error in qpth setup command: ‘install_requires‘ must be a string or list of strings 解决方案

问题描述

今天在执行pip install qpth时，遇到了以下bug：

$ pip install qpth
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple/
Collecting qpth
  Using cached https://pypi.tuna.tsinghua.edu.cn/packages/e1/d5/cb0aefa287767726e6e20b0b3774517feaaca11c775c0069824b4c68d1e8/qpth-0.0.15.tar.gz (11 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [3 lines of output]
      error in qpth setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected end or semicolon (after version specifier)
          numpy>=1<2
               ~~~^
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

这说明qpth的setup.py写的有问题。博主本来想找到下载下来的tar.gz解包后再修改的，奈何执行全局搜索也没有找到qpth相关的包，执行

conda run python -m pip cache dir

返回/root/.cache/pip，在这个文件夹里也没有找到。决定按照报错提供的链接地址下载后上传至服务器，修改setup.py后手动pip。

解决方案

下载链接：

https://pypi.tuna.tsinghua.edu.cn/packages/e1/d5/cb0aefa287767726e6e20b0b3774517feaaca11c775c0069824b4c68d1e8/qpth-0.0.15.tar.gz

将该压缩包上传至服务器并使用以下命令解压缩：

tar -vxzf qpth-0.0.15.tar.gz

进入该文件夹，打开setup.py文件，将报错中的

numpy>=1<2

改为

numpy>=1

然后执行

python setup.py install

成功安装qpth。 

参考链接

https://www.saoniuhuo.com/question/detail-2665945.html