centos 安装python3.9

1.安装依赖

sudo yum groupinstall -y "Development Tools"
sudo yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel

2. 下载python3 源码

wget https://www.python.org/ftp/python/3.x.x/Python-3.x.x.tgz

3. 解压python 压缩包

tar xvf Python-3.x.x.tgz

4.编译安装

cd Python-3.x.x
./configure --enable-optimizations
make altinstall

5.更新默认路径

export PATH=/usr/local/bin:$PATH