diff -Naur grpc-1.53.2.orig/src/python/grpcio_tests/tests/unit/_dns_resolver_test.py grpc-1.53.2/src/python/grpcio_tests/tests/unit/_dns_resolver_test.py
--- grpc-1.53.2.orig/src/python/grpcio_tests/tests/unit/_dns_resolver_test.py	2023-09-04 20:19:32.818460907 +0800
+++ grpc-1.53.2/src/python/grpcio_tests/tests/unit/_dns_resolver_test.py	2023-09-04 20:19:40.600460347 +0800
@@ -15,6 +15,7 @@
 
 import logging
 import unittest
+import os
 
 import grpc
 
@@ -45,6 +46,8 @@
     def tearDown(self):
         self._server.stop(None)
 
+    @unittest.skipIf('NO_NETWORK_TESTS' in os.environ,
+                     'Network tests disabled')
     def test_connect_loopback(self):
         # NOTE(https://github.com/grpc/grpc/issues/18422)
         # In short, Gevent + C-Ares = Segfault. The C-Ares driver is not