--- a/eric6/Preferences/__init__.py	Thu Aug 15 17:04:54 2019 +0200
+++ b/eric6/Preferences/__init__.py	Thu Aug 15 17:19:28 2019 +0200
@@ -3831,7 +3831,7 @@
             "MicroPython/" + key,
             prefClass.microPythonDefaults[key]))
     elif key in ["ReplLineWrap", "SyncTimeAfterConnect", "ShowHiddenLocal",
-                 "ShowHiddenDevice",]:
+                 "ShowHiddenDevice"]:
         return toBool(prefClass.settings.value(
             "MicroPython/" + key,
             prefClass.microPythonDefaults[key]))