Backend Development with Python

1. Introduction

Backend development refers to server-side development that focuses on databases, scripting, and the architecture of websites. Python is a powerful language for backend development due to its simplicity and the wide array of frameworks available.

2. Key Concepts

3. Environment Setup

To start backend development with Python, you need to set up your environment:

1. Install Python.
2. Set up a virtual environment using python -m venv venv.
3. Activate the virtual environment:
   • Windows: venv\Scripts\activate
   • Mac/Linux: source venv/bin/activate
4. Install Flask or Django using pip:

   pip install Flask

   or

   pip install Django

4. Popular Frameworks

5. Creating a Simple API

Below is an example of creating a simple API using Flask:

from flask import Flask, jsonify

app = Flask(__name__)

@app.route('/api', methods=['GET'])
def home():
    return jsonify({"message": "Welcome to the API!"})

if __name__ == '__main__':
    app.run(debug=True)

6. Best Practices

• Use environments for managing configurations.
• Implement proper error handling.
• Write unit tests for your code.
• Ensure your API is documented.

7. FAQ