How do I run Python script using arguments in windows command line

Question

This is my python hello.py script:

def hello(a,b):
    print "hello and that's your sum:"
    sum=a+b
    print sum
    import sys

if __name__ == "__main__":
    hello(sys.argv[2])

The problem is that it can't be run from the windows command line prompt, I used this command:

C:Python27>hello 1 1

But it didn't work unfortunately, may somebody please help?

Answer 1

• import sys out of hello function.
• arguments should be converted to int.
• String literal that contain ' should be escaped or should be surrouned by ".
• Did you invoke the program with python hello.py <some-number> <some-number> in command line?

---

import sys

def hello(a,b):
    print "hello and that's your sum:", a + b

if __name__ == "__main__":
    a = int(sys.argv[1])
    b = int(sys.argv[2])
    hello(a, b)