error in cryptography setup command: Invalid environment marker: python_version < '3'
来源：互联网 发布：java 局部变量 编辑：程序博客网 时间：2024/06/16 16:13
报错：error in cryptography setup command: Invalid environment marker: python_version < '3'
解决办法（版本问题，升级pip和setuptools）：
pip install --upgrade pippip install --upgrade setuptools或者 pip install -U pip setuptools
也可以手动下载最新版本，编译安装
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