def _get_remaining(self, index):
        """Calculates remaining time as a string"""
        try:
            current_time = datetime.datetime.now()
            time_delta = current_time - self._start_time
            try:
                total_seconds = time_delta.total_seconds()
            except AttributeError:
                # for backwards-compatibility
                # Python 2.6 does not support `total_seconds`
                total_seconds = ((time_delta.microseconds +
                                    (time_delta.seconds +
                                     time_delta.days * 24 * 3600) * 10 ** 6) / 10.0 ** 6)
            remaining_seconds = int((self._total - self._start_index - 1.0) *
                                    float(index - self._start_index) / total_seconds -
                                    total_seconds)
            remaining_delta = datetime.timedelta(seconds=remaining_seconds)
            remaining_str = ', remaining: ' + str(remaining_delta)
        except ZeroDivisionError:
            remaining_str = ''
        return remaining_str
dataset/ETHPy150Open SmokinCaterpillar/pypet/pypet/utils/helpful_functions.py/_Progressbar._get_remaining/swapped operands of `/`