protobuf.patch

diff --git a/BUILD b/BUILD
index 1690d4219..8a7f1bf14 100644
--- a/BUILD
+++ b/BUILD
@@ -19,7 +19,7 @@ exports_files(["LICENSE"])
 # ZLIB configuration
 ################################################################################
 
-ZLIB_DEPS = ["@zlib//:zlib"]
+ZLIB_DEPS = ["//external:zlib"]
 
 ################################################################################
 # Protobuf Runtime Library
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index 9319c67f1..d85d53d4a 100644
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -31,3 +31,9 @@
 # Copyright 2007 Google Inc. All Rights Reserved.
 
 __version__ = '3.19.4'
+
+if __name__ != '__main__':
+  try:
+    __import__('pkg_resources').declare_namespace(__name__)
+  except ImportError:
+    __path__ = __import__('pkgutil').extend_path(__path__, __name__)