CentOS 源码安装 Python3
源码安装 Python3.6 步骤
下载源码并编译
使用编译安装，首先安装编译依赖
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make libffi-devel
创建一个工作目录，并进入目录
mkdir -p /usr/local/workspace/py36 && cd /usr/local/workspace/py36
获取 Python3.6 源码包
wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz
解压
tar -zxf Python-3.6.0.tgz
进入源码目录
cd Python-3.6.0
指定程序安装目录
./configure prefix=/usr/local/python3.6
编译
make && make install
安装已经完成
创建软链接
为了方便使用，创建软链接
ln -s /usr/local/python3.6/bin/python3.6 /usr/bin/python3.6
ln -s /usr/local/python3.6/bin/pip3.6 /usr/bin/pip3.6
执行 python3.6 测试
$ python3.6
Python 3.6.0 (default, Aug 18 2020, 12:41:53)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
替换默认的 Python2
删除默认软链接
rm -f /usr/bin/pip
rm -f /usr/bin/python
创建 Python3.6 的软链接
ln -s /usr/bin/python3.6 /usr/bin/python
ln -s /usr/bin/pip3.6 /usr/bin/pip
此时，执行 python 将默认执行 Python3.6