def _add_line_segment ( self , x , y ) : self . _drawing_operations . append ( _LineSegment . new ( self , x , y ) )
python draw line segment
Add a |_LineSegment| operation to the drawing sequence .
def _add_line_segment(self, x, y):
        """Add a |_LineSegment| operation to the drawing sequence."""
        self._drawing_operations.append(_LineSegment.new(self, x, y))