Fix isort and pep8 issues

cms_helper.py

@@ -11,7 +11,6 @@ def gettext(s):
     return s
 
 
-
 HELPER_SETTINGS = dict(
     ROOT_URLCONF='tests.test_utils.urls',
     INSTALLED_APPS=[

djangocms_blog/admin.py

@@ -10,15 +10,13 @@ from django import forms
 from django.apps import apps
 from django.conf import settings
 from django.conf.urls import url
-from django.contrib import admin
+from django.contrib import admin, messages
-from django.contrib import messages
 from django.contrib.sites.models import Site
 from django.core.urlresolvers import reverse
 from django.http import HttpResponseRedirect
 from django.utils import timezone
 from django.utils.six import callable, text_type
-from django.utils.translation import get_language_from_request, ugettext_lazy as _
+from django.utils.translation import get_language_from_request, ugettext_lazy as _, ungettext as __
-from django.utils.translation import ungettext as __
 
 from parler.admin import TranslatableAdmin