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Linux下Python安装

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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的安装需要依赖这四个组件:gcc, zlib,zlib-devel,openssl-devel;所以需要预先安装,命令如下:

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

2. 下载编译

Python源码包下载地址: https://www.python.org/downloads/

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

3. 解压编译

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# tar -zxvf Python-3.6.8.tgz

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

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

4. 环境变量配置

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

使得配置的环境变量立即生效:

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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:

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[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
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>>> exit()
[root@hadoop001 app]#