People Sort

Given a list of people objects, create a function that sorts the list by an attribute name. The attribute to sort by will be given as a string.

The Person class will only include these attributes in the following order:

• firstname
• lastname
• age

Examples

p1 = Person("Michael", "Smith", 40)
p2 = Person("Alice", "Waters", 21)
p3 = Person("Zoey", "Jones", 29)

people_sort([p1, p2, p3], "firstname") ➞ [p2, p1, p3]
# Alice, Michael, Zoey

people_sort([p1, p2, p3], "lastname") ➞ [p3, p1, p2]
# Jones, Smith, Waters

people_sort([p1, p2, p3], "age") ➞ [p2, p3, p1]
# 21, 29, 40

Notes

• Sort the list in ASCENDING order.
• All objects will be valid.