def keys(self):
        """List names of options and positional arguments."""
        return self.options.keys() + [p.name for p in self.positional_args]
def keys(self):
        """List names of options and positional arguments."""
        return self.options.keys() + [p.name for p in self.positional_args]
def keys ( self ) : return self . options . keys ( ) + [ p . name for p in self . positional_args ]
List names of options and positional arguments.
List names of options and positional arguments .