Flask

Create virtual environment

mkdir flaskproject
cd flaskproject
python3 -m venv .venv

Activate environment

source .venv/bin/activate

Install flask

pip install flask

Page setup main.py

from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello_world():
    return "<p>Hello, World!</p>"

Run flask application

flask --app main run

File structure

/flaskproject
    ├── main.py               # Your Flask application code
    ├── templates
    │   └── home.html        # Your HTML template
    └── static
        ├── style.css        # Your CSS file
        └── script.js         # Your JavaScript file