Index: Lib/lib-tk/Tkinter.py
===================================================================
--- Lib/lib-tk/Tkinter.py	(revision 63916)
+++ Lib/lib-tk/Tkinter.py	(working copy)
@@ -1065,7 +1065,10 @@
                             nv.append(('{%s}' if ' ' in item else '%s') % item)
                     else:
                         v = ' '.join(nv)
-                res = res + ('-'+k, v)
+
+                if k[0] != '-':
+                    k = '-' + k
+                res = res + (k, v)
         return res
     def nametowidget(self, name):
         """Return the Tkinter instance of a widget identified by
@@ -1433,7 +1436,7 @@
                      maxNumer, maxDenom))
     aspect = wm_aspect
 
-    def wm_attributes(self, *args):
+    def wm_attributes(self, *args, **kwargs):
         """This subcommand returns or sets platform specific attributes
 
         The first form returns a list of the platform specific flags and
@@ -1451,8 +1454,11 @@
 
         On Unix, there are currently no special attribute values.
         """
-        args = ('wm', 'attributes', self._w) + args
-        return self.tk.call(args)
+        d = ((arg, args[indx * 2 + 1]) for indx, arg in enumerate(args[::2]))
+        kwargs.update(dict(d))
+        opts = self._options(kwargs)
+
+        return self.tk.call('wm', 'attributes', self._w, *opts)
     attributes=wm_attributes
 
     def wm_client(self, name=None):