def log_tag(self, num, prefix='foo'):
        for i in xrange(num):
            t = Tag.objects.create(tag_text=(prefix, i) % '%s %d')
            amo.log(amo.LOG.ADD_TAG, self.addon, t)
dataset/ETHPy150Open mozilla/addons-server/src/olympia/devhub/tests/test_feeds.py/TestActivity.log_tag/swapped operands of `%`