检查操作系统

# 查看os
cat /etc/os-release 
NAME="CentOS Linux"
VERSION="7 (Core)"

使用yum安装python3

# 使用yum安装
yum install python3

# 查看python3版本
python3 --version
Python 3.6.8

• 发现yum安装的python3版本3.6.8,有点偏低
• 没办法只能源码来安装了

源码安装python3.12.6版本

# 官网下载Python-3.12.6.tgz

# 解压
tar xzvf Python-3.12.6.tgz -C /opt/module

# 安装前置依赖
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
yum install libffi-devel -y 

# 进入Python-3.12.6根目录
cd Python-3.12.6/
  
# 编译前配置
./configure --enable-optimizations --prefix=/opt/module/python312

# 编译
make

报错!!!

• 编译报错：Fatal Python error: init_import_site: Failed to import the site module
• 这里巨坑,之前配置时提示添加 --enable-optimizations 选项，导致一直报这个错,果断将这个选项去除，重新编译

# 编译清理
make clean

# 重新配置
./configure --prefix=/opt/module/python312

# 重新编译
make

!!!报错

• 编译报错: 提示openssl版本偏低
• Could not build the ssl module!
• Python requires a OpenSSL 1.1.1 or newer
• 那就降低python版本,选3.11.10吧

源码安装python3.11.10版本

# 下载&解压

# 配置、编译
./configure --prefix=/opt/module/python311
make
make install

# 安装成功
Installing collected packages: setuptools, pip
  WARNING: The scripts pip3 and pip3.11 are installed in '/opt/module/python311/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pip-24.0 setuptools-65.5.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

后面使用发现ssl模块没有，所有的重新来过!!!

# 先确保openssl安装ok(我这里安装的openssl3.0.10)

# python配置&安装
./configure --prefix=/opt/module/python311 \
  --with-openssl=/opt/module/openssl3010 \
  --with-openssl-rpath=auto

make & make install