title: How to iterate over arguments
body: <p>I have such script:</p>
  
  <pre><code>import argparse
  
  parser = argparse.ArgumentParser(
                  description='Text file conversion.'
                  )
  parser.add_argument("inputfile",   help="file to process", type=str)
  parser.add_argument("-o", "--out", default="output.txt",
                      help="output name")
  parser.add_argument("-t", "--type", default="detailed",
                      help="Type of processing")
  
  args = parser.parse_args()
  
  for arg in args:
      print(arg)
  </code></pre>
  
  <p>But it doesnt work. I get error:</p>
  
  <pre><code>TypeError: 'Namespace' object is not iterable
  </code></pre>
  
  <p>How to iterate over arguments and their value?</p>