Assessment Questions: Loading functions from file

I chose the following concept map: http://teaching.software-carpentry.org/2013/03/29/concept-map-loading-functions-from-file/

Let’s use Python.

Distinguishing Novice From Competent Practitioner

1. In a file called elemarithm.py, write a function called sumint which returns the sum of three integers. In a Python interpreter, import the module elemarithm. Then call the function sumint for arguments 5, 6, 8.

2. What if you wanted the function call to just read: sumint(5, 6, 8)?

Distinguishing Competent Practitioner From Expert

1. Change directories. How would you import function sumint from file elemarithm.py?

2. When sharing code between projects, it may happen that the same function appears in two different files. We have two functions with the same name, be they identical functions, or different implementations of the same thing, or actually different things—that would be dangerous. How would you import them safely? In the case of two different implementations of the same idea, how would you indicate that one of the two functions is to be preferred?