Functions in Python - Mutable Optional Parameters

Here’s another article in the Functions in Python series. If you haven’t read the previous parts yet, feel free to do so. Here they are:

1) Introduction to Functions
2) Functions with Parameters
3) The return Statement
4) Mandatory Parameters
5) Optional Parameters

In the previous article we were talking about optional parameters. There’s one more thing to optional parameters we should be aware of. The default value is only evaluated the first time the function is called. If the optional parameter is a mutable type, like a list or dictionary, and it’s changed in the function, the change will propagate through all the following calls. This is what we are going to talk about in this video.

***************************************************************************

Do you also like written content? Then come join me on my BLOG at prosperocoder.com.

***************************************************************************

If you want to learn more, you can purchase one of my courses on Udemy:

1) Python Jumpstart Course:
https://www.udemy.com/course/python-jumpstart-course/

2) Python in Science - Introduction to numpy:
https://www.udemy.com/course/python-in-science-introduction-to-numpy/

3) Blender Jumpstart Course:
https://www.udemy.com/course/blender-jumpstart-course/

4) Math - As Easy As It Gets: The Basics of Algebra:
https://www.udemy.com/course/math-as-easy-as-it-gets-the-basics-of-algebra/

***************************************************************************

I made the Video Intro Animation in Blender. I was inspired by this video:
https://www.youtube.com/watch?v=q1UKIn6XP6Y&t=24s
from the blenderBinge channel, one of the best Blender channels out there.