Bazel: rules_python must be loaded now

Bug: Issue 11692
Change-Id: I41573a19cb825de48f75e59790994754d50deb64

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 863fce2..fff66b9 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,6 +3,13 @@
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
+    name = "rules_python",
+    sha256 = "e5470e92a18aa51830db99a4d9c492cc613761d5bdb7131c04bd92b9834380f6",
+    strip_prefix = "rules_python-4b84ad270387a7c439ebdccfd530e2339601ef27",
+    urls = ["https://github.com/bazelbuild/rules_python/archive/4b84ad270387a7c439ebdccfd530e2339601ef27.tar.gz"],
+)
+
+http_archive(
     name = "bazel_skylib",
     sha256 = "bbccf674aa441c266df9894182d80de104cabd19be98be002f6d478aaa31574d",
     strip_prefix = "bazel-skylib-2169ae1c374aab4a09aa90e65efe1a3aad4e279b",