Python Made Easy

Creating your Own Libraries

By creating a library, you can package and encapsulate your code into reusable modules. This allows you to avoid duplicating code across multiple projects and breaks down complex tasks into smaller, more manageable components making it easier to understand, maintain, and update. You can declare and store your functions in a separate file and import them into your main program.

For example, let’s say we’ve written some functions to calculate the mean and median of some numbers. To use these functions in other programs, we can save them in a separate python file (such as mstats.py).

def calculate_mean(data):

    return ...