Paginator der besser ins Design passt.

membership/models.py

@@ -1,7 +1,10 @@
 # -*- encoding: utf-8 -*-
 
-from . import PAID_MEMBERSHIP_GROUP
 from datetime import timedelta
+from os import path
+import random
+import hashlib
+
 from django.utils import timezone
 from django.conf import settings
 from django.contrib.auth import get_user_model
@@ -10,10 +13,10 @@ from django.db import models
 from django.utils.translation import ugettext as _
 from imagekit.models import ImageSpecField
 from imagekit.processors import SmartResize
-from os import path
+
+from . import PAID_MEMBERSHIP_GROUP
 from utils import OverwriteStorage
-import random
-import hashlib
+
 
 GENDER_CHOICES = (
     ('m', _('Male')),
@@ -150,7 +153,8 @@ class MembershipManager(models.Manager):
             if user:
                 return super(MembershipManager, self).get(user=user)
             elif username:
-                return super(MembershipManager, self).get(user__username=username)
+                return super(MembershipManager, self).get(
+                    user__username=username)
         except Membership.DoesNotExist:
             if username:
                 user = get_user_model().objects.get(username=username)