diff --git a/src/View/Plot/APlot.py b/src/View/Plot/APlot.py
index cd9988cf..a863f1e6 100644
--- a/src/View/Plot/APlot.py
+++ b/src/View/Plot/APlot.py
@@ -16,6 +16,8 @@
 
 # -*- coding: utf-8 -*-
 
+from Model.Except import NotImplementedMethodeError
+
 class APlot(object):
     def __init__(self, canvas=None, data=None, toolbar=None):
         super(APlot, self).__init__()