--- a/QScintilla/Shell.py	Thu Sep 01 18:28:27 2016 +0200
+++ b/QScintilla/Shell.py	Fri Sep 02 19:08:02 2016 +0200
@@ -680,7 +680,7 @@
         self .__clientError()
         
         if Preferences.getDebugger("ShowExceptionInShell"):
-            if exceptionType is not None:
+            if exceptionType:
                 if stackTrace:
                     self.__write(
                         self.tr('Exception "{0}"\n{1}\nFile: {2}, Line: {3}\n')