Linux自带Python2,这个Python2不能删除,因为用到很多系统命令,比如yum。输入python命令,查看是Python2.7.5版本[root@GuangBo~]#pythonPython2.7.5(default,Jun202019,20:27:34)[GCC4.8.520150623(RedHat4.8.5-36)]在linux2上键入“help”、“copyright”、“credits”或“license”以获得更多信息。>>>输入whichpython查看python所在目录[root@GuangBo~]#whichpython/usr/bin/python下面开始安装Python3首先安装依赖包yum-ygroupinstall"开发工具"yum-yinstallzlib-develbzip2-developenssl-develncurses-develsqlite-develreadline-develtk-develgdbm-develdb4-devellibpcap-develxz-devel创建一个Python目录mkdirpython3cdpython3/DownloadPython3.7.4wgethttps://www.python.org/ftp/python/3.7.4/Python-3.7.4.tar.xzTP:如果速度不够快,可以直接去官网下载,使用WinSCP等软件传输到服务器指定位置,我的存放目录是/home/<个人目录>/python3然后解压压缩包,进入该目录,安装Python3tar-zxvfPython-3.7.4cdPython-3.7.4/./configure--prefix=/home/GuangBo/python3make&&makeinstallerror~ModuleNotFoundError:Nomodulenamed'_ctypes'make:***[install]error13.7版本需要新包libffi-devel,安装好这个包后,编译安装再次。yuminstalllibffi-devel-ymakeinstall安装成功。创建软链接#ln-s/home/GuangBo/python3/bin/python3/usr/bin/python3#ln-s/home/GuangBo/python3/bin/pip3/usr/bin/pip3到此结束!~
