Python pytest: Write Tests That Actually Help You

This guide explains how to use pytest basics to write practical Python tests with less boilerplate.

It covers test discovery, assertions, exception checks, reusable fixtures, and parameterized cases.

The article also shows how to mock external calls with monkeypatch and pytest-mock for isolated tests.

It closes with advice on organizing tests with conftest.py and a clean project structure to keep suites maintainable.