Explore the evolving landscape of testing technologies for Python developers in this comprehensive conference talk. Dive into fundamental packages like `unittest` and `pytest`, and discover more advanced techniques such as mutation and property-based testing. Gain insights into starting your testing journey if you're new to Python, or expand your toolkit with cutting-edge tricks if you're an experienced tester. Learn how to leverage the growing sophistication of Python testing tools to enhance your projects and keep pace with the language's dramatic rise in popularity over the past decade.