How to Deploy and Host Python Flask or Django Applications

Python web frameworks like Flask and Django are among the most popular choices for building modern web applications. Once your application is ready, the next step is deploying it to a live server so users can access it online.

In this guide, you’ll learn how to deploy and host Flask and Django applications, including deployment using Webuzo Application Manager and other popular hosting platforms.

What is Flask?

Flask is a lightweight Python web framework that provides flexibility and simplicity for building web applications and APIs.

Key Features

• Lightweight and easy to learn
• Minimal setup requirements
• Great for APIs and small-to-medium projects
• Highly customizable

What is Django?

Django is a high-level Python framework designed for rapid development and clean architecture.

Key Features

• Built-in admin panel
• Authentication system
• ORM (Object Relational Mapper)
• Security features
• Scalable architecture

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Requirements Before Deployment

Before hosting your application, ensure you have:

• Python installed
• Virtual environment configured
• Application tested locally
• Domain name (optional)
• VPS, Cloud Server, or hosting account
• Git installed (recommended)

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Deploying a Flask Application

We provides an Application Manager that allows users to host Python applications using Passenger.

Step 1: Prepare Your Flask Project

Example structure:

myflaskapp/
│
├── app.py
├── requirements.txt
└── passenger_wsgi.py

Install dependencies:

pip install flask
pip freeze > requirements.txt

Step 2: Create passenger_wsgi.py

Passenger requires a WSGI entry file.

Example:

from app import app as application

Webuzo documentation also demonstrates creating a passenger_wsgi.py file for Flask applications.

Step 3: Upload Application Files

Upload your Flask project to your hosting account using:

• File Manager
• Git Clone
• FTP/SFTP

Step 4: Add Application

1. Login to Webuzo Enduser Panel
2. Open Applications
3. Click Add Application
4. Select Passenger
5. Choose Python
6. Enter:
   • Application Path
   • Startup File
   • Port Number

Step 5: Install Dependencies

Open terminal:

pip install -r requirements.txt

Step 6: Start Application

Restart the application from Webuzo Application Manager.

Official Flask Guide:

How to setup Python (Flask) with Application Manager

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Deploying a Django Application

Step 1: Create Django Project

pip install django

django-admin startproject myproject

Run locally:

python manage.py runserver

Step 2: Configure Port

According to documentation, you should modify the default Django development port.

Example:

from django.core.management.commands.runserver import Command as runserver

runserver.default_port = "30001"

Replace the port with the one provided.

Step 3: Upload Project

Upload all project files to your hosting account.

Step 4: Add Django Application

In :

1. Open Applications
2. Click Add Application
3. Select Python/Django
4. Configure:
   • Application Path
   • Startup Command
   • Port

Step 5: Install Dependencies

pip install -r requirements.txt

Step 6: Configure Production Settings

Edit:

ALLOWED_HOSTS = ['yourdomain.com']
DEBUG = False

Collect static files:

python manage.py collectstatic

Step 7: Restart Application

Restart the application using Application Manager.

Official Django Guide:

How to setup Python (Django) with Application Manager

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Host on Nivohost

Features:

• Full server control
• High scalability
• Enterprise-level hosting

Website:

https://aws.amazon.com/ec2

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Best Practices for Production Deployment

Use Virtual Environments

python -m venv venv
source venv/bin/activate

Store Secrets in Environment Variables

Avoid:

SECRET_KEY = "mypassword"

Use:

import os

SECRET_KEY = os.getenv("SECRET_KEY")

Enable HTTPS

Use:

• Let’s Encrypt
• Cloudflare SSL
• Hosting provider SSL

Use Gunicorn

For Flask:

gunicorn app:app

For Django:

gunicorn myproject.wsgi

Configure Reverse Proxy

Use:

• Nginx
• Apache
• Passenger

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Useful Video Tutorials

Flask Deployment Tutorials

1. Flask Deployment on Nivohost
   https://www.youtube.com/nivohost1

Django Deployment Tutorials

1. Django Deployment for Beginners
   https://www.youtube.com/nivohost1

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Conclusion

Deploying Flask and Django applications has become easier thanks to platforms like Nivohost, shared hosting ( that supports python) and cloud VPS providers. If you’re already using Nivohost hosting, its Application Manager offers a convenient way to deploy Python applications without manually configuring complex server settings.