youandme 2020-06-03
1.安装相关依赖库(工具包)
yum install gcc 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 -y
2.下载python3的源代码(在linux终端下输入命令)
切换/opt目录
cd /opt
#下载python3.5.6源代码
wget https://www.python.org/ftp/python/3.5.6/Python-3.5.6.tgz
#python源码的下载地址。(全都在这了)
https://www.python.org/ftp/python/
3.解压缩源代码
tar -xf Python-3.5.6.tgz
(出现Python-3.5.6)
4.切换python3.5的源代码目录
cd Python-3.5.6
5.生成编译脚本(指定安装目录)
./configure --prefix=/opt/python35
6.编译
make
7.编译成功后,编译安装
make install
8.切换已经装好的python3.5目录
cd /opt/python35/
9.查看python3.5的可执行脚本文件
[ python35]# ls bin/
10.执行python3.5解释器
1.绝对路径执行方式一
/opt/python35/bin/python3.5
2.相对路径执行方式二
[ python35]# bin/python3.5
3.添加环境变量
1.添加软连接(用法)
ln -s 原文件路径 目标文件路径
2.添加软连接
(绝对路径)ln -s /opt/python35/bin/python3.5 /usr/local/bin/python3
4.添加pip3软连接
ln -s /opt/python35/bin/pip3 /usr/local/bin/pip3
5.查看pip3版本
pip3 -V
pip 10.0.1 from /opt/python35/lib/python3.5/site-packages/pip (python 3.5)
tip:
python3.5软连接:
ln -s /opt/python35/bin/python3.5 /usr/local/bin/python3.5
删除python3.5的软连接:
rm -rf /usr/local/bin/python3