do not connect to all interfaces

Author: woutdenolf

tests/test_connect.py

@@ -101,7 +101,7 @@ def _assert_connect(conn, server_address, **server_kwargs):
 @pytest.fixture
 def tcp_address():
     with socket.socket() as sock:
-        sock.bind(("", 0))
+        sock.bind(("127.0.0.1", 0))
         return sock.getsockname()