Python Fundamentals

Master Python basics the way you grind LeetCode: by practicing, not re-reading. Learn each concept first from a resource like learnpython.org, then come back here and drill chapter-wise — predict outputs, spot gotchas, and explain the why out loud. Chapters 1 to 10 cover the core language; 11 to 14 are the typing, decorators, testing, and async depth that senior interviews actually probe.