centos7 python3安装环境常规依赖
python3安装twisted时报错
error: command 'gcc' failed with exit status 1
安装python36-devel后解决
顺便列出python3安装编译前常用依赖
yum -y install gcc python36-devel bzip2-devel sqlite-devel openssl-devel readline-devel xz-devel xz-devel tk-devel gdbm-devel
python3 编译安装前把以上全部安装下，减少之后安装包报错
