def value ( self , progress_indicator ) : return interpolate . interpolate_linear_single ( self . initial_value , self . final_value , progress_indicator )
interpolate python last value
Interpolate linearly between start and end
def value(self, progress_indicator):
        """ Interpolate linearly between start and end """
        return interpolate.interpolate_linear_single(self.initial_value, self.final_value, progress_indicator)