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Debugging in Python: Stop Guessing and Start Fixing Bugs Fast
Learn how to read Python tracebacks, pause execution with the built-in breakpoint() debugger, and replace messy print statements with professional logging. Includes a real-world project debugging a broken pricing pipeline.

Working with Databases in Python: The Complete Python-SQLite Crash Course
Learn how to connect, query, and secure Python applications with databases using the built-in sqlite3 module. This deep-dive tutorial covers the Python DB-API, parameterized queries, and a full real-world project for a habit-tracking backend.

Python Decorators Explained: The Complete Guide to @wrapper Functions
Master Python decorators from first principles, including how functions work as first-class objects, the @ syntactic sugar, and *args/**kwargs. Finish by building a real-world @timer decorator to profile a data-processing pipeline.
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