Centos7 离线编译安装python3

一，安装依赖

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel readline-devel tk-devel gcc make

安装libffi-devel依赖

yum install libffi-devel -y 

注意：如果不安装这个包，python3可以装成功，但是后面装flask、uwsgi等依赖python3中有个内置模块叫ctypes时会报错。报错ModuleNotFoundError: No module named ‘_ctypes‘。需要安装依赖包和重新编译安装python3。 参考：https://blog.csdn.net/qq_36416904/article/details/79316972

二，下载python源码包

python官网https://www.python.org/downloads/source/ ，按需选择自己的版本，本文选择3.7.7版本，下载 Python-3.7.7.tgz即可

 三，解压安装python源码包

1，解压

tar -zxvf Python-3.7.7.tgz

2，安装

进入解压后的目录进行编译和安装

cd Python-3.7.7/
[root@localhost Python-3.7.7]#

[root@localhost Python-3.7.7]# ./configure --prefix=/usr/local/python3

[root@localhost Python-3.7.7]# make && make install

执行完后显示安装成功

3，建立命令软链接

ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3

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

编译安装完成