How To Use: '@dataclass' In Python (Tutorial 2023)

Here's a quick guide on how you can use dataclasses in Python, and how they help us avoid a lot of boilerplate code.

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[thepackbot]

That tidbit about "variables with default values must come after the ones without them", just explained a big problem I was having. Thank you!

[adrianbratt]

Very interesting, and cleanly presented. Nice.
It is really good to have the "why" as well as the "how"

[FrocketGaming]

Thanks for this. As I was watching and working on a selenium web scraping script I realized I could make a config dataclass to store all the css_selectors / xpaths I need for this script!

[pankuang-qk]

your explaination is very helpful for understanding the question 'why we need to do that ', and i like your explaination for reading a json file to an object. Thank you very much for this good video.

[davidl]

Thank you. Very clear like your udemy couse ;)

[velicihanates]

You could have used two asterix operators to insert json in your person class
'bob = Person(**json)'

[chromery]

Great video as always! Have you by any chance made a video about Pydantic (couldn't find it), or are you maybe planning to?

[MathewGuest]

How do data classes compare to pydantic third-party library?

[developer_anonymous]

'banana.calories = 69, i mean, 60' 😂

[aryandatla]

can we implement linked lists using dataclass?

[NoidoDev]

Is it better to use that for data or some dict? For example, It seem that I won't be able to get "keywords".

Also, there's a difference between __slots__ and slots=True, which is that you can use default value with the new method.

[kamurashev]

Nice! Named tuple vs dataclass for the next video?

[smanzoli]

It's important to talk about __post_init__ because real code WILL need it, dataclass cannot do all the __init__ most times.

[MrGeordiejon]

bob = Person(**json)
print(bob)
>>> Person(name='Bob', age='30', job='Salesman', friends=['Mario', 'Luigi'])

[jeyosman]

I just wanted to take a moment to express my sincere appreciation for your exceptional explanations and the engaging speed at which you communicate. Your clarity and enthusiasm truly stand out, making learning from you an absolute pleasure. Thank you for your dedication and talent—I genuinely admire the way you convey information

[lostsoul]

I'm learning python... bob= Person(**json) is better?

[SanwicklithMkalinga-gh]

Do u have a course… or mentoring program

[DrDeuteron]

Don't forget the dataclasses.Field object...can be very useful when dealing with telemetry.
There's also the "astuple" method that is attached to the class.

[nargileh]

bob = Person(json['name'], json['age'], json['job'], json['friends'])
why not use this instead?
bob = Person(**json)

[Timmie_Tudor]

Why are you teaching people how to use me?