diff -r d0ff55a6b02f Lib/idlelib/ScrolledList.py
--- a/Lib/idlelib/ScrolledList.py	Fri Aug 28 16:56:45 2015 -0400
+++ b/Lib/idlelib/ScrolledList.py	Wed Sep 02 16:08:04 2015 -0700
@@ -1,4 +1,5 @@
 from tkinter import *
+from idlelib import macosxSupport
 
 class ScrolledList:
 
@@ -22,7 +23,11 @@
         # Bind events to the list box
         listbox.bind("<ButtonRelease-1>", self.click_event)
         listbox.bind("<Double-ButtonRelease-1>", self.double_click_event)
-        listbox.bind("<ButtonPress-3>", self.popup_event)
+        if macosxSupport.isAquaTk():
+            listbox.bind("<ButtonPress-2>", self.popup_event)
+            listbox.bind("<Control-Button-1>", self.popup_event)
+        else:
+            listbox.bind("<ButtonPress-3>", self.popup_event)
         listbox.bind("<Key-Up>", self.up_event)
         listbox.bind("<Key-Down>", self.down_event)
         # Mark as empty