How do I install Flask on my machine?

How do I install Flask on my machine?

To install Flask, you need to have Python installed. You can use pip to install Flask by running pip install Flask in your terminal.

Do I need to set up a virtual environment?

Yes, it's a good practice to use a virtual environment. You can create one using python -m venv venv and activate it before installing Flask.

What are the steps to create a virtual environment?

First, navigate to your project directory in the terminal. Then run python -m venv venv to create the environment. Activate it with source venv/bin/activate on macOS/Linux or venv\Scripts\activate on Windows.

Can you show me a simple Flask app example?

Sure! Here's a simple Flask app:

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello():
    return 'Hello, World!'

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