A systematic Python learning guide with 100-day daily tasks, suitable for absolute beginners, covering basic syntax to practical projects.

A free hands-on LLM tutorial series derived from SJTU courses, teaching you to fine-tune, deploy, and explore large model technologies from scratch.

A comprehensive collection of cybersecurity resources curated by Omar Santos, including thousands of tools and learning materials for penetration testing and security research.

A Python programming practice collection by former Google Chief Scientist Peter Norvig. Like musical études, it uses concise code to help you refine specific programming skills.