Python 3發(fā)布3.5版本，看了PEP新特性话瞧，還是非常棒。安裝python3.5寝姿，并搭建相應的環(huán)境交排。
安裝python3.5
官網網站下載python3.5的mac安裝文件。安裝3的同時饵筑，是不會影響2.X的埃篓，兩個版本可以共存啦舷手。
創(chuàng)建 virtulenv 環(huán)境
安裝python3.5之后戒突，3.x版本的包響應也在后面加個3柄瑰，例如 pip和pip3
? python3 python
python python3 python3.4m python3.5m-config
python-config python3-32 python3.4m-config pythonw
python2.6 python3-config python3.5 pythonw2.6
python2.6-config python3.4 python3.5-32 pythonw2.7
python2.7 python3.4-32 python3.5-config
python2.7-config python3.4-config python3.5m
? python3 which python
/usr/bin/python
? python3 which python3
/usr/local/bin/python3
? python3 which pip
/usr/local/bin/pip
? python3 which pip3
/usr/local/bin/pip3
需要創(chuàng)建一個 虛擬環(huán)境枝恋，運行：
virtualenv -p python3 venv
該命令使用系統的python3來創(chuàng)建虛擬環(huán)境，激活venv環(huán)境晚树，查看python版本
? python3 source venv/bin/activate
(venv)? python3 which python
/Users/ghost/Rsj217/python3/venv/bin/python
(venv)? python3 which python3
/Users/ghost/Rsj217/python3/venv/bin/python3
(venv)? python3 python
Python 3.5.0 (v3.5.0:374f501f4567, Sep 12 2015, 11:00:19)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
此時虛擬環(huán)境使用的就是python3.5啦
安裝ipython適合3.5的版本
激活venv虛擬環(huán)境译秦，使用 pip3直接安裝 ipython
(venv)? python3 pip3 install ipython
...
(venv)? python3 which ipython
/Users/ghost/Rsj217/python3/venv/bin/ipython
(venv)? python3 ipython
Python 3.5.0 (v3.5.0:374f501f4567, Sep 12 2015, 11:00:19)
Type "copyright", "credits" or "license" for more information.
IPython 4.0.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
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That's all两残， enjoy~
