Python

安装新版本python(3.5.1)

由于python3.4.1有些问题，于是决定安装python3.5.1，

1. 去官网下载python的压缩包，我下载的是这个
   

   Python 3.5.1 - 2015-12-07
   Download XZ compressed source tarball
   Download Gzipped source tarball

2. 解压 step by step

   xz -d Python-3.5.1.tar.xz 
   tar -xvf Python-3.5.1.tar
   cd Python-3.5.1
   ./configure --prefix=/usr/local/python3.5.1 #指定安装位置
   make
   sudo make install

OK

mouse@linux-tiza ~> python
Python 3.5.1 (default, Jan 24 2016, 15:18:50) 
[GCC 4.8.5] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 

接下来倒入环境变量[1]

set PATH $PATH /usr/local/python3.5.1/bin/ #fish-shell
PATH=$PATH /usr/local/python3.5.1/bin/ #bash

使用virtualenv创建虚拟环境并指定python3.5.1

mouse@linux-jntu ~> virtualenv venv --python=python3.5 #不是python3.5.1
Running virtualenv with interpreter /usr/local/python3.5.1/bin/python3.5
Using base prefix '/usr/local/python3.5.1'
New python executable in /home/mouse/venv/bin/python3.5
Also creating executable in /home/mouse/venv/bin/python
Installing setuptools, pip, wheel...done.
激活虚拟环境 venv
source venv/bin/activate.fish #fish-shell
source venv/bin/activate #bash