BigData-Notes/notes/installation/Linux下Python安装.md

Linux下Python安装

系统环境：centos 7.6

Python版本：Python-3.6.8

1.环境依赖

Python3.x的安装需要需要这四个依赖：gcc， zlib, zlib-devel, openssl-devel，这四个软件需要先进行安装

yum install gcc -y
yum install zlib -y
yum install zlib-devel -y
yum install openssl-devel -y

2.下载编译

官方下载地址： https://www.python.org/downloads/

# wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tgz

3.解压编译

# tar -zxvf Python-3.6.8.tgz

进入解压后目录进行编译，可以指定编译安装的路径，这里我们指定为/usr/app/python3.6

# cd Python-3.6.8
# ./configure --prefix=/usr/app/python3.6
# make && make install

4.环境变量配置

vim  /etc/profile

export PYTHON_HOME=/usr/app/python3.6
export  PATH=${PYTHON_HOME}/bin:$PATH

使得环境变量立即生效：

source /etc/profile

5.验证安装是否成功

输入python3命令，如果能进入python交互环境，则代表安装成功

[root@hadoop001 app]# python3
Python 3.6.8 (default, Mar 29 2019, 10:17:41)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 1+1
2
>>> exit()
[root@hadoop001 app]#