在centos7下安装python3.7.9 1、安装各种依赖包yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel2、下载python3.7.9安装包并解压缩wget "https://www.python.org/ftp/python/3.7.9/Python-3.7.9.tgz" tar -zxvf Python-3.7.9.tgz3、编译安装cd Python-3.7.9 ./configure --prefix=/usr/local/python3 make && make install4、创建软链接ln -s /usr/local/python3/bin/python3 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip35、验证[root@seeker-01 ~]# python     Python 2.7.5 (default, Aug  7 2019, 00:51:29)      [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux2     Type "help", "copyright", "credits" or "license" for more information.     >>> [root@seeker-01 ~]# python3     Python 3.7.9 (default, Aug 28 2020, 13:28:49)      [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux     Type "help", "copyright", "credits" or "license" for more information.     >>>