python module_error ai_generated true

ImportError:pip install --target ./lib requests 后找不到名为 'requests' 的模块

ImportError: No module named 'requests' after pip install --target ./lib requests

ID: python/pip-target-not-in-path

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
0证据数
2024-05-30首次发现

版本兼容性

版本状态引入弃用备注
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

根因分析

pip install --target 将包安装到指定目录,但不会将其添加到 sys.path。除非更新 PYTHONPATH 或 sys.path,否则解释器找不到该包。

English

pip install --target installs into the given directory but does not add it to sys.path. The interpreter cannot find the package unless PYTHONPATH or sys.path is updated.

generic

解决方案

  1. 95% 成功率
    export PYTHONPATH=$PWD/lib:$PYTHONPATH && python -c 'import requests'
  2. 90% 成功率
    import sys, os; sys.path.insert(0, os.path.abspath('./lib')); import requests
  3. 85% 成功率
    echo $(pwd)/lib > $(python -c 'import site; print(site.getsitepackages()[0])')/mylib.pth

无效尝试

常见但无效的做法:

  1. 95% 失败

    Reinstalling does not change sys.path.

  2. 90% 失败

    pip still installs to the active environment's site-packages, not the cwd.