diff --git a/kadmos/cmdows/cmdows.py b/kadmos/cmdows/cmdows.py
index d06baccd25266a79f13a359822f528c89193eafb..6669e1b4d4563cfd4ac7944d777edd1223daa30a 100644
--- a/kadmos/cmdows/cmdows.py
+++ b/kadmos/cmdows/cmdows.py
@@ -378,9 +378,9 @@ class CMDOWS(object):
 
     def add_dc_general_info(self, dc_uid, description, dc_instance, status=None, creation_date=None, owner_uid=None, creator_uid=None,
                             operator_uid=None, model_definition=None):
-    """Method to add a general info element to a dc branch."""
+        """Method to add a general info element to a dc branch."""
         # if instance is higher than 1 the metadata should not be added.
-            # Assert that there is a DC element
+        # Assert that there is a DC element
         xpath = self.get_xpath_of_uid(dc_uid, expected_tag='designCompetence')
 
         # Assert that the contact_uids exist
diff --git a/kadmos/graph/graph_data.py b/kadmos/graph/graph_data.py
index 8113d217b744e5ce6ccf22d9773e19aa073fb37b..7df5476a9032d06abd5ef01e470f08fc38ce83c8 100644
--- a/kadmos/graph/graph_data.py
+++ b/kadmos/graph/graph_data.py
@@ -322,18 +322,18 @@ class DataGraph(KadmosGraph):
         assert isinstance(reference_value, (numbers.Number, list)), 'Reference value is not a number or list.'
 
         #check if multiple bounds are used correctly.
-         if isinstance(operator, list):
-             if (operators[operator[0]](0,1) and operators[operator[1]](1,0)) or ((operators[operator[0]](1,0) and operators[operator[1]](0,1))):
-                 a = reference_value[0]
-                 b = reference_value[1]
-                 if operators[operator[1]](a,b) and operators[operator[0]](b,a):
-                     pass
-                 else:
-                     print("ERROR: x {} {} and x {} {} are not consistent as "
+        if isinstance(operator, list):
+            if (operators[operator[0]](0,1) and operators[operator[1]](1,0)) or ((operators[operator[0]](1,0) and operators[operator[1]](0,1))):
+                a = reference_value[0]
+                b = reference_value[1]
+                if operators[operator[1]](a,b) and operators[operator[0]](b,a):
+                    pass
+                else:
+                    print("ERROR: x {} {} and x {} {} are not consistent as "
                            "bounds".format(operator[0],reference_value[0],operator[1],reference_value[1]))
-             else:
-                 print("ERROR: the combination of {} and {} as bounds is not logical. "
-                       "Please correct the operators provided".format(operator[0],operator[1]))
+            else:
+                print("ERROR: the combination of {} and {} as bounds is not logical. "
+                      "Please correct the operators provided".format(operator[0],operator[1]))
 
         # Mark nodes
         self.node[node]['problem_role'] = self.PROBLEM_ROLES_VARS[2]