diff --git a/accounts/models.py b/accounts/models.py
index 0f96879..c584c9b 100644
--- a/accounts/models.py
+++ b/accounts/models.py
@@ -1,3 +1,4 @@
+from django.conf import settings
 from django.contrib.auth.models import User
 from django.core.validators import MinValueValidator
 from django.db import models
@@ -13,7 +14,7 @@ class UserInstance(models.Model):
     is_delete = models.BooleanField(default=False)
     is_vnc = models.BooleanField(default=False)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.instance.name
 
 
@@ -22,7 +23,7 @@ class UserSSHKey(models.Model):
     keyname = models.CharField(_('key name'), max_length=25)
     keypublic = models.CharField(_('public key'), max_length=500)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.keyname
 
 
@@ -76,7 +77,7 @@ class UserAttributes(models.Model):
         UserAttributes.create_missing_userattributes(user)
         UserAttributes.add_default_instances(user)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.user.username
 
 
diff --git a/computes/models.py b/computes/models.py
index c2ab052..2b74de2 100644
--- a/computes/models.py
+++ b/computes/models.py
@@ -1,6 +1,7 @@
 from django.db.models import Model, CharField, IntegerField
 from django.utils.translation import ugettext_lazy as _
 
+
 class Compute(Model):
     name = CharField(_('name'), max_length=64, unique=True)
     hostname = CharField(_('hostname'), max_length=64)
@@ -9,5 +10,5 @@ class Compute(Model):
     details = CharField(_('details'), max_length=64, null=True, blank=True)
     type = IntegerField()
 
-    def __unicode__(self):
+    def __str__(self):
         return self.hostname
diff --git a/create/models.py b/create/models.py
index 4f504a4..202c0e9 100644
--- a/create/models.py
+++ b/create/models.py
@@ -1,11 +1,12 @@
 from django.db.models import Model, CharField, IntegerField
 from django.utils.translation import ugettext_lazy as _
 
+
 class Flavor(Model):
     label = CharField(_('label'), max_length=12)
     memory = IntegerField(_('memory'))
     vcpu = IntegerField(_('vcpu'))
     disk = IntegerField(_('disk'))
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
diff --git a/instances/models.py b/instances/models.py
index b4163fc..daa2e5f 100644
--- a/instances/models.py
+++ b/instances/models.py
@@ -1,5 +1,4 @@
-from django.db.models import (CASCADE, BooleanField, CharField, DateField,
-                              ForeignKey, Model)
+from django.db.models import (CASCADE, BooleanField, CharField, DateField, ForeignKey, Model)
 from django.utils.translation import ugettext_lazy as _
 
 from computes.models import Compute
@@ -12,17 +11,16 @@ class Instance(Model):
     is_template = BooleanField(_('is template'), default=False)
     created = DateField(_('created'), auto_now_add=True)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
+
 class PermissionSet(Model):
     """
     Dummy model for holding set of permissions we need to be automatically added by Django
     """
     class Meta:
         default_permissions = ()
-        permissions = (
-            ('clone_instances', _('Can clone instances')),
-        )
+        permissions = (('clone_instances', _('Can clone instances')), )
 
         managed = False
diff --git a/logs/models.py b/logs/models.py
index df81ccc..8302030 100644
--- a/logs/models.py
+++ b/logs/models.py
@@ -1,11 +1,12 @@
 from django.db.models import Model, CharField, DateTimeField
 from django.utils.translation import ugettext_lazy as _
 
+
 class Logs(Model):
     user = CharField(_('user'), max_length=50)
     instance = CharField(_('instance'), max_length=50)
     message = CharField(_('message'), max_length=255)
     date = DateTimeField(_('date'), auto_now=True)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.instance