Linux CentOs7 下安装python3

1、先安装python3相关依赖

yum -y install gcc

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

找到要安装的python3 具体版本

去官网找对应的python版本，我这里下载了3.9.12

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3. 下载python3 源码

F12查看源码，获取下载网址

wget https://www.python.org/ftp/python/3.9.12/Python-3.9.12.tgz

4、解压

tar -zxvf Python-3.9.12.tgz

5、构建

cd Python-3.9.12
# 设置安装路径
./configure --prefix=/usr/local/python3.9
# 安装python3.9
make && make install

6、配置全局命令

# 设置软链接
sudo ln -s /usr/local/python3.9/bin/python3.9 /usr/bin/python39
sudo ln -s /usr/local/python3.9/bin/pip3.9 /usr/bin/pip39
# 查看版本
python39 -V