Update WORKSPACE

WORKSPACE

@@ -20,6 +20,29 @@ http_archive(
     ],
 )
 
+http_archive(
+    name = "rules_python",
+    sha256 = "84aec9e21cc56fbc7f1335035a71c850d1b9b5cc6ff497306f84cced9a769841",
+    strip_prefix = "rules_python-0.23.1",
+    url = "https://github.com/bazelbuild/rules_python/releases/download/0.23.1/rules_python-0.23.1.tar.gz",
+)
+
+load("@rules_python//python:repositories.bzl", "python_register_toolchains")
+load(
+    "@org_tensorflow//tensorflow/tools/toolchains/python:python_repo.bzl",
+    "python_repository",
+)
+
+python_repository(name = "python_version_repo")
+
+load("@python_version_repo//:py_version.bzl", "HERMETIC_PYTHON_VERSION")
+
+python_register_toolchains(
+    name = "python",
+    ignore_root_user_error = True,
+    python_version = HERMETIC_PYTHON_VERSION,
+)
+
 load("@org_tensorflow//tensorflow:workspace3.bzl", "tf_workspace3")
 
 tf_workspace3()