Linux下安装python3.x 与python2 并存 0.先安装基本依赖包 yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make 1.官网下载编译安装包 wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz 2.解压 tar -xvJf Python-3.6.2.tar.xz 3.切换进入python的解压目录 cd Python-3.6.2 4.配置环境 ./configure prefix=/usr/local/python3 prefix 软件的安装路径 后面跟具体的安装目录 5.编译 && 安装 make && make install 安装成功后，/usr/local/目录下就会有python3了 6.因此我们可以添加软链到执行目录下/usr/bin ln -s /usr/local/python3/bin/python3 /usr/bin/python3 /usr/bin/python3 python3 如果不存在的话会自动创建 7.在任意目录，输入python3，出现如下提示则安装成功。同时验证python2是否也能正常运行 [doudou@centosaly ~]$ python3 Python 3.6.2 (default, Jul 9 2020, 21:18:16) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux Type "help", "copyright", "credits" or "license" for more information. >>> ================================================================= [doudou@centosaly ~]$ python Python 2.7.5 (default, Aug 4 2017, 00:39:18) [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>>
以上，大功告成。