diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 4a68b198dc2..6bbd45678ac 100755
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -1547,7 +1547,7 @@ def main():
     root.withdraw()
     flist = PyShellFileList(root)
     macosxSupport.setupApp(root, flist)
-    
+
     if macosxSupport.isAquaTk():
         # There are some screwed up <2> class bindings for text
         # widgets defined in Tk which we need to do away with.