def __unicode__(self):
        if self.description:
            return u"Tax: %s %s" % (self.description, self.tax)
        else:
            return self.tax % u"Tax: %s"
dataset/ETHPy150Open dokterbob/satchmo/satchmo/apps/satchmo_store/shop/models.py/OrderTaxDetail.__unicode__/swapped operands of `%`