No module named 'mcp.client'; 'mcp' is not a package

[xiezongming]

Initial Checks

• I confirm that I'm using the latest version of MCP Python SDK
• I confirm that I searched for my issue in https://github.com/modelcontextprotocol/python-sdk/issues before opening this issue

Description

An error occurred when using UV to install MCP and import mcp.client.

Example Code

[project]
name = "qwen-agent-test2"
version = "0.1.0"
description = "Add your description here"
requires-python = ">=3.13"
dependencies = [
    "json5>=0.12.0",
#    "qwen-agent[rag,code_interpreter,gui,mcp]",
    "mcp"
]

[[tool.uv.index]]
url = "https://mirrors.cloud.tencent.com/pypi/simple/"
default = true


import mcp.client.stdio  error :
ModuleNotFoundError: No module named 'mcp.client'; 'mcp' is not a package

Python & MCP Python SDK

python 3.13
mcp sdk 1.9.4

[Kludex]

This is an issue on your side. Probably related to your private PyPI.