes back any messages sent by clients. You can connect to it using a WebSocket client of your choice. Hope this helps!