Index: Lib/lib-tk/Dialog.py
===================================================================
--- Lib/lib-tk/Dialog.py	(revision 63734)
+++ Lib/lib-tk/Dialog.py	(working copy)
@@ -14,12 +14,16 @@
         cnf = _cnfmerge((cnf, kw))
         self.widgetName = '__dialog__'
         Widget._setup(self, master, cnf)
-        self.num = self.tk.getint(
-                self.tk.call(
-                      'tk_dialog', self._w,
-                      cnf['title'], cnf['text'],
-                      cnf['bitmap'], cnf['default'],
-                      *cnf['strings']))
+        self.num = self.tk.call('tk_dialog', self._w, cnf['title'],
+                                cnf['text'], cnf['bitmap'], cnf['default'],
+                                *cnf['strings'])
+        try:
+            self.num = int(self.num)
+        except TypeError:
+            # XXX for some reason we got a cached literal from Tk interpreter.
+            #     issue 1447222
+            self.num = int(str(self.num[0]))
+
         try: Widget.destroy(self)
         except TclError: pass
     def destroy(self): pass