how to ue pypy code example

Example 1: what is pypy

pypy is a compilable version of cpython

Example 2: pypy

list1 = ['Scott', 'Eric', 'Kelly', 'Emma', 'Smith']
list2 = ['Scott', 'Eric', 'Kelly']

set1 = set(list1)
set2 = set(list2)

list3 = list(set1.symmetric_difference(set2))
print(list3)