Linux安装Python

1.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

2.安装openssl1.1.x

yum install -y epel-release
yum install -y openssl11 openssl11-devel
ln -s /usr/bin/openssl11 /usr/bin/openssl

查看openssl版本 

openssl version

3.下载python3源码包

wget https://www.python.org/ftp/python/3.10.12/Python-3.10.12.tgz

4.解压缩源码包 

tar -zxvf Python-3.10.12.tgz

5.编译且安装 ​ 

（1）进入源码包目录

cd Python-3.10.12

（2）ls查看源码包内容

（3）释放编译文件 Makefile

指定安装目录为/opt/python310

./configure --prefix=/opt/python310

（4）编译

make

（5）编译安装,此步才会最终生成 /opt/python310/

make install

进入/opt目录查看python310文件夹,我们要的python3都在这里了

（6）更改linux的path变量，添加python3

修改/etc/profile系统环境变量配置文件

vim /etc/profile

把/opt/python310/bin添加进PATH 

export PTYHON_HOME=/opt/python310
export PATH=$PATH:$PTYHON_HOME/bin

重载配置文件 

source /etc/profile

（7）创建快捷方式

ln -s /opt/python310/bin/python3 /usr/bin/python3
ln -s /opt/python310/bin/pip3 /usr/bin/pip3

（8）进入Python3

python3