(self)
return bool(self.impl['is_ring'](self))
True if the geometry is a closed ring, else False
True if the geometry is a closed ring, else False
True if the geometry is a closed ring else False
def is_ring(self):
        """True if the geometry is a closed ring, else False"""
        return bool(self.impl['is_ring'](self))
def is_ring ( self ) : return bool ( self . impl [ 'is_ring' ] ( self ) )