message: Explicitly mark Python binaries/tests with python_version = "PY2".
diff: @@ -192,6 +192,7 @@ py_library(
  py_test(
  name = "profiler_client_test",
  srcs = ["profiler_client_test.py"],
  + python_version = "PY2",
  srcs_version = "PY2AND3",
  tags = ["no_pip"],
  visibility = ["//tensorflow:internal"],
  