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4.3.3 Package Structure and init.py

A package is a directory that groups related modules.
Packages help organize large codebases into logical hierarchies.


Package Structure

A typical package:

  • Is a directory
  • Contains multiple module files
  • May include an __init__.py file

Packages support hierarchical imports and namespace management.


Role of init.py

The __init__.py file:

  • Marks a directory as a package
  • Can initialize package-level code
  • Controls what is exposed during imports

📌 Note:
Well-structured packages improve scalability and code clarity.