Summer Lesson 25

Lesson 25

Creating Modules

Consider a module to be the same as a code library.

A file containing a set of functions you want to include in your application.

Simply, a module is a file consisting of Python code. A module can define functions,
classes and variables. A module can also include runnable code.

The benefit of modules is that it provides a way to share reusable functions.

What is a Module?

To create a module just save the code you want in a file with the file extension .py:

Creating a Module

Use a Module

In your other file:

Import the module named mymodule, and call the greeting function:

Note: When using a function from a module, use the syntax: module_name.function_name.

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Variables in Module

Save this code in the file mymodule.py :

In your main file:

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Renaming a Module

You can name the module file whatever you like, but it must have the file
extension .py

You can create an alias when you import a module, by using the as keyword:

Create an alias for mymodule called mx:

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