From 18054754c5d85213bba6f8c77bb3587bcc1b7dc4 Mon Sep 17 00:00:00 2001
From: Lidi Zheng <lidiz@google.com>
Date: Mon, 15 Jun 2020 14:19:54 -0700
Subject: [PATCH] Install rsa==4.0 to avoid the egg cache race issue

---
 tools/run_tests/helper_scripts/build_python.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/run_tests/helper_scripts/build_python.sh b/tools/run_tests/helper_scripts/build_python.sh
index 25efd7170ee..60031fa6e95 100755
--- a/tools/run_tests/helper_scripts/build_python.sh
+++ b/tools/run_tests/helper_scripts/build_python.sh
@@ -225,7 +225,7 @@ pip_install_dir "$ROOT/src/python/grpcio_testing"
 # Build/install tests
 pip_install coverage==4.4 oauth2client==4.1.0 \
             google-auth>=1.17.2 requests==2.14.2 \
-            googleapis-common-protos>=1.5.5
+            googleapis-common-protos>=1.5.5 rsa==4.0
 $VENV_PYTHON "$ROOT/src/python/grpcio_tests/setup.py" preprocess
 $VENV_PYTHON "$ROOT/src/python/grpcio_tests/setup.py" build_package_protos
 pip_install_dir "$ROOT/src/python/grpcio_tests"