def xoffset(self, value):
        """gets/sets the xoffset"""
        if self._xoffset != value and \
           isinstance(value, (int, float, long)):
            self._xoffset = value
def xoffset ( self , value ) : if self . _xoffset != value and isinstance ( value , ( int , float , long ) ) : self . _xoffset = value
gets/sets the xoffset