python libraries.

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Category: Uncategorised
Published: Tuesday, 06 July 2021 06:34
Written by Super User
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What is a Module?

A module is same as a code library. A file containing a set of functions you want to include in your application. you can also define variables, objects and dictionaries in them. you can save a module with .py extension. a module can be used in your program using import keyword. there are several ways to use import. Let us see example below.

 

Example

Save this code in a file named mymoduleexample.py

def hello(name):
  print("Hello : " + name)
 
Now use the module we just created, by using the import statement
 
import mymoduleexample
mymoduleexample.hello("Vijay Singh")  # syntax to acess module methods: module_name.function_name.
 
The module can  also contain variables of all types (lists, dictionaries, objects etc) see below example

Save below code in the file mymoduleexample.py

employee1 = {
  "name": "vijay",
  "salary": 36000,
  "country": "india"
}
 

now you can Import the module named mymoduleexample, and access the employee1 dictionary:

import mymoduleexample

place = mymodule.employee1["country"]
print(place)
 
You can create an alias of module when you import a module, by using the as keyword

Example

Create an alias for mymoduleexample called my_ex:

import mymoduleexample as my_ex

a = my_ex.employee1["name"]
print(a)