diff -r 46af5ff86580 Lib/idlelib/Bindings.py
--- a/Lib/idlelib/Bindings.py	Thu Jul 24 14:25:56 2014 -0700
+++ b/Lib/idlelib/Bindings.py	Thu Jul 24 18:20:09 2014 -0700
@@ -8,6 +8,8 @@
 windows.
 
 """
+import imp
+
 from idlelib.configHandler import idleConf
 
 #   Warning: menudefs is altered in macosxSupport.overrideRootMenu()
@@ -86,4 +88,10 @@
    ]),
 ]
 
+try:
+   imp.find_module('turtledemo')
+   menudefs[-1][1].append(('Turtle Demo', '<<open-turtle-demo>>'))
+except ImportError:
+   pass
+
 default_keydefs = idleConf.GetCurrentKeySet()
diff -r 46af5ff86580 Lib/idlelib/EditorWindow.py
--- a/Lib/idlelib/EditorWindow.py	Thu Jul 24 14:25:56 2014 -0700
+++ b/Lib/idlelib/EditorWindow.py	Thu Jul 24 18:20:09 2014 -0700
@@ -222,6 +222,7 @@
             text.bind("<<close-all-windows>>", self.flist.close_all_callback)
             text.bind("<<open-class-browser>>", self.open_class_browser)
             text.bind("<<open-path-browser>>", self.open_path_browser)
+            text.bind("<<open-turtle-demo>>", self.open_turtle_demo)
 
         self.set_status_bar()
         vbar['command'] = text.yview
@@ -705,6 +706,12 @@
         from idlelib import PathBrowser
         PathBrowser.PathBrowser(self.flist)
 
+    def open_turtle_demo(self, event = None):
+        import subprocess
+
+        cmd = "./python.exe -c 'from turtledemo.__main__ import main; main()'"
+        p = subprocess.Popen(cmd, shell=True)
+
     def gotoline(self, lineno):
         if lineno is not None and lineno > 0:
             self.text.mark_set("insert", "%d.0" % lineno)
@@ -713,7 +720,7 @@
             self.center()
 
     def ispythonsource(self, filename):
-        if not filename or os.path.isdir(filename):
+        if not filename or os.path.isdir(filename): 
             return True
         base, ext = os.path.splitext(os.path.basename(filename))
         if os.path.normcase(ext) in (".py", ".pyw"):