安装python(3.7)

备注：此操作系统为centos7,全部操作都在root用户下执行
1.准备，安装编译相关工具

yum -y groupinstall "Development tools"
yum install gcc patch libffi-devel python3-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel -y
yum install libffi-devel -y

2.下载安装包并进行解压

wget https://www.python.org/ftp/python/3.7.6/Python-3.7.6.tar.xz
tar -xf  Python-3.7.6.tar.xz

3.编译与安装

mkdir /usr/local/python-3.7.6 #创建编译安装目录
cd Python-3.7.6
./configure --prefix=/usr/local/python3.7.6 --with-ssl
make && make install

4.建立软连接

ln -s /usr/local/python-3.7.6/bin/python3.7 /usr/local/bin/python3 
ln -s /usr/local/python-3.7.6/bin/pip3 /usr/local/bin/pip3 

5.检查安装是否成功

python3 -V
pip3 -V