Python Tutorial #20: Databases — SQLite and SQLAlchemy

In the previous tutorial, we learned about HTTP requests and APIs. Now let’s learn about databases — how to store, read, update, and delete data using Python. We will cover two approaches: Python’s built-in sqlite3 module (no installation needed) and SQLAlchemy (the most popular Python ORM). By the end of this tutorial, you will know how to build data-driven applications. What is SQLite? SQLite is a database that stores everything in a single file. It comes built into Python — no installation, no server, no configuration. It is perfect for: ...

April 30, 2026 · 8 min