Be extra careful

Author: 1st1

asyncio/selector_events.py

@@ -42,7 +42,8 @@ def _test_selector_event(selector, fd, event):
 if hasattr(socket, 'TCP_NODELAY'):
     def _set_nodelay(sock):
         if (sock.family in {socket.AF_INET, socket.AF_INET6} and
-                sock.type == socket.SOCK_STREAM):
+                sock.type == socket.SOCK_STREAM and
+                sock.proto == socket.IPPROTO_TCP):
             sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
 else:
     def _set_nodelay(sock):