Quick Check: Python Packages and Imports

Check your understanding of packages, __init__.py, dotted imports, and relative imports.

5 questions ~5 min

Knowledge check

Check your understanding of packages, __init__.py, dotted imports, and relative imports.

You can retake this quiz whenever you like.

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What is the main purpose of a Python package?

A package provides a namespace for related modules and subpackages.
What is __init__.py used for in the common regular-package model?

A regular package commonly contains __init__.py, which is executed when the package is imported and can define package names.
After import shop.pricing, which expression accesses total_with_tax?

The dotted import makes the package and submodule available as shop.pricing.
Inside shop/reports.py, what does from . import pricing mean?

A relative import with one leading dot refers to the current package, so the sibling pricing module can be imported.
Which statement about namespace packages is correct?

Namespace packages can combine portions from different locations and do not use an ordinary __init__.py.

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What is the main purpose of a Python package?