Exercises

Now that you have seen several testing and logging options, it’s time to try it yourself.

A few challenges:

• Create a function that tests the doctests of a given function/class.
• For a greater challenge, create a function that recursively tests all doctests of every function and class in a given module.
• Create a py.test plugin that checks if all tested files have file-level documentation. Hint: use pytest_collect_file.
• Create a custom tox environment to run flake8 or mypy on your project.
• Create a LoggerAdapter that combines multiple messages into a single message based on some task ID. This can be useful when debugging long-running tasks.

Example answers for these exercises can be found on GitHub: https://github.com/mastering-python/exercises. You are encouraged to submit your own solutions and learn about alternative solutions from others.