《利用Python进行数据分析》读书笔记-3-第三章-IPython:一种交互式计算和开发环境

2017-03-08

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IPython:一种交互式计算和开发环境

Tip:动手敲一敲，跟所有由键盘驱动的控制台环境一样，锻炼对常用命令的肌肉记忆是学习曲线中不可或缺的一部分。

输入变量，会显示出该对象的一个字符串表示
IPython支持Tab自动完成，类shell
IPython支持内省，在变量前或后加?，就能查看对象的一些信息

代码设计提示

保留有意义的对象和数据
扁平化结构要比嵌套结构好（洋葱；低耦合，模块化）
无惧大文件（一次性干大文件，比加载若干小文件来得实惠）

这一章介绍了IPython的强大功能，作为数据分析利器的存在。目前我还是用PyCharm这个IDE顺手。这一章暂且搁置，若后续需要了解再来查看。–20170307

Python之禅

import this
# 查看Python之禅
The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!

今日感悟：在项目开发过程中，一些坑现在不填平，以后还会跳出来坑你，还是往死里坑。这也正是Errors should never pass silently.的意指。so，不要逃避困难，遇到问题，想办法解决。

本文作者： Linking
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