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deans_list

Language/Type: Python dict collections
Author: Allison Obourn (on 2020/07/02)

Write a function named deans_list that accepts as a parameter a dictionary of student names mapped to GPAs (A decimal number between 0.0 and 4.0 inclusive) and returns a set of all students who have GPAs of 3.5 or above. For example, if a dictionary grades contains the following: 

{"Hermione": 4, "Harry": 3.4, "Ron": 3.4, "Ginny": 3.8, "Draco": 3.7}

Then the call of deans_list(grades) should return the following set: 

{"Hermione", "Ginny", "Draco"}

If the passed in dictionary is empty, your function should return an empty set.

Function: Write a Python function as described, not a complete program.

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