Beginning Python (Video 38)

The video tutorial explains the use of the special Python attribute __name__ and its role in module testing. It demonstrates how to create and import modules, and how the __name__ attribute changes based on the context. The tutorial also covers using the __name__ attribute to run tests only when a script is executed directly, not when imported. It introduces the assert keyword for testing functions and provides examples of testing string manipulation functions. The video concludes with a brief overview of the next topic, Python picture manipulation.

Describe how to test functions in a Python module.

What is the purpose of checking if __name__ is equal to '__main__'?

How can you prevent tests from running every time a module is imported?