centos安装python3和pip3

由于python3.6版本太高tensorflow不支持，所以这里编译安装python3.5

安装依赖

yum -y groupinstall "Development tools"
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

安装wget

yum install wget

下载python

wget https://www.python.org/ftp/python/3.5.4/Python-3.5.4.tar.xz

创建python3目录

mkdir /usr/local/python3

解压安装

tar -xvJf  Python-3.5.4.tar.xz
cd Python-3.5.4
./configure --prefix=/usr/local/python3
make && make install
创建软链接
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3