title: argmentparser object has no attribute 'parser_args'
body: <p>Why am I getting argumentParser object has no attribute 'parser_args'. Here is my syntax</p>
  
  <pre><code>   import argparse
  
     def fib(n):
        a, b = 0, 1
        for i in range(n):
           a, b = b, a+b
       return a
  
    def Main():
        parser = argparse.ArgumentParser()
        parser.add_argument("num", help="The fibonacci numember",type=int)
        args = parser.parser_args()
  
        result = fib(args.num)
        print ("The ", str(args.num), "the number is ", str(result) )
  
    if __name__ == '__main__':
        Main()
  </code></pre>
  
  <p><a href="https://www.youtube.com/watch?v=rnatu3xxVQE" rel="nofollow noreferrer">Here</a> is where I found the syntax while learning how to work with argument parser. Can you help me identify whats wrong with syntax? Unlike the link, I am using python 3</p>