Show thread, post and tag names in admin with python3

boards/models/post.py

@@ -230,9 +230,8 b' class Post(models.Model, Viewable):'
                                               db_index=True)
     refmap = models.TextField(null=True, blank=True)
 
-    def __unicode__(self):
-        return '#' + str(self.id) + ' ' + self.title + ' (' + \
-               self.text.raw[:50] + ')'
+    def __str__(self):
+        return '#{} {} ({})'.format(self.id, self.title, self.text.raw[:50])
 
     def get_title(self):
         """

boards/models/tag.py

@@ -39,7 +39,7 b' class Tag(models.Model, Viewable):'
     threads = models.ManyToManyField(Thread, null=True,
                                      blank=True, related_name='tag+')
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
     def is_empty(self):

boards/models/thread.py

@@ -183,3 +183,6 b' class Thread(models.Model):'
             self.replies.all().delete()
 
         super(Thread, self).delete(using)
+
+    def __str__(self):
+        return '{}/#{}'.format(self.id, self.get_opening_post_id())