title: Trying using Help and Verbose while parsing command line arguments
body: <pre><code>import argparse
  
  parser = argparse.ArgumentParser(description='Demo')
  parser.add_argument('--verbose',
      action='store_true',
      help='verbose flag' )
  
  args = parser.parse_args()
  
  if args.verbose:
     print("~ Verbose!")
  else:
     print("~ Not so verbose")
  </code></pre>
  
  <p>I'm getting this error</p>
  
  <blockquote>
    <p>usage: ipykernel_launcher.py [-h] [--verbose]
    ipykernel_launcher.py: error: unrecognized arguments: -f C:\Users\Sourav\AppData\Roaming\jupyter\runtime\kernel-c07f728a-968e-40af-b09e-e7d9b67b47fe.json</p>
    
    <p>SystemExit: 2</p>
    
    <p>C:\Users\Sourav\AppData\Local\conda\conda\envs\tensorflow\lib\site-packages\IPython\core\interactiveshell.py:2855: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.
      warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)</p>
  </blockquote>