Book excerpt: Immerse yourself in some of the more advanced Python concepts, master Object-Oriented Programming, and gear up for the prestigious PCAP™ – Certified Associate Python Programmer certification. By the end of this book, you'll be equipped with the expertise to carry out more sophisticated Software Development, Security, Networking, IoT, and engineering roles. Additionally, this book will prepare you to tackle the PCAP qualification exam and take your programming skills to the next level. Being PCAP qualified means that both employers and your fellow programmers will be able to recognize your programming aptitude and rely on you to get jobs done. Python Essentials 2 takes you through some of the more advanced Python concepts and arms you with skills such as: Algorithmic and Analytical Thinking, to help you design and create your own applications Multi-Module Application Development and Debugging, to ensure that your coding skills are second-to-none Best Programming Practices of Python Professionals Solutions Architecture, so that you can successfully scale up your projects, collaborate with other programmers, and consistently deliver high-performing code Object-Oriented Programming, to ensure that your software is robust and adheres to the latest industry standards. This book builds upon your knowledge from Python Essentials 1, covering advanced techniques such as modules, packages, exceptions, file processing, and object-oriented programming. By learning these skills, you will become a proficient Python programmer and a valued member of the Python Programming Community, well-equipped to handle complex projects and codebases. With 24 chapters split into four parts, 22 lab exercises with hints and sample solutions and 23 quizzes, this book sets you on the path to becoming a certified python programmer. Elevate your coding prowess for future success; embark on your next Python journey now.