Migrate tests from Python 3.4 to Python 3.7

2 files changed, 8 insertions, 3 deletions

diff --git a/tools/run_tests/helper_scripts/build_python.sh b/tools/run_tests/helper_scripts/build_python.sh
index 6990244e51..bb7fd040ab 100755
--- a/tools/run_tests/helper_scripts/build_python.sh
+++ b/tools/run_tests/helper_scripts/build_python.sh
@@ -149,10 +149,13 @@ pip_install_dir() {
 }
 
 case "$VENV" in
-  *gevent*)
+  *py35_gevent*)
   # TODO(https://github.com/grpc/grpc/issues/15411) unpin this
   $VENV_PYTHON -m pip install gevent==1.3.b1
   ;;
+  *gevent*)
+  $VENV_PYTHON -m pip install -U gevent
+  ;;
 esac
 
 $VENV_PYTHON -m pip install --upgrade pip==10.0.1
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 44151f49fb..9ea0ce13f4 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -765,8 +765,10 @@ class PythonLanguage(object):
             return 'stretch_' + self.args.compiler[len('python'):]
         elif self.args.compiler == 'python_alpine':
             return 'alpine'
-        else:
+        elif self.args.compiler == 'python3.4':
             return 'jessie'
+        else:
+            return 'stretch_3.7'
 
     def _get_pythons(self, args):
         if args.arch == 'x86':
@@ -844,7 +846,7 @@ class PythonLanguage(object):
             else:
                 return (
                     python27_config,
-                    python34_config,
+                    python37_config,
                 )
         elif args.compiler == 'python2.7':
             return (python27_config,)