以源码方式使用pip install安装时报错ModuleNotFoundError: No module named ‘tomli‘

报错信息如下

Processing/root/temp/source/tt-smi Installing build dependencies...done Getting requirements to build wheel...error error:subprocess-exited-with-error × Getting requirements to build wheel didnotrun successfully.│ exit code:1╰─>[16lines of output]Traceback(most recent call last):File"/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py",line363,in<module>main()File"/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py",line345,inmain json_out['return_val']=hook(**hook_input['kwargs'])File"/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py",line130,inget_requires_for_build_wheelreturnhook(config_settings)File"/usr/lib/python3/dist-packages/setuptools/build_meta.py",line162,inget_requires_for_build_wheelreturnself._get_build_requires(File"/usr/lib/python3/dist-packages/setuptools/build_meta.py",line143,in_get_build_requires self.run_setup()File"/usr/lib/python3/dist-packages/setuptools/build_meta.py",line158,inrun_setupexec(compile(code,__file__,'exec'),locals())File"setup.py",line8,in<module>importtomli ModuleNotFoundError:No module named'tomli'[end of output]note:This error originatesfroma subprocess,andislikelynota problemwithpip.error:subprocess-exited-with-error × Getting requirements to build wheel didnotrun successfully.│ exit code:1╰─>See aboveforoutput.note:This error originatesfroma subprocess,andislikelynota problemwithpip.

原因分析:
setup.py 在执行时直接 import tomli
但 pyproject.toml 的 [build-system].requires 里只有 setuptools 和 wheel
所以 pip install . --user 的隔离构建环境中没有 tomli，导致失败
将 tomli 添加到 [build-system].requires

现在构建时会先安装 tomli，setup.py 就能正常运行。
再次安装

pipinstall--editable.--user--force-reinstall