A preliminary knowledge of Python common modules

Module is the code that encapsulates a particular function.

The modules are divided into three types:

1. Custom Modules

2; third-party modules

3. Built-in Modules

One, custom module

test.py

#!/usr/bin/env python

#-*-Coding:utf-8-*-

Print ("I am Test")

Print ("I am Test1")

Print ("Hello World")

sys.py (the file calls the test module)

#!/usr/bin/env python

#-*-Coding:utf-8-*-

Import Test

Second, third-party modules

The third module is unclear

Three, built-in modules

Anyway a lot, here only three records are getpass, OS, sys

1. load a simple module getpass (Note: This notation is not available in Pycharm )

#!/usr/bin/env python

#-*-Coding:utf-8-*-

#写一个简单模块, this module is not available in Pycharm

Import Getpass

Username = input ("Username:")

Password = getpass.getpass (' Password: ')

Print (Username,password)

2. Loading an OS module

#!/usr/bin/env python

#-*-Coding:utf-8-*-

Import OS

Os.system ("Df-h")

3. Load SYS module

#!/usr/bin/env python

#-*-Coding:utf-8-*-

Import Sys

Print (Sys.path)

This article is from "think one or two" blog, please be sure to keep this source http://250919938.blog.51cto.com/962010/1907473

A preliminary knowledge of Python common modules