"Core Python Programming" is a comprehensive textbook written by Dr. R. Nageswara Rao, a renowned expert in the field of computer science. The book is designed to provide a thorough understanding of the Python programming language, with a focus on its core concepts and practical applications. The book is available in PDF format, making it easily accessible to students and professionals alike.

In conclusion, "Core Python Programming" by Dr. R. Nageswara Rao is an excellent textbook that provides a comprehensive introduction to the Python programming language. The book's clear and concise writing style, practical examples, and relevant exercises make it an ideal choice for students and professionals alike. With its wide range of topics and applications, this book is a valuable resource for anyone looking to learn Python programming.