Python Modules

What are modules in python?

Python modules are files, containing already written codes or programs. Which can be used directly in your python program. A module can be written in any programming languages to perform specific task .

Types of modules.

There are two types of modules in python :

1. Built-in modules
2. External modules

Built-in modules

These modules are pre installed modules. It means when you install python, these modules are also installed with python, so it is known as built-in module of python.

List of some useful built-in modules :

1. os
2. sys
3. random
4. abc
5. time
6. math
7. json
8. csv
9. copy
10. datetime

Using built-in modules

To use a built-in module, you have to write  import module_name . For example "import os".

External modules

These modules need to be installed externally. which is downloaded from the internet using pip.

List of some useful external modules :

1. pygame
2. tensorflow
3. django
4. numpy
5. flask
6. pandas
7. tkinter
8. matplotlib
9. scipy
10. pyglet

Using external modules

To use a external module, you have to write same thing  import module_name . For example "import pygame", but here it shows "no module found" because we haven't installed the "pygame module". This problem can be solved by using pip. Here is a detailed post on pip "Python Pip".

Which module is used in web development. Tell your answer in comment section.