centos7源码编译安装python3.8.18

首先编译安装openssl 1.1.1

然后更新系统环境

yum -y groupinstall "Development tools"
yum install -y ncurses-devel gdbm-devel xz-devel sqlite-devel tk-devel uuid-devel readline-devel bzip2-devel libffi-devel

下载源码:

cd /usr/src
wget https://www.python.org/ftp/python/3.8.18/Python-3.8.18.tar.xz

解压:

tar -xvJf Python-3.8.18.tar.xz

进入目录:

cd Python-3.8.18

编译:

./configure --enable-shared prefix=/usr/local/python3 --with-openssl=/usr/local/openssl-1.1.1t
make && make install

查找软连接

# 查找
ll /usr/bin/ |grep python
ll /usr/bin/ |grep pip

# 删除

rm -rf /usr/bin/python
rm -rf /usr/bin/pip

重建软连接

ln -s /usr/local/python3/bin/python3 /usr/bin/python
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip

确认效果

python -V
pip --version

此时python默认已经是3.11,但CentOS yum 还是依赖Python2.7,需要修改 yum 相关配置文件,确保yum 依然能够正常运行
将/usr/bin/yum的顶部的:

!/usr/bin/python  改成  !/usr/bin/python2.7 

将/usr/libexec/urlgrabber-ext-down的顶部的:

/usr/bin/python  改为   /usr/bin/python2.7

将/usr/bin/yum-config-manager的顶部的

#!/usr/bin/python 改为 #!/usr/bin/python2.7

完成。

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