message: Run TPUClusterResolver test on PY2 and PY3.
diff: @@ -149,6 +149,24 @@ tf_py_test(
  ],
  grpc_enabled = True,
  main = "tpu_cluster_resolver_test.py",
  + python_version = "PY3",
  +)
  +
  +tf_py_test(
  + name = "tpu_cluster_resolver_py2_test",
  + size = "small",
  + srcs = ["tpu_cluster_resolver_test.py"],
  + additional_deps = [
  + ":tpu_cluster_resolver_py",
  + "//tensorflow/python:client_testlib",
  + "//tensorflow/python:framework_for_generated_wrappers",
  + "//tensorflow/python:framework_test_lib",
  + "//tensorflow/python:platform_test",
  + "//tensorflow/python:training_server_lib",
  + ],
  + grpc_enabled = True,
  + main = "tpu_cluster_resolver_test.py",
  + python_version = "PY2",
  )
  tf_py_test(
  