Centos7 安装 Python3

CentOS7 系统自带的是Python2，需要安装Python3时要自己安装。

一、安装依赖

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 gcc

二、安装Python3

1. 在local目录下创建Python3目录

mkdir /usr/local/python3

2. 下载python 3.7版本包

wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz

tar -xvf Python-3.7.4.tgz

3. 安装目录

cd Python-3.7.4

./configure --prefix=/usr/local/python3

4. 编译安装

make && install

5. 创建软连接

ln -s /usr/local/python3/bin/python3  /usr/bin/python3

6. 测试

[root@zngw]# python3
Python 3.7.4 (default, Mar  9 2025, 20:04:29) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>