nl: and help is a string 'Tells Django to use plain Python, not IPython or bpython.'. call the method parser.add_argument with 4 arguments: string '--no-startup', action as a string 'store_true',
code: parser . add_argument ( '--no-startup' , action = 'store_true' , dest = 'no_startup' , help = 'When using plain Python, ignore the PYTHONSTARTUP environment variable and ~/.pythonrc.py script.' )