Eliminated the need to use ttk.__loadtk__ and the problems related it.
diff --git a/Lib/test/test_tcl.py b/Lib/test/test_tcl.py
index 7690fe1..26e294c 100644
--- a/Lib/test/test_tcl.py
+++ b/Lib/test/test_tcl.py
@@ -4,15 +4,9 @@
import os
import _tkinter
from test import test_support
-from Tkinter import Tk, Tcl
+from Tkinter import Tcl
from _tkinter import TclError
-# Restore Tkinter.Tk._loadtk that may have been overridden by ttk.
-# If this is not done then this test may fail for reasons related
-# to ttk only (like failing to load the tile package).
-from ttk import __loadtk__
-Tk._loadtk = __loadtk__
-
class TkinterTest(unittest.TestCase):