Why *ARGS and **KWARGS are Useful in Python

This video was sponsored by Brilliant

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[brandone]

I'm a still newish infrastructure guy, trying to automate as much network functionality as I possibly can.

I don't really know any devs to pick their brain or have them expound on a topic to really cement the concept in my head.

Your videos have helped me tremendously in understanding python in a way that's actionable in my environment. Thank you!

[oromis]

absolute legend. I watched your web scraping video because it appeared on my feed and applies to my job, then I saw this one which was a missing piece of knowledge I had that I couldn't explain in my code. Nice job

[gabrieljeca]

Wow, I finally understood those concepts! Awesome content as always, JWR!

[jjdawg]

Great video! It also confirms my distaste of highly overloaded operators where you are guessing at the behavior. But in full disclosure I'm a lowly C programmer ;)

[Yeeeeeehaw]

man, your videos are extremely useful !

[eagug]

Very interesting, now I know better python. I understand that when you use kwargs, it makes difficult for the IDE (Pycharm, ...) to check that you are passing a valid header/parameter to the receiving class in edition mode or "compilation mode" before running, creating issues in runtime when you use the wrong entry. Thanks for your great video!

[datapeon]

Bro you are doing great job. Learning lot of from y ❤

[Matt-eswn]

Dataclasses seem so amazing. I wanna start using these instead of the annoying merhods i use with pandas right now

[keagankemp]

Sjoe 10mins to save hours of reading and frustration, great video

[danielmdubois]

This video does a good job on how, but maybe it could be better on why? I think some time could be spent explaining why you wouldn't just use a list parameter for any function (e.g.) that takes a collection, instead of *args. True, this would effectively enforce the caller performs some list comprehension on whatever is being dealt with, whether it be a tuple, multiple variables, iterable, etc... I think I know the answer -- turning something iterable into a list increases memory requirements and probably processing time from double work -- but it would be nice to be explicitly said; to explain why these syntax tricks add value to python. People coming from other languages, particularly statically typed languages, are probably more comfortable passing collections around, as it's a more straightforward concept. I feel like **kwargs is especially tricky to grok, because of the weird multi-step process of unpacking named arguments, which itself is a quirk specific to python, while then leaving a "remant" kwargs dictionary to operate on.

[Septumsempra]

A lesson from MrBeast: teach us something about args/kwargs in brilliant. We can't skip the information essential to this topic.
Ad Retention = $$$

[DoggARithm]

One of the best videos on the topic I've seen! Good explanation

[peterkim]

Please make a video how to deploy fastapi script online so other people can use my tool anywhere

[azhari]

This is very random but, you showed up in my recommendation page and I just wanna say that you have an awesome beard I can't not look at it

[stewart]

Another "brilliant" video from John. Pun intended 😉

[Qwasieee_P]

Someday I'll be mature enough not to laugh everytime he says mydict 😖😖