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A Closer Look At Structural Pattern Matching // New In Python 3.10!

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Too bad my camera decided to switch off near the end It probably couldn't handle the awesomeness of structural pattern matching 😎
Comment from : @ArjanCodes

This was really helpful How about a special on how to use it for minimal unique string matching when parsing commands and arguments, eg A - A*dd, Beg - Beg*in, Bef - Bef*ore, etc
Comment from : @neilhiggins350

decidedly the best tutor on YOUtube
Comment from : @johncongerton7046

Neat!
Comment from : @joaopedrorocha5693

cool video thx, maybe a side by side comparison of the 310 and the previous version would be nice
Comment from : @happygarlic13

Fantastic video!
Comment from : @immortalsun

Watering your flower
Comment from : @XPXSDH

Thanks!
Comment from : @edgecrush3r

what a great implementation of the classical Switch statement offering much versatility As i am not a big fan of the argparse module, this certainly makes my life easier in the future
Comment from : @edgecrush3r

Can you match by type and tuple, sorta like Scala's match?
Comment from : @xpmon

@13:30 why use an array for the arguments? Is that just personal preference?
Comment from : @Schecterbaby

Great content Very helpful for new Python programmers
Comment from : @bayuganspride

I have learned more from 10 arjan videos that i have from any other source on python another great video this
Comment from : @chrisweldon791

Actually, you don't need to import typing List and use more convenient and beginner-friendly 'list[int]' syntax!
Comment from : @airatvaliullin8420

In the first example why did you use the ! in the "other" case?
Comment from : @tomasbernardo5972

Can someone explain how the pipe character is used in python? It seems like Arjan is using it here as a logical OR, but I can't seem to get that functionality out of it in other settings
Comment from : @baphnie

Can this be used for factory pattern?
Comment from : @zachkramer4347

Very nice feature Thank you
Comment from : @user-tg3tg9gh3q

What does the !r do in the string interpolation?
Comment from : @valizeth4073

What's that "other!r"? I don't recognise that use of the exclamation mark or what the r does
Comment from : @digitig

great job Arjan
Comment from : @presstv

¡Gracias!
Comment from : @ManuelOchoa2711

Nice video Don't you think adding OOP in the "run_command_v4 function is a bit overkill?
Comment from : @EW-mb1ih

8:58 I'm not a big fan of v3 with two "case" clauses for handling same "quit" | "exit" | "bye" - repetition which could be error prone if you add "f*k off" as a 4th exit option but forgot to update all cause lines This might be especially painful when you have more "--" options
Comment from : @Jarek

Hi! I have just been introduced to your channel and I wanted to ask - how shall I navigate your videos from more like beginner level to advanced? Do you actually have videos for python beginners? Thank you!
Comment from : @andreaardemagni6401

patten matching before fixing recursion? meh
Comment from : @julians2597

Very interesting For the object pattern matching, is it actually instantiating a new object for every case check? Wondering whether this would have performance implications for classes with expensive constructors
Comment from : @imadetheuniverse4fun

I just came across your channel for first time and I LOVE IT!!! Thank you so much for your videos! brI'm a Python Developer too, who is learning Scala and I'm also a Youtuber 😂 So Hi Five for all our matching !!! 😂 brsaludos from Argentina 🥰
Comment from : @pensarcoding

what is difference between using IF/ELIF and case?
Comment from : @nahakuu

your videos are always very interesting thank you !
Comment from : @patricktarnaud

In v4, why did you use command as the variable for the match statement along with command being an element of the Command class? Doesn't overuse of the word command like that muddy the water for anyone reading it?
Comment from : @thesupercoach

bCamera accidentally switches off/bbrArjan: Sorry for the camera, I'll try to put a positive spin on itbrMe: Finally! Me and my ADHD brain can actually focus on the code being written, instead of constantly getting distracted!
Comment from : @torrentails

Wished I have this channel so much earlier in my career!!
Comment from : @jindy94

Neat! One more question please, i think you didn’t said it explicitly; okay the case has an order importance, but if i dont qui the program as you do with quit() , may i go by many case or only one is possible as the elif statement ? Thanks i hope i could currently use python 310 its dope!
Comment from : @obed818

Please, tell me you can implement duff's device in Python! XD
Comment from : @ingframin

Great tutorial @arjan One question In your first example, you used None to mention the return type of the methods without any return Is this the standard/preferred way? I don't really mention it if there is no return Thank you
Comment from : @mithunkinarullathil643

Switch statement in python 🤔?brCan't we do the same with dictionary
Comment from : @lufiporndre7800

Thanks, man! Very clearly explained!
Comment from : @mateuszbaginski5075

I'm pretty new to this channel Is that some inside joke you put on the wall (STRUCTURAL MATTER PATCHING)?
Comment from : @WeisSchwarz

Switch case in python is something that I've been waiting for so long Your tutorials are amazing by the way
Comment from : @luismiguel5391

Question at 9m34 looking at version 3 of the command Comparing the "with --force" case with the "no force", the print statements are different, but the next command is quit() in both cases Not seeing how the behaviour will actually be different
Comment from : @john-r-edge

10:35 since you're explicitly working with Pyton 310, you can just use list[str] instead of the typing import Same with dict, tuple, set etc
Comment from : @randolphbusch7777

