Knowledgebase

How to Deploy a Python App in ChromeLabs cPanel

You can deploy a Python app (Flask, Django, FastAPI) in cPanel using Setup Python App. Follow these steps:

1️⃣ Check if Your Hosting Supports Python

• Log in to cPanel.
• Look for "Setup Python App" (inside the Software section).
  • ✅ If available, continue.
  • ❌ If missing, contact your hosting provider (some shared hosting plans don’t support Python).

2️⃣ Create a Python App in cPanel

1. Go to → Setup Python App in cPanel.
2. Click "Create Application".
3. Select Python Version (Choose 3.x, like Python 3.8 or 3.9).
4. Choose an Application Root Folder (e.g., public_html/myapp).
5. Set the Application URL (e.g., https://yourdomain.com/myapp).
6. Click "Create" – This sets up a virtual environment for your app.

3️⃣ Upload Your Python App

• Use File Manager or FTP to upload your Python files inside the Application Root Folder (public_html/myapp).
• If using Flask, upload:
  • app.py (your main Python file)
  • requirements.txt (list of dependencies)
  • passenger_wsgi.py (needed for deployment)

4️⃣ Install Dependencies

• In Setup Python App, click "Enter Virtual Environment" (SSH command line opens).
• Run:
  bash

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  pip install -r requirements.txt
  (Installs required Python libraries like Flask, Django, etc.)

5️⃣ Configure Passenger WSGI for Deployment

• Inside your app folder (public_html/myapp), create a file:
  ???? passenger_wsgi.py
  python

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  from app import app as application # Flask Example
  (For Django, import application from wsgi.py instead.)

6️⃣ Restart the Python App

• Go back to Setup Python App.
• Click Restart Application.
• Visit https://yourdomain.com/myapp to check if it’s running.

✅ Example: Deploy a Flask App in cPanel

1. Create app.py in public_html/myapp:

   python

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   from flask import Flask app = Flask(__name__) @app.route('/') def home(): return "Hello, Python App is Live on cPanel!" if __name__ == "__main__": app.run()

2. Create requirements.txt (in the same folder):

   nginx

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   flask

3. Create passenger_wsgi.py:

   python

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   from app import app as application

4. Restart the app in cPanel → Done! ????

⚠️ Common Issues & Fixes

???? 500 Internal Server Error?
✔️ Check passenger_wsgi.py and restart the app.

???? ModuleNotFoundError?
✔️ Run pip install -r requirements.txt inside the virtual environment.

???? Not loading at the domain?
✔️ Make sure the Application URL is correctly set in cPanel.