本安装以CentOS7为例
[root@wt-test-3 python]# cat /etc/redhat-release CentOS Linux release 7.5.1804 (Core)CentOS7中默认安装的是Python2.7.5版本，YUM源中提供的也是Python2.7.5版本，可以通过以下命令查看:
[root@wt-test-3 python]# python --version Python 2.7.5 [root@wt-test-3 python]# yum info python Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.bit.edu.cn * extras: mirrors.tuna.tsinghua.edu.cn * updates: mirror.bit.edu.cn Installed Packages Name : python Arch : x86_64 Version : 2.7.5 Release : 68.el7 Size : 79 k Repo : installed Summary : An interpreted, interactive, object-oriented programming language URL : http://www.python.org/ License : Python想要使用Python3.x版本，需要我们手动安装，以下是我编译安装Python3.7的记录（目前最新版本），供大家参考：
[root@wt-test-3 software]# wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz解压下载后的安装包，并编译安装
[root@wt-test-2 software]# tar zxf Python-3.7.0.tgz [root@wt-test-2 software]# cd Python-3.7.0 [root@wt-test-2 software]# ./configure --prefix=/opt/python37 --enable-optimizations [root@wt-test-2 software]# make -j 4 [root@wt-test-2 software]# make install--enable-optimizations 选项启用PGO（Profile-Guided Optimizations，档案导引优化）和LTO（Link-Time and optimized）优化，性能提升约10%-20%，但会增加编译时间。PGO、LTO的详细信息可参考 [https://gcc.gnu.org/onlinedocs/gccint/LTO-Overview.html]()
Python build finished successfully! The necessary bits to build these optional modules were not found: _bz2 _curses _curses_panel _dbm _gdbm _hashlib _lzma _sqlite3 _ssl _tkinter _uuid readline 可以安装缺少的依赖包，然后删除编译目录重新执行编译安装步骤。
[root@wt-test-2 software]# yum -y install gcc-c++ openssl-devel \ zlib-devel libffi-devel readline-devel \ bzip2-devel ncurses-devel sqlite-devel \ gdbm-devel xz-devel tk-devel libuuid-devel [root@wt-test-2 software]# echo 'export PATH=$PATH:/opt/python37/bin' >> /etc/profile [root@wt-test-2 software]# source /etc/profile[root@wt-test-2 software]# python3 --version Python 3.7.0免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
