--- a/eric6_unittest.py	Wed Jun 20 18:34:44 2018 +0200
+++ b/eric6_unittest.py	Wed Jun 20 18:45:07 2018 +0200
@@ -43,6 +43,10 @@
 
 from Toolbox import Startup
 
+# make Third-Party package available as a packages repository
+sys.path.insert(2, os.path.join(os.path.dirname(__file__),
+                                "ThirdParty", "EditorConfig"))
+
 
 def createMainWidget(argv):
     """