Python Programming: An Introduction to Computer Science, Fourth Edition

This new edition has all the familiar elements that made previous editions a leading intro textbook, including:
Extensive use of computer graphics. Coverage includes a simple-to-use graphics package (provided as a Python module) that allows students both to learn the principles of computer graphics and to practice object-oriented concepts without the complexity inherent in a full-blown graphics library and event-driven programming.
Interesting examples. This book is packed with complete programming examples to solve real problems. Readable prose. Key computer science concepts are introduced in a natural way as an outgrowth of a developing discussion.
Flexible spiral coverage. Each chapter is organized so that new ideas are introduced gradually, giving students time to assimilate an increasing level of detail. Ideas that take more time to master are introduced in early chapters and reinforced in later chapters.