diff -uNr a/bundled/google-cloud-sdk/bin/gcloud b/bundled/google-cloud-sdk/bin/gcloud
--- a/bundled/google-cloud-sdk/bin/gcloud	2018-06-18 14:30:10.000000000 +0200
+++ b/bundled/google-cloud-sdk/bin/gcloud	2018-06-25 13:12:56.057000620 +0200
@@ -64,6 +64,8 @@
 }
 CLOUDSDK_ROOT_DIR=$(_cloudsdk_root_dir "$0")
 
+CLOUDSDK_PYTHON_SITEPACKAGES=1
+
 # if CLOUDSDK_PYTHON is empty
 if [ -z "$CLOUDSDK_PYTHON" ]; then
   # if python2 exists then plain python may point to a version != 2