python安装anyjson模块报错_error in anyjson setup command: use_2to3 is invali

错误如下：

Collecting anyjson==0.3.2
  Downloading anyjson-0.3.2.tar.gz (9.4 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      error in anyjson setup command: use_2to3 is invalid.
      [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.

经过分析得出：

pip 安装 ​​anyjson==0.3.3​​​ 版本时报错 error in anyjson setup command: use_2to3 is invalid.
当然在安装其他版本时也会有这种报错，比如安装 ​​​django-celery==3.2.2​​​版本，它会先安装依赖包anyjson
主要原因是在setuptools 58之后的版本已经废弃了use_2to3

解决办法：

降低setuptools版本于50一下

pip install setuptools==50.3.2

然后执行pip install anyjson== 0.3.3