The best structural pattern matching tutorial I've watched
Comment from : @zacky7862

Structural Matter Patching
Comment from : @rachevp

Is this the new best way to keep track of states in an application?
Comment from : @ByteNinja-YT

Having tried Rust after Python, it's a feature I was missing Glad to see it coming to Python as well
Comment from : @TBaguette

much appreciated how you explain things!! Thanks again
Comment from : @hudheyfa

How to use 310 in anaconda
Comment from : @ashishrock9585

This looks amazing for beginners that want to be able to easily parse input, or perhaps even files (by looping over lines)
Comment from : @NostraDavid2

More pydantic tutorials?
Comment from : @chriskeo392

I wonder, how does the object based matching affect performance/memory usage compared to the other alternatives?
Comment from : @josesimoes3478

Another great video Thank you for so many examples in a series to show the features and always appreciate the high audio/video production quality of your videos and I love your choice of background and lights
Comment from : @iChrisBirch

finally switch command in python one of the most comfortable programming languages without switch sounded bad Thanks for this tutorial and to see you in the next one ;)
Comment from : @profsor5008

I've been enjoying your library of videos! Keep it up
Comment from : @thefrator5275

Just starting to master structural pattern-matching in Scala and it's good to see it coming to Python 3 Loving your videos
Comment from : @mrc1500

This is pure magic… especially when objects get involved
Comment from : @JJSogaard

This reminds me of Elixir pattern matching, very cool! BTW How about a comparison between `pyenv`, `pipenv` and `python -m venv`?
Comment from : @ConfusedHomer

Thank you so much for the video, it was absolutely flawless
Comment from : @HadesMrDark

I skipped this video when it came out, because I wanted to watch it when I start using Python 310 But somehow Youtube stopped recommending me your videos (have been watching one every day for the last weeks) - so I decided to go to your channel and browse the videos by myself Turns out: this is the only one I haven't watched yet Great job!
Comment from : @samuelstelzer

Great video as always!
Comment from : @aurelistrate1633

Woooohooooo, anotther great video! However, I am not quite sure how much I will actually use this feature, let's see
Comment from : @robertbrummayer4908

Did I also mention that if you were to combine the legacy capabilities of Microsoft Access with the super power of R, you could essentially transcend anything that can be done in Python? Not only can you transcend it, it is possible to construct the solution more elegantly than can be done in Python Just sayin
Comment from : @BRichard312

"Structural Matter Patching", ehbrbrI need one of those signs to be behind me in Teams calls
Comment from : @RoamingAdhocrat

i already have router functions that basically do this with nested ifs and calling other functions, this will clean that up nicely :D
Comment from : @Maric18

Since 39, Python lets you type hint directly with the builtin types, no need to import List and the like from typing See PEP 585
Comment from : @schoolmonkey13

Wtf is happening to python these days -_-
Comment from : @armandvillaverde9812

Arjan I recently discovered your channel and honestly your way of expressing whatever the idea on your mind is very precise and neat Me and my friends also have a channel for educational content mostly on software and your channel really re-inspired me I have spent lots and lots of hours on YouTube trying to find good quality and fun content on topics like these and you are golden Thank you Can't wait to see more of your content!
Comment from : @goktugbasaran7591

I see myself nesting these indefinitely…
Comment from : @franziscoschmidt

one of the oldest features of rust
Comment from : @momoalnajjar

Surprised that there isn't a case statement in Python why do I remember learning it? Maybe that was Javascript or something
Comment from : @xpkareem

I think the maintainers of argsparse are going to be very happy with this Big refactor though!
Comment from : @WernerRaath

Can you match a REGEX with this?
Comment from : @snoopyjc

Just patiently waiting for Python to turn into Easy Haskell
Comment from : @sagnikbhattacharya1202

Rust programmer: welcome to the club! This is an amazing language feature
Comment from : @AnAmiC

Wait, has python not had a switch statement equivalent for all this time and I never noticed? lol
Comment from : @GlobusTheGreat

Finally a switch case My day is saved I always used an external switch package as a standin
Comment from : @anjanavabiswas8835

Oh wow I really want JavaScript to have this too
Comment from : @falxie_

Hey do you have Odysee channel? I love these videos
Comment from : @wilmhit

Idea for a future series:brGo through a module, for example pathlib, and breakdown the inner workings There is so much to learn from the professionals who write production grade code
Comment from : @dovidsgreenberger435

Thanks for this
Comment from : @mistercakes

I just studied functional paradigma applyin it to oCaml and i love this new feature
Comment from : @lianyf8866

Thank you!! Beautifully explained You are a gifted teacher I previously watched another video on this topic and was baffled After your video I feel primed for the 310 release
Comment from : @dovidsgreenberger435

Hi 👋 Your videos are really good and very smooth Can you please make a video on Mixin classes and when to use them Thanks 👍
Comment from : @akshaysharma6160

Hi Arjan, well explained, thank you brbrAt least for me, your videos are the perfect middle between too little and too much information Owned yourself a sub!brbrGroeten uit Groningen :-)
Comment from : @ThijmenCodes

Keep up the good work, I appreciate the effort :)
Comment from : @sk00sha18

Thank you so much for the explanation! Structural Pattern Matching is more powerful than I imagined and I can't wait to try it out!
Comment from : @hicoop