Python环境编译安装

1）Python3 下载地址：
wget https://www.python.org/ftp/python/3.6.10/Python-3.6.10.tar.xz

2）环境编译
yum -y install gcc gcc-c++ patch libffi-devel python-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel expat-devel

3）python 安装
解压tar.xz 首先需要进行xz 命令安装yum install -y xz
解压：xz -d Python-3.6.10.tar.xz
再次解压：tar -xf Python-3.6.10.tar
mkdir /usr/local/python3.6/
cd Python-3.6.10
./configure --prefix=/usr/local/python3.6/ --enable-optimizatio --with-openssl=/usr/bin/openssl
make -j4
make install

4）建立软件连接生成python3和pip3
ln -s /usr/local/python3.6/bin/python3.6 /usr/bin/python3
ln -s /usr/local/python3.6/bin/pip3.6 /usr/bin/pip3

5）设置 python3 环境变量
export PATH=$PATH:/usr/local/python3.6/bin/
source /etc/profile