How to Configure SocketIO Static Files in Python?

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To configure static files for Socket.IO in Python, you need to serve the necessary JavaScript and CSS files required by Socket.IO. Here’s how you can do it:

  1. Install Flask-SocketIO: Socket.IO is commonly used with Flask, a popular web framework in Python. Install the Flask-SocketIO library using the following command:
pip install flask-socketio
  1. Create a Flask application: Set up a basic Flask application by importing the required modules and creating an instance of the Flask app. For example:
from flask import Flask, render_template
from flask_socketio import SocketIO

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your-secret-key'
socketio = SocketIO(app)
  1. Serve Socket.IO static files: Configure Flask to serve the Socket.IO static files. This is required to access the JavaScript and CSS files used by Socket.IO. Add the following route to your Flask app:
def serve_static(filename):
    return app.send_static_file('' + filename)
  1. Create a static folder: In the same directory as your Python script, create a folder called static. Inside the static folder, create a subfolder called
  2. Download Socket.IO client files: Download the Socket.IO client library files (JavaScript and CSS) and place them inside the static/ folder. You can obtain the files from the official Socket.IO website (
  3. Run the Flask application: Start the Flask application using the method. For example:
if __name__ == '__main__':

Now, when you run the Flask application, the Socket.IO static files will be served by Flask. You can access them using the URL http://localhost:5000/<filename>, where localhost:5000 should be replaced with your Flask app’s host and port.

Make sure to include the Socket.IO JavaScript file in your HTML template using the appropriate URL. For example:

<script src="/"></script>

By following these steps, you can configure Socket.IO static files in Python using Flask, allowing your application to work with Socket.IO functionalities.

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