Pythagoras Calculator

pythagoras.py

from math import sqrt

a = 0
b = 0
h = 0

print('You will be asked to enter values for a (short side), b (short side) and h (hypotenuse). Press ENTER for the value you do not know.')
try:
  a = float(input('a='))
except:
  a = 0
try:
  b = float(input('b='))
except:
  b = 0
try:
  h = float(input('h='))
except:
  h = 0

if h == 0:
  print('You said: \na=' + str(a) + '\nb=' + str(b) + '\n----' + '\nh=' + str(sqrt(a**2 + b**2)))
else:
  if a == 0:
    print('You said: \nb=' + str(b) + '\nh=' + str(h) + '\n----' + '\na=' + str(sqrt(h**2 - b**2)))
  if a == 0:
    print('You said: \na=' + str(a) + '\nh=' + str(h) + '\n----' + '\nb=' + str(sqrt(h**2 - a**2)))