首先
sudo dnf install gcc gcc-c++ libffi-devel python3-devel python3-pip python3-wheel openssl-devel cyrus-sasl-devel openldap-devel
若出现错误
bash: dnf: command not found...
则执行
yum install epel-release yum install dnf
其次
pip3 install --upgrade pip2.安装环境
安装依赖
pip install virtualenv
安装环境
python3 -m v



