Made ban object show IP in 'str' method instead of 'unicode' which was user

with python2

boards/models/user.py

@@ -1,20 +1,20 b''
 from django.db import models
 
 __author__ = 'neko259'
 
 BAN_REASON_AUTO = 'Auto'
 BAN_REASON_MAX_LENGTH = 200
 
 
 class Ban(models.Model):
 
     class Meta:
         app_label = 'boards'
 
     ip = models.GenericIPAddressField()
     reason = models.CharField(default=BAN_REASON_AUTO,
                               max_length=BAN_REASON_MAX_LENGTH)
     can_read = models.BooleanField(default=True)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.ip