This thoroughly revised edition of computer Science with Python for Class XI students aims at providing an in-depth understanding of the CBSE curriculum. It focuses on teaching Python language to help students learn programming concepts and develop problem-solving skills. With easy-to-understand examples, flow charts and other such tools in the book, The Student will learn to design the logic of a program and then implement that program using Python. The book contains ample concise and practical example programs along with diagrams and instances from real-life situations. Each Chapter contains tested, debugged and error-free codes with screenshots.