demjson报错_demjson use_2to3 is invalid

    ERROR: Command errored out with exit status 1:
     command: /data/wangzy-p/soft/anaconda3/envs/tf_1.14/bin/python -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-lkidxq7i/demjson_1adc3de9a48e4e169cf993fa26319b82/setup.py'"'"'; __file__='"'"'/tmp/pip-install-lkidxq7i/demjson_1adc3de9a48e4e169cf993fa26319b82/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-ldwnwp11
         cwd: /tmp/pip-install-lkidxq7i/demjson_1adc3de9a48e4e169cf993fa26319b82/
    Complete output (1 lines):
    error in demjson setup command: use_2to3 is invalid.
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解决方案

当setuptools >58.0.0时,demjson的依赖安装失败,demjson已经发布demjson3解决这个问题,使用参考 https://pypi.org/project/demjson3