Keep __main__ namespace clean
diff --git a/Lib/idlelib/macosx_main.py b/Lib/idlelib/macosx_main.py
index c518094..8fdeeb1 100644
--- a/Lib/idlelib/macosx_main.py
+++ b/Lib/idlelib/macosx_main.py
@@ -35,7 +35,7 @@
# this module will become the namespace used by the interactive
# interpreter; remove all variables we have defined.
- del sys, __file__, split, join, isdir
+ del sys, __file__, split, join, isdir, idlelib
__import__('run').main()
else:
# Load idlelib/idle.py which starts the application.