Import and PEP8 cleanups

apps/document_indexing/__init__.py

@@ -2,18 +2,15 @@ from __future__ import absolute_import
 
 import logging
 
-from django.db.models.signals import pre_save, post_save, pre_delete
 from django.dispatch import receiver
 from django.utils.translation import ugettext_lazy as _
-from django.dispatch import receiver
 from django.db.models.signals import post_save, pre_delete, post_delete
 
 from navigation.api import (register_top_menu, register_sidebar_template,
     bind_links, Link)
 
 from main.api import register_maintenance_links
-from documents.models import Document, DocumentVersion
-from documents.permissions import PERMISSION_DOCUMENT_VIEW
+from documents.models import Document
 from metadata.models import DocumentMetadata
 from project_setup.api import register_setup
 
@@ -22,14 +19,7 @@ from .api import update_indexes, delete_indexes
 from .links import (index_setup, index_setup_list, index_setup_create,
     index_setup_edit, index_setup_delete, index_setup_view,
     template_node_create, template_node_edit, template_node_delete,
-    index_list, index_parent, document_index_list, rebuild_index_instances)
-from .permissions import (PERMISSION_DOCUMENT_INDEXING_VIEW,
-    PERMISSION_DOCUMENT_INDEXING_REBUILD_INDEXES,
-    PERMISSION_DOCUMENT_INDEXING_SETUP,
-    PERMISSION_DOCUMENT_INDEXING_CREATE,
-    PERMISSION_DOCUMENT_INDEXING_EDIT,
-    PERMISSION_DOCUMENT_INDEXING_DELETE
-)
+    index_parent, document_index_list, rebuild_index_instances)
 
 logger = logging.getLogger(__name__)
 
@@ -70,7 +60,7 @@ def document_metadata_index_update(sender, **kwargs):
 def document_metadata_index_delete(sender, **kwargs):
     # TODO: save result in index log
     delete_indexes(kwargs['instance'].document)
-    
+
 
 @receiver(post_delete, dispatch_uid='document_metadata_index_post_delete', sender=DocumentMetadata)
 def document_metadata_index_post_delete(sender, **kwargs):