Run isort

src/oscar/apps/catalogue/product_attributes.py

-from django.utils.translation import ugettext_lazy as _
 from django.core.exceptions import ValidationError
+from django.utils.translation import ugettext_lazy as _
 
 
 class ProductAttributesContainer(object):

src/oscar/apps/catalogue/reviews/utils.py

 from django.conf import settings
+
 from oscar.core.loading import get_model
 
 

src/oscar/apps/checkout/mixins.py

 
 from django.contrib.sites.models import Site
 from django.contrib.sites.shortcuts import get_current_site
-from oscar.core.compat import user_is_authenticated
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.urlresolvers import NoReverseMatch, reverse
 from django.http import HttpResponseRedirect
 
+from oscar.core.compat import user_is_authenticated
 from oscar.core.loading import get_class, get_model
 
 OrderCreator = get_class('order.utils', 'OrderCreator')

src/oscar/apps/checkout/views.py

 from django import http
 from django.contrib import messages
 from django.contrib.auth import login
-from oscar.core.compat import user_is_authenticated
 from django.core.urlresolvers import reverse, reverse_lazy
 from django.shortcuts import redirect
 from django.utils import six
 from django.views import generic
 
 from oscar.apps.shipping.methods import NoShippingRequired
+from oscar.core.compat import user_is_authenticated
 from oscar.core.loading import get_class, get_classes, get_model
 
 from . import signals

src/oscar/apps/dashboard/app.py

+from django.conf.urls import url
 from django.contrib.auth import views as auth_views
 from django.contrib.auth.forms import AuthenticationForm
-from django.conf.urls import url
 
-from oscar.core.application import DashboardApplication as BaseDashboardApplication
+from oscar.core.application import (
+    DashboardApplication as BaseDashboardApplication)
 from oscar.core.loading import get_class
 
 

src/oscar/apps/dashboard/orders/views.py

 from django.contrib import messages
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.urlresolvers import reverse
-from django.db.models import Q, Count, Sum, fields
+from django.db.models import Count, Q, Sum, fields
 from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404, redirect
 from django.utils.translation import ugettext_lazy as _

src/oscar/core/application.py

 from django import VERSION as DJANGO_VERSION
-from django.core.urlresolvers import reverse_lazy, RegexURLPattern
+from django.core.urlresolvers import RegexURLPattern, reverse_lazy
 
 from oscar.core.loading import feature_hidden
 from oscar.views.decorators import permissions_required

src/oscar/profiling/middleware.py

 import cProfile
-import hotshot
-import hotshot.stats
 import pstats
 import sys
 import tempfile
 from cStringIO import StringIO
 
+import hotshot
+import hotshot.stats
+
 
 def profile_this(fn):
     def profiled_fn(*args, **kwargs):