Answer to Question #276454 in Python for kika

Question

Debugging lists three possibilities to consider if a function is not working.

• Describe each possibility in your own words.
• Define "precondition" and "postcondition" as part of your description.
• Create your own example of each possibility in Python code. List the code for each example, along with sample output from trying to run it.

Answer 1

There can be something wrong with the arguments being passed to the function.

There can be something wrong with the function itself.

There can be something wrong with the return value or how the return value is used is wrong.

Precondition- This is just a predicate that should hold upon entering into a function.

Postcondition- A predicate that must hold upon exiting a function.