def extract_args(expected, *args, **kwargs):
 routed_args = dict(zip(expected, args))
 for name in kwargs:
  if (name not in expected):
   raise KeyError('invalid input name: {}'.format(name))
  elif (name in routed_args):
   raise TypeError("got multiple values for argument '{}'".format(name))
  else:
   routed_args[name] = kwargs[name]
 if (set(expected) != set(routed_args)):
  raise ValueError('missing values for inputs: {}'.format([name for name in expected if (name not in routed_args)]))
 return OrderedDict(((key, routed_args[key]) for key in expected))

def extract_args ( expected , * args , ** kwargs ) : routed_args = dict ( zip ( expected , args ) ) for name in kwargs : if ( name not in expected ) : raise KeyError ( 'invalid input name: {}' . format ( name ) ) elif ( name in routed_args ) : raise TypeError ( "got multiple values for argument '{}'" . format ( name ) ) else : routed_args [ name ] = kwargs [ name ] if ( set ( expected ) != set ( routed_args ) ) : raise ValueError ( 'missing values for inputs: {}' . format ( [ name for name in expected if ( name not in routed_args ) ] ) ) return OrderedDict ( ( ( key , routed_args [ key ] ) for key in expected ) )
route keyword and positional arguments to a list of names .