升级python2.7, 实现python2.7与python3并存

由于用到twilio模块, 所以需要升级一下python2, 但是又不想舍弃python2, 于是实现了简单的方法

python

先扔一块依赖

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make

先download一个压缩包

wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz

新建文件夹

mkdir /usr/local/python3

解压

tar -xvJf  Python-3.6.2.tar.xz

编译与安装

./configure --prefix=/usr/local/python3/ && make && make install

软链接

mv /usr/bin/python /tmp && ln -s /usr/local/python3/bin/python3 /usr/bin/python

改配置

vim /usr/bin/yum

把#! /usr/bin/python修改为#! /usr/bin/python2

vim /usr/libexec/urlgrabber-ext-down

把#! /usr/bin/python修改为#! /usr/bin/python2

[root@localhost~]# python -V
Python 3.6.2
[root@localhost~]# python2 -V
Python 2.7.5
[root@localhost~]#

OK

pip

顺道说一下, yum升级pip有点愚蠢

扔一个升级py

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

run

python get-pip.py

OK!

pip 

pip install twilio