diff --git a/kallithea/model/db.py b/kallithea/model/db.py
--- a/kallithea/model/db.py
+++ b/kallithea/model/db.py
@@ -46,8 +46,7 @@ from webob.exc import HTTPNotFound
 import kallithea
 from kallithea.lib import ext_json, ssh
 from kallithea.lib.exceptions import DefaultUserException
-from kallithea.lib.utils2 import (asbool, ascii_bytes, aslist, get_changeset_safe, get_clone_url, remove_prefix, safe_bytes, safe_int, safe_str,
-                                  urlreadable)
+from kallithea.lib.utils2 import asbool, ascii_bytes, aslist, get_changeset_safe, get_clone_url, remove_prefix, safe_bytes, safe_int, safe_str, urlreadable
 from kallithea.lib.vcs import get_backend
 from kallithea.lib.vcs.backends.base import EmptyChangeset
 from kallithea.lib.vcs.utils.helpers import get_scm