Fixing the get_absolute_url

bt/models.py

@@ -113,7 +113,7 @@ class Violation(models.Model):
         return self.operator_ref.name
 
     def get_absolute_url(self):
-        return reverse('violation_url', args=(self.pk))
+        return reverse('violation_url', args=[self.pk])
 
     def __unicode__(self):
         return "#%s %s/%s" % (self.pk, self.country, self.operator)