安装python3.7的步骤
wget https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tar.xz
yum install -y gcc patch libffi-devel python-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
tar xvf Python-3.7.3.tar.xz
cd Python-3.7.3/
./configure --prefix=/opt/python3.7 #指定安装目录
在安装过程中遇到两处错误
1"zipimport.ZipImportError: can't decompress data; zlib not available"错误提示，
缺少zlib依赖导致
解决方法：yum install zlib zlib-devel -y
1 ModuleNotFoundError: No module named '_ctypes' 错误提示
缺少libffi依赖导致：
解决方法：yum install libffi-devel -y
问题解决后添加环境变量并加载配置
在/etc/profile 中添加
PATH=/opt/python3.7/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
加载配置文件
source /etc/profile