# pkg_resources.extern.packaging.requirements.InvalidRequirement: 无效的环境标记：python_version >= '3.7' and

- **ID:** `python/setuptools-invalid-environment-marker`
- **领域:** python
- **类别:** config_error
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

包的元数据包含格式错误的环境标记，通常是由于 'and' 或 'or' 后缺少操作数。这可能发生在手动编辑 setup.py 或打包工具存在 bug 时。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 3.7 | active | — | — |
| 3.8 | active | — | — |
| 3.9 | active | — | — |
| 3.10 | active | — | — |

## 解决方案

1. **** (70% 成功率)
   ```
   Contact the package maintainer to fix the metadata. As a temporary workaround, install with --no-deps and manually install dependencies.
   ```
2. **** (90% 成功率)
   ```
   If you control the package, correct the environment marker in setup.py (e.g., ensure it ends with a valid expression) and rebuild.
   ```

## 无效尝试

- **** — The malformed marker prevents proper dependency resolution; force install may skip dependencies. (80% 失败率)
- **** — The issue is in the package's metadata, not the packaging library. (85% 失败率)