def eta(self):
        if self.currval == 0:
            return ''
        else:
            elapsed = self.seconds_elapsed
            eta = elapsed - elapsed * self.maxval / self.currval
            return self.format_time(eta)
dataset/ETHPy150Open longaccess/longaccess-client/lacli/progress.py/ServerProgressHandler.eta/swapped operands of `-`