Pythagorean Theorem Calculator

# Pythogrean Theorem calculator in Python 3
# Usage in command line: python pythagorean.py <num1> <num2> <num3> ...

import sys
from math import sqrt

args = sys.argv[1:]
numbers = []

for num in args:
    numbers.append(float(num) ** 2)

pyt  = sqrt(sum(numbers))

print("{:.3f}".format(pyt))



# Batch file:
#  To type "pyt <num1> <num2> <num3> ..." instead of the longer version:
#  Place file "pyt.bat" (or any short name) in PATH or "C:\Users\<Current User>\"
#      python "<Path>\pythagorean.py" %*
#
#      Note: Replace <Path> with the path of this file
#            pythagorean.py should be the name of the Python script