python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Lib/test/test_unittest.py

@@ -0,0 +1,16 @@
+import unittest.test
+
+from test import support
+
+
+def test_main():
+    # used by regrtest
+    support.run_unittest(unittest.test.suite())
+    support.reap_children()
+
+def load_tests(*_):
+    # used by unittest
+    return unittest.test.suite()
+
+if __name__ == "__main__":
+    test_main()