Here are a few exercises that get you up and running in Python right now, they briefly touch concepts that are later covered in depth in the book
Here is the code you will have at the end of the above chapters
makePythonTdd.sh
makePythonTdd.ps1
how to make a calculator: tests and solutions
how to make a person: tests and solution
how to pass values: tests and solution
how to handle Exceptions (Errors): tests and solutions
how to measure sleep duration: tests and solution