From 2ad43bfd3d5bfd09fd9fa6b8448138495daef219 Mon Sep 17 00:00:00 2001
From: Adam Cozzette <acozzette@google.com>
Date: Fri, 14 Aug 2020 08:57:23 -0700
Subject: [PATCH] Fixed tests for Python 2 in python/release.sh

Setuptools 45.0 removed support for Python 2, so to keep these tests
working for Python 2 I updated the script to install an older setuptools
version.
---
 python/release.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/python/release.sh b/python/release.sh
index 21745aad792f..6db87f0bb20e 100755
--- a/python/release.sh
+++ b/python/release.sh
@@ -11,7 +11,10 @@ function run_install_test() {
   local PYTHON=$2
   local PYPI=$3
 
-  virtualenv -p `which $PYTHON` test-venv
+  # Setuptools 45.0 removed support for Python 2, so to test with Python 2 we
+  # pass --no-setuptools here and then install an older setuptools version
+  # below.
+  virtualenv -p `which $PYTHON` --no-setuptools test-venv
 
   # Intentionally put a broken protoc in the path to make sure installation
   # doesn't require protoc installed.
@@ -19,6 +22,7 @@ function run_install_test() {
   chmod +x test-venv/bin/protoc
 
   source test-venv/bin/activate
+  pip install "setuptools<45"
   pip install -i ${PYPI} protobuf==${VERSION} --no-cache-dir
   deactivate
   rm -fr test-venv