Use of Python modules

I. Standard template using built-in module SYS

#hello. py file

#!/usr/bin/env Python3
#-*-Coding:utf-8-*-#本文件使用utf-8 encoding

' A test module ' #任何模块代码的第一个字符串都被视为模块的文档注释, does not print output

__author__ = ' Michael Liao ' #作者名

Import SYS #导入模块sys

def test ():
args = sys.argv #SYS.ARGV is a list that stores a string of command-line input

Print (args)

If Len (args) ==1:
Print (' Hello, world! ')
Elif len (args) ==2:
Print (' Hello,%s! '% args[1])
Else
Print (' Too many arguments! ')

If __name__== ' __main__ ': #函数入口, the direct runtime executes the statement under T, and when used as a module, does not output the following statement;
Test ()

Second, call the Hello module

1. The modulation module does not use if __name__== ' __main__ ':

A. New get.py file Call hello.py

#get. py

#!/usr/bin/env Python3
#-*-Coding:utf-8-*-

' A test module '

__author__ = ' Sume ' #作者名

From Hello Import Test #导入模块hello

Def get ():
Print (' Lalala ')

Get ()
Test ()

b.hello.py file

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

' A test module '

__author__ = ' Michael Liao ' #作者名

Print (' The first print ') #添加此处print

Import SYS #导入模块sys
def test ():
args = sys.argv #sys. argv is a list that stores the string entered by the command line
Print (args)
If Len (args) ==1:
Print (' Hello, world! ')
Elif len (args) ==2:
Print (' Hello,%s! '% args[1])
Else
Print (' Too many arguments! ')

Test ()

2. The modulated module uses the if __name__== ' __main__ ':  

a.get.py file

#!/usr/bin/env Python3
#-*-Coding:utf-8-*-

' A test module '

__author__ = ' Sume ' #作者名

From Hello Import Test #导入模块hello

Def get ():
Print (' Lalala ')

Get ()
Test ()

b.hello.py file

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

' A test module '

__author__ = ' Michael Liao '

Print (' The first print ') #添加此处print

import sys  #导入模块sys    
def test (): 
    args = sys.argv   < br>    print (args)
    if Len (args) ==1:
         Print (' Hello, world! ')
    elif len (args) ==2:
        print (' Hello,%s! '% args[1]
    Else:
        print (' Too many arguments! ')

if __name__== ' __main__ ':   # add here

Test ()

Use of Python modules