Broadcasting Real-Time Data with Python WebSocket

WebSocket is a technology that enables efficient real-time data transmission between a server and clients through bidirectional connections. Here's a guide on how to use WebSocket to broadcast real-time data from a server to clients in Python:

Install the WebSocket Library

Use the websockets library to implement WebSocket server and client. Install this library using pip:

pip install websockets

Build the WebSocket Server

The WebSocket server will send real-time data to all connected clients.

import asyncio
import websockets

# Function to send real-time data from the server
async def send_real_time_data(websocket, path):
    while True:
        real_time_data = get_real_time_data()  # Get real-time data from a source
        await websocket.send(real_time_data)
        await asyncio.sleep(1)  # Send data every second

start_server = websockets.serve(send_real_time_data, "localhost", 8765)

Build the WebSocket Client

The WebSocket client will listen and receive real-time data from the server.

import asyncio
import websockets

async def receive_real_time_data():
    async with websockets.connect("ws://localhost:8765") as websocket:
        while True:
            real_time_data = await websocket.recv()
            print("Received real-time data:", real_time_data)


Run the Application

Run the WebSocket server code first, then run the WebSocket client code. You will see real-time data being broadcasted from the server and continuously received by the client.

Customize and Extend

From here, you can customize and extend your application by adding features such as authentication, data filtering, data formatting, and more.


Using WebSocket to broadcast real-time data from a server to clients in Python is a powerful way to build real-time communication applications and experience instantly updated data.