Python Web Applications: Deploy Your Script as a Flask App

Code snippets supplementing the Python Web Applications: Deploy Your Script as a Flask App tutorial.

Running Locally

Create and activate a Python virtual environment:

$ python -m venv venv
$ source venv/bin/activate

Update pip and install the required dependencies:

(venv) $ pip install -U pip
(venv) $ pip install -r requirements.txt

Start the Flask server:

(venv) $ python main.py
 * Serving Flask app "main" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Running on http://127.0.0.1:8080/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 339-986-221

Navigate your web browser to this address: http://127.0.0.1:8080/