[Python learning] Module

• A module is an ordinary Python file that ends with .py extension

---

How to use

following code is in module_1.py

name = "module_1"

def sum(var1,var2):
    return (var1+var2)*23

1. import whole module 用的时候，要将module的名字的前缀加上

import module_1
var3 = module_1.sum(1,3)
print(var3)
print(module_1.name)

2. import the needed function,variable 这种方式，按需import

from module_1 import sum,name
var3 = sum(1,3)
print(var3)
print(name)