Python **KWARGS?? #python #coding #programming

This short video explains what **kwargs means in Python.

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[JayArnelBilocura]

kwargs is commonly used because it means "keyword arguments"

[austinnar]

For those wondering why you would use this rather than just name the arguments, the most common example is if you write a function that itself calls a function. By using **kwargs, you can pass on any extra arguments to the inner function call automatically by adding **kwargs to the end of the function call. It allows caller function and called function to work together while being completely decoupled (i.e. you don't need to include all the arguments for the inner function in the signature of the outer function)

[amrosamier]

Every time i learn something new about python makes me want to learn more

[rosesunflow]

kwargs is basically a variable. The "**" basically turns the input into an object with key and value.

[TheRealKitWalker]

Fantastic video. Rightly highlighted the difference of single and double asterisk. Wow!! Thanks so much dude

[gameknight]

Last semester I had a class on python and the lecturer didn't give a straight answer on kwargs thank you I finally understand

[hazy]

It's used in some specific scenarios. But when devs use this a lot, code becomes hard to debug or maintainable without really good docs

[shaded]

Seems like a great way to give someone else a headache

[reikoshea]

TFW you've been a profession python dev for nearly 15 years now, but you still watch these videos because you're self taught and the imposter syndrome is STRONG.

[myleslloyd]

Just pointing out that 3*1+2=5 as does 1*2+3=5 so, whilst it is a great video (thanks for all of the content), maybe choose examples that don't use 1 as a multiplier😅

[kainime]

Thank u so much sir, it actually helped me a lot 🥰

[Ht-]

It would have worked anyway with def func(a, b, c)

[Kylemsguy]

My only complaint about *args and **kwargs is that it obscures the arguments the methods could take. Make sure to write good docstrings if you do use them.

[TheAjon]

This little short told me more then a few lectures...

[tommasochiti]

This is kinda cool and scary at the same time

[nobodyofconsequence]

you know what's cool? You can also used the operator in reverse. func(**{'a':1, 'b':2, 'c':3}) is also valid. same goes for single astrix by the way

func(*[1, 2, 3], **{'a':1, 'b':2, 'c':3}) would do the same as func(1, 2, 3, a=1, b=2, c=3)

[omgky]

In cases like this I just can't see the benefit of just having one parameter that gets used like a dict if you can just have the parameters a, b and c in the function directly. It just makes it less safe since it gives no hint to the developer that has to use this what parameters are needed.
There are reasons for these kwargs but I would only use them for optional parameters and even then in most cases I would use normal parameters with a default value.

What I'm trying to say is, if you use them be sure to check if they are actually set and for god's sake, DOCUMENT THEIR EXISTENCE.

That being said I like your videos :)

[fishsauce]

Got the idea, but addition anyway would be same because of commutative law of addition.

[cborbon]

The commutative properties of addition doesn't do much to prove the functionality, but i see what he's saying.

[kirarevcrow]

It resembles the spread operator in JS but only for function arguments