You've Been Accessing Values WRONG From Dictionaries In Python

You've been accessing values wrong from dictionaries in Python. #Code #Python #Shorts

[Yvant]

It's misleading to say that using the dict[key] is wrong. Most of the time, you want to get an exception for doing something wrong in the code. So no, people should not use dict.get UNLESS they really need to check if an element is in the dict

[vinicus]

its not always good to avoid exceptions by hiding them like that

[SirXtC]

tell me you just want attenttion on your videos without telling me you want attenttion on ur videos *misinfornation click bait*

[mjaysmileofficial]

second positional argument in .get() is None by default, you don't need to specify it explicitly.

also there is nothing wrong with getting dict values using [ ] notation for values that I know are exists and I would use .get() if I'm not sure they are, like in some API calls.

[yawninglion]

Worst advice you can get. Silent errors are the worst errors. Unless there's a reasonable fallback value, you shouldn't do this.

[ShrootBuck]

This isn't necessarily better. If a required key is missing, frameworks like Flask would be much safer with an exception than a None value.

[richcaputo]

The biggest mistake a programmer can make is thinking that errors are bad

[bthrkay]

CLICKBAIT . Sometimes you want a default value, other times you want an exception raised.

[AbhishekGhosh-ybnl]

In Java, it’s
map.getOrDefault(someKey, 0); // 0 is the default value.

[jaidenh]

even though this is showing a different way of accessing items inside of a dictionary, this one short has helped me understand dictionaries so much better as i always so lost on how they worked, but just seeing this syntax made me realise that its actually quite simple, and that ive just been overthinking it lol, im still very new in my journey of learning python (or just to code in general) so its all an experience! tysm for this short

[cipherxen]

Why is first method wrong? This dude seems to be a beginner in programming, who doesn't know power of exceptions.

[bettercalldelta]

None is already the default value by default (sounds funny), so if you don't pass a second argument to dict.get() it will just return None in case it finds nothing

[masterdementer]

Well thats convenient for API calls. I could remove the try-except error handling and shorten the code. But I still think that error handling is a better approach since you can 'handle' the way you want to proceed after you didn't find what you were looking for.

[gigachad]

This does not really work with python because then you will need to check that case anyway. This works better in languages like rust.

[deemon]

Your conception of what the square bracket notation is used for is wrong and sharing your opinion as fact is questionable.

[rodrigoqteixeira]

Bro just forgot that try except else finally exists

[VietnameseBoii]

Using square brackets only need to type 2 character

[chrisvinciguerra]

It is more pythonic to try except a key error than using.get

[YamiSuzume]

video starts, I see the code style, I leave.

[claffert]

It's not wrong. It depends on the case. Both ways are useful for different cases.