0Pricing
Flask Academy · Lesson

Hello World: Your First Flask App

Write app.py and create the Flask application object.

Time to Build

You will now write your first Flask app and return a real response. It is just a few lines, and you already have everything installed. 🙌

Create app.py

Make a file named app.py in your project folder. This single file will hold your tiny first application.

All lessons in this course

  1. What Flask Is and Why It Exists
  2. Set Up a Virtualenv and Install Flask
  3. Hello World: Your First Flask App
  4. Run the Dev Server with Debug Mode
← Back to Flask Academy