await mcp.client.stdio.stdio_client has no return with mcp 1.9.0

[ch-zgh-1993]

This is debug log, and use mcp 1.9.0, use Python SDK visit Nodejs MCP with StdioServerParameters。 Please tell me the reason? what i can do. Thank you !!

MCP-DEBUG] Starting stdout_reader...
[MCP-DEBUG] Starting to read from process stdout...
[MCP-DEBUG] Starting stdin_writer...
[MCP-DEBUG] Starting to write to process stdin...
[MCP-DEBUG] Writing message: SessionMessage(message=JSONRPCMessage(root=JSONRPCRequest(method='initialize', params={'protocolVersion': '2025-03-26', 'capabilities': {'sampling': {}, 'roots': {'listChanged': True}}, 'clientInfo': {'name': 'mcp', 'version': '0.1.0'}}, jsonrpc='2.0', id=0)), metadata=None)
[MCP-DEBUG] Sending to process: SessionMessage(message=JSONRPCMessage(root=JSONRPCRequest(method='initialize', params={'protocolVersion': '2025-03-26', 'capabilities': {'sampling': {}, 'roots': {'listChanged': True}}, 'clientInfo': {'name': 'mcp', 'version': '0.1.0'}}, jsonrpc='2.0', id=0)), metadata=None)
send_request1 None
[MCP-DEBUG] Received chunk: {"result":{"protocolVersion":"2025-03-26","capabilities":{"tools":{"listChanged":true}},"serverInfo":{"name":"MasterGoMcpServer","version":"0.0.1"}},"jsonrpc":"2.0","id":0}

[MCP-DEBUG] Received from process: {"result":{"protocolVersion":"2025-03-26","capabilities":{"tools":{"listChanged":true}},"serverInfo":{"name":"MasterGoMcpServer","version":"0.0.1"}},"jsonrpc":"2.0","id":0}

[MCP-DEBUG] Parsed message: root=JSONRPCResponse(jsonrpc='2.0', id=0, result={'protocolVersion': '2025-03-26', 'capabilities': {'tools': {'listChanged': True}}, 'serverInfo': {'name': 'MasterGoMcpServer', 'version': '0.0.1'}})
[MCP-DEBUG] Before send - read_stream_writer state: MemoryObjectStreamState(max_buffer_size=0, buffer=deque([]), open_send_channels=1, open_receive_channels=1, waiting_receivers=OrderedDict(), waiting_senders=OrderedDict())
[MCP-DEBUG] Before send - session_message: SessionMessage(message=JSONRPCMessage(root=JSONRPCResponse(jsonrpc='2.0', id=0, result={'protocolVersion': '2025-03-26', 'capabilities': {'tools': {'listChanged': True}}, 'serverInfo': {'name': 'MasterGoMcpServer', 'version': '0.0.1'}})), metadata=None)
[MCP-DEBUG] Attempting to send session message...
[MCP-DEBUG] Process state: <Process 94270>
[MCP-DEBUG] Process returncode: None