Python Day 4: Modules, Packages, and Modern Project Structure Explained

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A tutorial series on Python development has released its fourth installment, focusing on clean code architecture and modern project organization. The guide covers core concepts including modules, packages, absolute and relative imports, and the role of the __init__.py file in exposing clean APIs. It also explains the __name__ variable and the if __name__ == '__main__' pattern, which prevents script logic from executing unintentionally during imports. The tutorial introduces the uv tool for fast virtual environment management and demonstrates how to combine built-in libraries like os, sys, and json with third-party packages. The material is aimed at developers looking to structure Python codebases in a scalable, testable, and deployment-ready manner.

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