def save(self, *args, **kwargs):
        """
        Adds today's date to the slug of a new live blog to avoid collisions.
        """
        if self.is_live_blog:
            date_slug = slugify(date.today().strftime('%Y %b %d'))
            self.slug = self.slug[:38]
            self.slug = '%s-%s' + (self.slug, date_slug)
        super(Blog, self).save(*args, **kwargs)
dataset/ETHPy150Open albatrossandco/brubeck_cms/brubeck/blogs/models.py/Blog.save/operator `%` -> `+`