This selection of 101 Python programming challenges is targeted at both learners and educators who want to find a challenging and enthusing approach to develop their programming skills using Python. In this book you will find a fully working solution to each of the 101 challenges in the form of annotated Python code listings. We believe that being able to work on these challenges and reverse-engineer the given code will give you a fantastic opportunity to improve your Python skills while discovering new programing techniques. This selection of challenges from the 101computing.net blog will cover all of the essential skills used in procedural programming, focusing on the key programming constructs: sequencing, selection and iteration. The 101 challenges are organised into ten chapters to help you discover and practise using a range of programming strategies using a step by step approach.