organize imports

tracim/lib/core/content.py

 # -*- coding: utf-8 -*-
 from contextlib import contextmanager
-
 import os
-
-from operator import itemgetter, not_
-
-import transaction
-from sqlalchemy import func
-from sqlalchemy.orm import Query
-
-from tracim.models.context_models import ContentInContext
-
-__author__ = 'damien'
-
 import datetime
 import re
 import typing
+from operator import itemgetter
+from operator import not_
 
-from tracim.lib.utils.translation import fake_translator as _
-
+import transaction
+from sqlalchemy import func
+from sqlalchemy.orm import Query
 from depot.manager import DepotManager
 from depot.io.utils import FileIntent
-
 import sqlalchemy
 from sqlalchemy.orm import aliased
 from sqlalchemy.orm import joinedload
 from sqlalchemy import distinct
 from sqlalchemy import or_
 from sqlalchemy.sql.elements import and_
+
 from tracim.lib.utils.utils import cmp_to_key
 from tracim.lib.core.notifications import NotifierFactory
 from tracim.exceptions import SameValueError
 from tracim.models.data import RevisionReadStatus
 from tracim.models.data import UserRoleInWorkspace
 from tracim.models.data import Workspace
+from tracim.lib.utils.translation import fake_translator as _
+from tracim.models.context_models import ContentInContext
+
+
+__author__ = 'damien'
 
 
 def compare_content_for_sorting_by_type_and_name(