python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Lib/test/test_tk.py

@@ -0,0 +1,15 @@
+from test import support
+# Skip test if _tkinter wasn't built.
+support.import_module('_tkinter')
+
+# Skip test if tk cannot be initialized.
+support.requires('gui')
+
+from tkinter.test import runtktests
+
+def test_main():
+    support.run_unittest(
+            *runtktests.get_tests(text=False, packages=['test_tkinter']))
+
+if __name__ == '__main__':
+    test_main()