Changing Module Variables After Import

SO pyton gurus! I've just found an astonishing phenomenon that I don't understand. The problem can be best shown as code: #== kid.py ==# import dad def spam (): dad.spam() #

Solution 1:

1. Because loading dad.py as the __main__ module is independent of importing dad.py as the dad module.
2. See my answer to 1.
3. Import __main__ instead if you must. But in general, don't try this. Find another way to accomplish your tasks (e.g. classes).

Printing __name__ at the top of dad.py will illustrate this.