bpo-38907: In http.server script, restore binding to IPv4 on Windows. (GH-17851)
diff --git a/Lib/http/server.py b/Lib/http/server.py
index 47a4fcf..b9a2717 100644
--- a/Lib/http/server.py
+++ b/Lib/http/server.py
@@ -1282,4 +1282,16 @@
else:
handler_class = partial(SimpleHTTPRequestHandler,
directory=args.directory)
- test(HandlerClass=handler_class, port=args.port, bind=args.bind)
+
+ # ensure dual-stack is not disabled; ref #38907
+ class DualStackServer(ThreadingHTTPServer):
+ def server_bind(self):
+ self.socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
+ return super().server_bind()
+
+ test(
+ HandlerClass=handler_class,
+ ServerClass=DualStackServer,
+ port=args.port,
+ bind=args.bind,
+ )