--- a/eric6/Graphics/ImportsDiagramBuilder.py	Mon Jun 22 17:55:06 2020 +0200
+++ b/eric6/Graphics/ImportsDiagramBuilder.py	Tue Jun 23 17:24:18 2020 +0200
@@ -79,13 +79,11 @@
         """
         import Utilities.ModuleParser
         extensions = (
-            Preferences.getPython("PythonExtensions") +
             Preferences.getPython("Python3Extensions")
         )
         moduleDict = {}
         modules = []
         for ext in (
-            Preferences.getPython("PythonExtensions") +
             Preferences.getPython("Python3Extensions")
         ):
             modules.extend(glob.glob(Utilities.normjoinpath(