Fix authtoken views imports

Author: Ryan P Kilby

rest_framework/authtoken/views.py

@@ -1,11 +1,11 @@
+import coreapi
+import coreschema
 from rest_framework import parsers, renderers
 from rest_framework.authtoken.models import Token
 from rest_framework.authtoken.serializers import AuthTokenSerializer
 from rest_framework.response import Response
-from rest_framework.views import APIView
 from rest_framework.schemas import ManualSchema
-import coreapi
-import coreschema
+from rest_framework.views import APIView
 
 
 class ObtainAuthToken(APIView):