How To Create Custom Exceptions In Python

In this video I will be showing you how you can easily create your own custom exceptions in Python easily.
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[@softwareengineer8923]

This channel is pure golden. Thanks a lot for another useful content🙏

[@AlbieryRodriguez]

I really love your videos, I've been learning a lot of them

[@ego-lay_atman-bay]

Can you do a video explaining pickling?

[@reezuleanu1676]

I only have one question, why would someone want to serialize an exception object using pickle?

[@aircommander26]

Nice, thank you for this...

[@WedgeDev1]

Nice video!

[@LegionLeague]

Pickling an Exception seems pretty random. What are use cases for it? Why would I want to pickle my custom Exception?

[@tochimclaren]

What I'm also asking. Genuinely, I don't know what it's used for.

[@VK-qh6pr]

Pickle is just serialising objects. Still confused what he wants to explain by that approach !?

[@creed404yt9]

​I guess it was just a bonus lesson like he didn't want to make a dedicated video for it, also this would make the video 8min ​@@VK-qh6pr

[@Indently]

Personally I have never had to pickle an Exception, but you never know, and it was a free way to include how __reduce__ works for classes that you would like to pickle someday :)

[@balazsszalai41]

I actually came across a situation where it comes in handy to pickle exceptions. In multiprocessing all the communication between processes is done using pickled data and for example if you handle your exception in a process which then sends its return value to the main program (for example by Pool.map), by pickling the exception you can just send it too and handle it again in the main program properly and know where it went wrong in the other process.

[@striatp]

Your tutorials are awesome! But I was just wondering what IDE are you using? It looks awesome.

[@Indently]

I use PyCharm

[@striatp]

@Indently Alright thanks! 😁

[@navidyaghmaei]

Hey love your tutorials. They are amazing. I was wondering though why you didnt use value: any, as it would also work

[@tochimclaren]

Why is pickle important and when is it useful.

[@victorgomez6777]

Great video! I do have a question: If you want to create a custom exception with only a message I usually do: Class MyException (Exception): ... And it does the trick, ¿Is there a cleaner way to do it? Because it feels kind of bungle 😅

[@notLinode]

If you just want an Exception with a different class name, that's what you do. I think this won't work in Python 2 though.

[@TasCashGr]

Life goals: "build a library called meeseeks"

[@umjames]

Can do!

[@rvft]

54 likes, zero dislikes

[@Indently]

Where all my haters at? D:

[@codures]

​@@Indentlythey await asyncio.sleep(2**32)

[@cihansenatak1090]

So, we Can expand try, except in Python with this method.

[@Algorithmswithsubham]

please make some ios apps

[@pabloalonso9083]

What does even pickling means ? 😂

[@skewty]

like JSON but It de-serializes into proper class instances auto-magically. Great for multi-process python sharing.

[@skewty]

the term comes from the process of preserving food for long term storage using pickling (salt brine)

[@skewty]

class HardwareError[T](Exception): def __init__(self, message: str, value: T): super().__init__(message, value) @property def message(self) -> str: return self.args[0] @property def value(self) -> T: return self.args[1]