diff --git a/src/caosadvancedtools/cfood.py b/src/caosadvancedtools/cfood.py
index b61982c64a00f6cdf087d343491606c1c1c8c5a4..c4c4e121b68dec51921e964c4927288a8b1bf2a5 100644
--- a/src/caosadvancedtools/cfood.py
+++ b/src/caosadvancedtools/cfood.py
@@ -41,11 +41,11 @@ import logging
 import re
 import warnings
 from abc import ABCMeta, abstractmethod
+from datetime import datetime
 
 import caosdb as db
 from caosdb.exceptions import AmbiguityException, EntityDoesNotExistError
 
-from datetime import datetime
 from .datamodel_problems import DataModelProblems
 from .guard import global_guard as guard
 
@@ -412,6 +412,8 @@ def assure_object_is_in_list(obj, containing_object, property_name,
         to_be_updated.append(containing_object)
 
 
+# TOOD rename to is
+# switch arugments and check for old sequence
 def assure_has_description(entity, description, to_be_updated=None,
                            force=False):
     """
@@ -589,6 +591,7 @@ def assure_has_property(entity, name, value, to_be_updated=None,
 
         # cover special case of datetimes that are returned as strings
         # by pylib.
+
         if isinstance(value, datetime):
 
             if datetime.fromisoformat(el.value) == value: