Remove functions in string module that are also string methods.  Also remove:
 * all calls to functions in the string module (except maketrans)
 * everything from stropmodule except for maketrans() which is still used
diff --git a/Lib/idlelib/keybindingDialog.py b/Lib/idlelib/keybindingDialog.py
index 69900f9..16db557 100644
--- a/Lib/idlelib/keybindingDialog.py
+++ b/Lib/idlelib/keybindingDialog.py
@@ -163,7 +163,7 @@
         if finalKey:
             finalKey = self.TranslateKey(finalKey, modifiers)
             keyList.append(finalKey)
-        self.keyString.set('<' + string.join(keyList,'-') + '>')
+        self.keyString.set('<' + '-'.join(keyList) + '>')
 
     def GetModifiers(self):
         modList = [variable.get() for variable in self.modifier_vars]