diff --git a/src/Model/Tools/PamhyrDict.py b/src/Model/Tools/PamhyrDict.py
index aa2d3be3..f1652516 100644
--- a/src/Model/Tools/PamhyrDict.py
+++ b/src/Model/Tools/PamhyrDict.py
@@ -22,6 +22,7 @@ from copy import copy
 from tools import trace, timer
 
 from Model.Tools.PamhyrDB import SQLSubModel
+from Model.Except import NotImplementedMethodeError
 
 logger = logging.getLogger()
 
diff --git a/src/Model/Tools/PamhyrList.py b/src/Model/Tools/PamhyrList.py
index 4129a7d8..6938343f 100644
--- a/src/Model/Tools/PamhyrList.py
+++ b/src/Model/Tools/PamhyrList.py
@@ -22,6 +22,7 @@ from copy import copy
 from tools import trace, timer
 
 from Model.Tools.PamhyrDB import SQLSubModel
+from Model.Except import NotImplementedMethodeError
 
 logger = logging.getLogger()