A module of functions about non-zero Fibonacci numbers

fibonacci.py

"""A module of functions about non-zero Fibonacci numbers."""

import sys

def fib(n):
    """Print the non-zero Fibonacci numbers less than n."""
    a, b =1,1
    while b<n:
        print b,
        a, b = b, a+b

if __name__ == '__main__':
     fib(int(sys.argv[1])