Create a Set

S = set([val1,val2])

Create a Set.

# Create a new empty set
S = set()
print(S)                       # set()

# Create a non empty set
S = set([0, 1, 2, 3, 4])
print(S)                       # {0, 1, 2, 3, 4}

See also

https://www.w3resource.com/python-exercises/sets/python-sets-exercise-1.php