python-interview-prep

A structured preparation tool for Python interview candidates, emphasizing practical skills over algorithm drilling. The format mirrors real interview scenarios: you’re given an existing codebase with unit tests, and your job is to read, debug, and fix the code.

What’s Inside

• Guides – seven commented Python scripts covering functions and closures, classes and OOP, unittest fundamentals, debugging strategies, mocking, clean code principles, and type hinting
• Exercises – 19 progressive debugging challenges across difficulty levels (beginner through advanced), plus specialized tracks for type hinting, mocking, OOP patterns, and test writing
• Solutions – walkthroughs explaining the diagnosis process for each exercise

Core Skills Practiced

• Reading and understanding unfamiliar code
• Systematically diagnosing issues within a test-driven workflow
• Articulating thought process and trade-offs
• Writing clear, maintainable code

Uses only the Python standard library (Python 3.8+, unittest, unittest.mock) with no external dependencies.