1、下载安装python编译环境依赖

yum -y install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel
#安装make编译所需的gcc,g++编译器
yum -y install gcc automake autoconf libtool make wget

2、移除centos中自带的python2.7的环境变量

cd /usr/bin
mv python python.bak

3、下载python3.7.0的源码压缩文件

1、创建安装路径

mkdir -p /usr/local/python/python3

2、进入指定路径下载python源码
cd /usr/local
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz
3、解压源码压缩包
tar -zxvf Python-3.7.0.tgz

4、安装python3.7.0

1、编译安装环境

cd /usr/local/Python-3.7.0/

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

2、进行安装python3.7.0

特殊注意：需要提前安装 yum install libffi-devel -y
make && make install
3、软链接绑定
ln -s /usr/local/python/python3/bin/python3 /usr/bin/python

5、安装pip

1、安装pip
cd /usr/local

wget https://bootstrap.pypa.io/get-pip.py

python get-pip.py
2、绑定软连接
ln -s /usr/local/python/python3/bin/pip3 /usr/bin/pip

3、验证是否安装成功
pip -V