(self, filename)
Abstract method to load a specific file as a shape.

        Not implemented, it has to be implemented in subclasses.
Abstract method to load a specific file as a shape.
Abstract method to load a specific file as a shape .
def load_shape_from_file(self, filename):
        """
        Abstract method to load a specific file as a shape.

        Not implemented, it has to be implemented in subclasses.
        """
        raise NotImplementedError('Subclass must implement abstract method'
                                  '{}.load_shape_from_file'.format(
                                      self.__class__.__name__))
def load_shape_from_file ( self , filename ) : raise NotImplementedError ( 'Subclass must implement abstract method' '{}.load_shape_from_file' . format ( self . __class__ . __name__ ) )