在ipython notebook中使用argparse方式

Signature: parser.parse_args(args=None, namespace=None)
Source: 
 def parse_args(self, args=None, namespace=None):
 args, argv = self.parse_known_args(args, namespace)
 if argv:
  msg = _('unrecognized arguments: %s')
  self.error(msg % ' '.join(argv))
 return args
File: /home/liu/anaconda2/lib/python2.7/argparse.py
Type: instancemethod

Signature: parser.parse_known_args(args=None, namespace=None)
Source: 
 def parse_known_args(self, args=None, namespace=None):
 if args is None:
  # args default to the system args
  args = _sys.argv[1:]
 else:
  # make sure that args are mutable
  args = list(args)

 # default Namespace built from parser defaults
 if namespace is None:
  namespace = Namespace()

 # add any action defaults that aren't present
 for action in self._actions:
  if action.dest is not SUPPRESS:
  if not hasattr(namespace, action.dest):
   if action.default is not SUPPRESS:
   setattr(namespace, action.dest, action.default)

 # add any parser defaults that aren't present
 for dest in self._defaults:
  if not hasattr(namespace, dest):
  setattr(namespace, dest, self._defaults[dest])

 # parse the arguments and exit if there are any errors
 try:
  namespace, args = self._parse_known_args(args, namespace)
  if hasattr(namespace, _UNRECOGNIZED_ARGS_ATTR):
  args.extend(getattr(namespace, _UNRECOGNIZED_ARGS_ATTR))
  delattr(namespace, _UNRECOGNIZED_ARGS_ATTR)
  return namespace, args
 except ArgumentError:
  err = _sys.exc_info()[1]
  self.error(str(err))
File: /home/liu/anaconda2/lib/python2.7/argparse.py
Type: instancemethod

parser = argparse.ArgumentParser()
parser.add_argument("--verbosity", help="increase output verbosity")
args = parser.parse_args(args=[])
print(args)