1、CentOS6.8 安装Python依赖包
# yum依赖包卸载。
# 通过它就能将当初安装某个软件所依赖的东西给清理掉
# 使用yum卸载软件的时候加上–remove-leaves参数
shell> yum install yum-plugin-remove-with-leaves
shell> yum groupinstall "Development Tools"
shell> yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
2、下载Python源码包并编译安装
到下载页面找对应版本的python：https://www.python.org/downloads/ ，复制其下载链接。然后到shell命令行
# 如果没有wget，yum install wget
shell> wget -c -P '/usr/local/src' https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
shell> cd /usr/local/src
shell> tar -xvf Python-3.6.1.tar.xz
shell> cd Python-3.6.1
shell> ./configure --prefix=/usr/local/python3.6.1 --enable-shared
shell> make -j 4 && make install
这样Python3.6.1版就安装上了。
3、验证安装
shell下输入
shell> python --version
Python 2.6.6
这是CentOS6.8自带的2.6.6版的Python。
再输入python3的命令验证安装
shell> python3 --version
-bash: python3: command not found
shell> /usr/local/python3.6.1/bin/python3 --version
/usr/local/python3.6.1/bin/python3: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory
shell> ls /usr/local/python3.6.1/lib/
libpython3.6m.so libpython3.6m.so.1.0 libpython3.so pkgconfig/ python3.6/
shell> echo /usr/local/python3.6.1/lib/ >> /etc/ld.so.conf.d/local.conf
shell> ldconfig
shell> /usr/local/python3.6.1/bin/python3 --version
Python 3.6.1
shell>
4、添加命令到环境变量
shell> echo 'export PATH=$PATH:/usr/local/python3.6.1/bin' > /etc/profile.d/python3.sh
shell> source /etc/profile.d/python3.sh
或者
shell> ln -s /usr/local/python3.6.1/bin/python3.6 /usr/bin/python3
5、删除编译Python时所需要的库
shell> yum groupremove "Development tools" --remove-leaves
# 这个无法执行，因为关联了yum，yum程序是受保护的
shell> yum remove zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel --remove-leaves
6、如果需要，设置别名方便使用
shell> alias py=python3
卓格
于 西港 办公室
更新 v0.1 2017年5月29日 14:30:35
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