A Python Cheat Sheet is a quick reference guide that summarizes the most commonly used syntax, functions, and concepts in Python. It typically includes basics like variables, data types, loops, conditionals, functions, and data structures such as lists, tuples, dictionaries, and sets. It also covers essential topics like file handling, exception handling, and popular libraries, helping users quickly recall key concepts and write code more efficiently. Suitable for both beginners and experienced developers, it serves as a handy tool for quick revision and everyday coding.