windows下python2和python3同时安装ipython

1.ipython简介:

IPython 是一个 python 的交互式 shell，比默认的python shell 好用得多，支持变量自动补全，自动缩进，支持 bash shell 命令，内置了许多很有用的功能和函数

2.安装

pip install ipython
pip3 install ipython

想让winodows 下支持pip3,请参考:

 windows下python2和python3共存

3.使用

执行ipython

C:\Users\wanlifeipeng>ipython
Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:43:06) [MSC v.1600 32 bit (Intel
Type "copyright", "credits" or "license" for more information.

IPython 5.3.0 -- 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.

发现ipython调用的是python3.4解析器

由于windows中已经安装了cygwin,执行which ipython,发现了解决方法:

C:\Users\wanlifeipeng>which ipython
/cygdrive/c/Python34/Scripts/ipython

4.解决方法:

将C:\Python34\Scripts目录下的ipython重命名为ipython3

5.效果:

C:\Users\wanlifeipeng>ipython
Python 2.7.10 (default, May 23 2015, 09:40:32) [MSC v.1500 32 bit (Int
Type "copyright", "credits" or "license" for more information.

IPython 5.3.0 -- 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.

C:\Users\wanlifeipeng>ipython3
Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:43:06) [MSC v.1600 32 bit (Intel
Type "copyright", "credits" or "license" for more information.

IPython 5.3.0 -- 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.