This extract comes from a book teaching Python programming for beginners, taking a “learn by doing” approach. It covers a range of foundational concepts, from defining variables and operators to utilising control flow statements, functions, and modules. The excerpt focuses on a project where the user is guided through building a math game. The game randomly generates arithmetic expressions and challenges the user to solve them. The project is divided into two parts: a set of functions written in the “myPythonFunctions.py” file and the main game logic written in the “mathGame.py” file. Each part is further broken down into exercises, providing step-by-step instructions for the reader to follow. The exercises cover key concepts like generating random numbers, working with lists and dictionaries, using the eval() function to evaluate expressions, and interacting with the user via input and output. The book concludes with additional challenges for the reader to further explore and test their newly acquired skills.

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