MCP Server Test H98

🚀 MCP 服务器测试

本项目主要围绕 MCP 服务器测试展开，在按照官方指南使用 uv 构建环境时，选择改用 pyenv 进行环境搭建，并解决了运行过程中遇到的找不到 python 命令的问题。

🚀 快速开始

按照官方指南使用 uv 构建环境，但想改用 pyenv。 参考链接：MCP 快速入门指南

📦 安装指南

环境搭建步骤

1. 安装 Python 3.10 或更高版本
   按照要求，先安装 Python 3.11.5。
2. 设置为全局版本
   使用 pyenv 将 Python 3.11.5 设置为默认版本。

📚 详细文档

MCP 配置

根据官方示例，MCP 的配置文件如下：

{
    "mcpServers": {
        "weather": {
            "command": "python",
            "args": [
                "MY-PATH/mcp-server-test/src/main.py"
            ]
        }
    }
}

问题与解决

运行时出现以下错误：

2025-04-15T14:13:02.862Z [weather] [info] Initializing server...

2025-04-15T14:13:02.891Z [weather] [error] spawn python ENOENT {"context":"connection","stack":"Error: spawn python ENOENT\n  at ChildProcess._handle.onexit (node:internal/child_process:285:19)\n  at onErrorNT (node:internal/child_process:483:16)\n  at process.processTicksAndRejections (node:internal/process/task_queues:82:21)"}

2025-04-15T14:13:02.891Z [weather] [error] spawn python ENOENT {"stack":"Error: spawn python ENOENT\n  at ChildProcess._handle.onexit (node:internal/child_process:285:19)\n  at onErrorNT (node:internal/child_process:483:16)\n  at process.processTicksAndRejections (node:internal/process/task_queues:82:21)"}

2025-04-15T14:13:02.896Z [weather] [info] Server transport closed

2025-04-15T14:13:02.896Z [weather] [info] Client transport closed

2025-04-15T14:13:02.896Z [weather] [info] Server transport closed unexpectedly, this is likely due to the process exiting early. If you are developing this MCP server you can add output to stderr (i.e. `console.error('...')` in JavaScript, `print('...', file=sys.stderr)` in python) and it will appear in this log.

2025-04-15T14:13:02.896Z [weather] [error] Server disconnected. For troubleshooting guidance, please visit our [debugging documentation](https://modelcontextprotocol.io/docs/tools/debugging) {"context":"connection"}

错误提示：找不到 python 命令。

解决方案

检查 Python 的安装路径：

$ which python
MY-PATH/.pyenv/shims/python

修改 MCP 配置文件，指定完整的 Python 路径：

{
    "mcpServers": {
        "weather": {
            "command": "MY-PATH/.pyenv/shims/python",
            "args": [
                "MY-PATH/mcp-server-test/src/main.py"
            ]
        }
    }
}

📋 总结

通过指定完整的 Python 可执行文件路径，解决了找不到 python 命令的问题。