This patch improves the L&F of IDLE on OSX. The changes are conditionalized on

being in an IDLE.app bundle on darwin. This does a slight reorganisation of the
menus and adds support for file-open events.

Lib/idlelib/ZoomHeight.py

@@ -2,6 +2,7 @@
 
 import re
 import sys
+import macosxSupport
 
 class ZoomHeight:
 
@@ -29,6 +30,14 @@ def zoom_height(top):
     if sys.platform == 'win32':
         newy = 0
         newheight = newheight - 72
+
+    elif macosxSupport.runningAsOSXApp():
+        # The '88' below is a magic number that avoids placing the bottom
+        # of the window below the panel on my machine. I don't know how
+        # to calculate the correct value for this with tkinter.
+        newy = 22
+        newheight = newheight - newy - 88
+
     else:
         #newy = 24
         newy = 0