数据分析之一：IPython安装及使用

1. 安装

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• 进入virtual env环境，直接使用pip install ipython来安装

2. 使用IPython

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• 通过命令行启动

(venv)MacBook-Air:ipython Travis$ ipython
Python 2.7.10 (default, Oct 23 2015, 19:19:21) 
Type "copyright", "credits" or "license" for more information.

IPython 5.0.0 -- 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.

In [1]:

• 通过Jupyter notebook启动
  cd到工程目录下

(venv)MacBook-Air:ipython Travis$ ipython notebook
[TerminalIPythonApp] WARNING | Subcommand `ipython notebook` is deprecated and will be removed in future versions.
[TerminalIPythonApp] WARNING | You likely want to use `jupyter notebook` in the future
[I 12:09:46.791 NotebookApp] The port 8888 is already in use, trying another port.
[I 12:09:46.801 NotebookApp] Serving notebooks from local directory: /Users/Travis/PycharmProjects/ipython
[I 12:09:46.801 NotebookApp] 0 active kernels 
[I 12:09:46.801 NotebookApp] The Jupyter Notebook is running at: http://localhost:8889/
[I 12:09:46.801 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmati

服务默认监听http://localhost:8889/ , 可以用浏览器直接打开

->New->Python2 即打开编辑器，如下

以上就是简单的画图测试，注意首行应该添加%matplotlib inline或者%pylab inline，否则图片是无法打印的。

• 可以将文件保存成.ipynb格式，这是一种基于JSON的文档格式。**

• notebook模式快捷键一览：