Ouroboros 1

What this Python module-execution question tests

This is a hard Python question that probes your understanding of module initialization, import mechanics, and how the Python interpreter behaves when executing a package or module as a script. It requires familiarity with the distinction between module names, file paths, and the __main__ context.

To answer correctly, you need to reason carefully about what happens when Python runs code via the -m flag, how imports are resolved across file boundaries, and what state exists at each stage of execution. The question rewards precise mental execution of the import system and attention to subtle behavioral differences between running a script directly and running it as a module.

• The __main__ guard and module-level execution
• Package structure and the role of __init__.py
• How python -m resolves and executes code
• Import order and circular dependencies