Update name of Python negative interop test
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index e18ca77..53df334 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -406,7 +406,7 @@
def client_cmd_http2interop(self, args):
return [ 'py27/bin/python',
- 'src/python/grpcio_tests/tests/http2/_negative_http2_client.py',
+ 'src/python/grpcio_tests/tests/http2/negative_http2_client.py',
] + args
def cloud_to_prod_env(self):