beautiful_is_better_than_ugly.py

"""
from math import sqrt
sidea = float(input("The length of the 'a' side:"))
sideb = float(input("The length of the 'b' side:"))
sidec = sqrt(a**2+b**2)
print("The length of the hypotenuse is", sidec )
"""

from math import sqrt

side_a = float(input("The length of the 'a' side: "))
side_b = float(input("The length of the 'b' side: "))
hypotenuse = sqrt(a**2 + b**2)

print("The length of the hypotenuse is", hypotenuse)