Modules

Modules are like a mini program that can be dropped into your Python programs. Each module is an individual file that can be combined to create a program, app, website or whatever else you can think of. This means you can modify or edit one particular element of your app without affecting the rest (following Object Oriented Programming principals).

A python module can contain a set of variables, Functions and Classes and Objects. A module is a mini-program in itself.

Use:

import module_name

When you need to use code from another module in your app. Alternatively import module code within Namespaces:

from module_name import object_name

- or -

from module_name import *

to import all objects

When you import a module into python code it will only initialize once. No matter how many times you use it.