Experience of Python Learning Week 2

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本周学习了Python的重要组成部分——模块，包括标准库如sys和os等，并了解了pyc文件的作用。同时，还探讨了数据操作的基础知识及字典、元组、列表之间的区别。

Adam

2017年7月27日

Experience of python learning

Week2

In the beginning of this week , I finally learn the most important part of python -- the module (the standard library means that the people who have created python wrote for us , such as sys, os and so on.

And what is pyc? As a matter of fact , the compiler of python’s real outcome is PyCodeObject , and then write it back into a pyc. So when your program runs for the second time , the program will try to find pyc in your hard disk. So we call pyc as a permanent way to save PyCodeObject.

And then I have learned the data operation , those are as follows:

And then the differences between :

In the end , learn how to fetch data from a key-value dictionary , and tuple , array(list) .