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1.下载python包
wget https://www.python.org/ftp/python/3.9.10/Python-3.9.10.tgz
2.下载python3编译的依赖包
yum install -y gcc patch libffi-devel python-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
3.解压缩源码包
tar -zxvf /usr/local/software/tars/Python-3.9.10.tgz
4. 创建python的安装目录
mkdir -p /usr/local/software/python
5.移动解压后的Python源码包到python目录
mv /usr/local/software/tars/Python-3.9.10 /usr/local/software/python
6.进入解压后的目录并且执行
cd /usr/local/software/python/Python-3.9.10./configure --prefix=/usr/local/software/python/ # 指定安装目为/usr/local/software/python/
7.编译
make
8.编译安装
make install
9.添加linux环境变量 使用root账号
vi /etc/profile在末尾添加#pythonPATH=/usr/local/software/python/bin:$PATH保存后 执行source /etc/profile
10.修改python的链接指向
mv /usr/bin/python3 /usr/bin/python3.bakln -s /usr/local/software/python/bin/python3 /usr/bin/python3