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@cychoboy
2 жыл бұрын
Slots can also help you avoid certain types of bugs. For instance person.addres = "abc" becomes an error because "address" was misspelled. Vanilla classes will accept this input without any error leaving you to figure out why the address field wasn't changed as intended.
@foji-video
2 жыл бұрын
that I think is actually the main advantage when building serious applications
@lawrencedoliveiro9104
2 жыл бұрын
If you have read/write properties on a class, specifying slots is a very good idea.
@SkyOceanNet
Жыл бұрын
I actually had that error inside my code for such a long time undiscovered. Recently I found it while reforming the code. Now I'm using slots and it can prevent that kind of mistakes. Thanks to Arjan and Edmunds!
@Mr1995Musicman
2 жыл бұрын
This is a great feature. Dynamic members is like loose typing: it sounds great as a beginner developer, but as a more experienced developer it's more often a headache
@arpitkumar4525
4 ай бұрын
Even as a experienced dev, dynamic attributes and pretty much non existent boilerplate code seriously helps in prototyping or testing out risky features(risky in terms of feasibility). But other than that of course these should be avoided like the plague
@artyomvancyan2000
2 жыл бұрын
It is nice to see new videos about python but it's coming unactual more as there are a bunch of video curses about python. I very like your videos about project architecture and the unique code examples that you were using. I would really like to see in your channel videos about UML diagrams, project file structure, documenting packages and modules, design patterns that you haven't talked about them yet, etc. Thanks for your job.
@PeterSeres
2 жыл бұрын
I second the opinion that the most interesting videos are that teach us how to reduce coupling in the code by using design patterns and how to make python projects that are scalable.
@hanabimock5193
2 жыл бұрын
Totally agree on that. Also if performance is a problem, just avoid python.
@ArjanCodes
2 жыл бұрын
Thanks & no worries - there will definitely be more of those videos in the future.
@jacksonarnold27
2 жыл бұрын
Yes!! Project structure, program flow design, design patterns, etc would be great!! Same with UML stuff, I’d love some in depth videos on any of these
@Sam-qn6hl
2 жыл бұрын
Amazed that nobody has questioned using the lower bound rather than an average metric, or plotting the distribution of the different runs. It's not clear that a lower minimum translates into general better performance in most cases, especially a "20%" difference. Having said that, this was an interesting video. Might run some of those tests myself.
@isaacwolf2806
2 жыл бұрын
Same thing I was thinking! Typically I like to see min, mean, and max. And if I'm trying to convince a coworker my way is better then I just take the best one. 😁
@fjolublar
2 жыл бұрын
the lower minimum is the most accurate measurement to take
@rafarios50
2 жыл бұрын
@@fjolublar why is it the most accurate?
@jakesurrett3518
2 жыл бұрын
Sweet new set! Just a little feedback: I would love to see a little bit of graphics/illustrations/diagrams sprinkled in the explain-to-camera sections. When there is a visual complement to the topic/explanation at hand I just can't help but feel more engaged in the discussion. Fireship on KZitem has mastered this technique in place of appearing on camera at all (which I'm certainly not suggesting). SciShow is another excellent example of this technique in action. I suppose news broadcasts had this figured out from the start. Anyhow, food for thought at least and thanks for another great python video.
@ArjanCodes
2 жыл бұрын
Thanks for the suggestion Jake, I agree that would be helpful!
@gshan994
2 жыл бұрын
I like dat you are trying to be like other youtubers wid d lights in BG n all. But i subscribed your channel solely for the knowledge u share. Yes, the setup is good, but honestly I loved your setup with a straight up facing camera.
@malteplath
2 жыл бұрын
I can see that you are proud of your new studio/office - and you should be! One aspect of inheritance with slots that you didn't mention, and that I am unsure about: how do you add new attributes in a class that inherits from a class with slots? Do you have to declare __slots__ again in the subclass?
@chaddrobertson5805
2 жыл бұрын
I was recently told about slots on an SO question that I'd answered, and was quite confused by the concept until now. This was a fantastic explanation - thank you! A big +1 for touching on inheritance (was my largest concern as I was watching).
@q2kq885
2 жыл бұрын
Dataclass is truly a powerful structure in python. I'm really looking forward to learning more tips and tricks to make the python code faster. This tutorial is helpful. Thanks a lot!
@jpconstantineau
2 жыл бұрын
Great video! I wonder if micropython and circuitpython support slots at all. Python on microcontrollers can use all the performance help and this is something most people wouldn't even know about.
@bryangalindo
2 жыл бұрын
Nice setups!! The changing light in the first setup was a little distracting, but the other setups were perfect. Also, thanks for sharing how slots work, its limitations, and providing a real-life example of a tool using slots. Very informative!
@_.gray._
2 жыл бұрын
Loving the new setup! This explains slots really well, and I might just remember to use them next time I write a class haha.
@Rodrigo-rq1dx
2 жыл бұрын
The sofa set (0:54) has a lot of potential for you to add animations to explain what you're talking about. Like sketches/code snippets that illustrate.
@ArjanCodes
2 жыл бұрын
Good suggestion! I definitely want to explore animations to improve the clarity of the videos.
@saeedgnu
9 ай бұрын
In Go, you can "compose" several structs in a bigger struct, and get convinience of multiple inheritance, without inheritance at all. But in Python, sometimes the only way to make your class smaller is to use multiple inheritance. I think in some ways, Go is a better Python than Python (based on the Zen of Python).
@unusedTV
2 жыл бұрын
Audio has a bit more echo than in the past, in the first two setups. Coding setup is fine.
@burnere633
2 жыл бұрын
h4X0r Arjan to corporate Arjan. Also changing lights in the background is a bit distracting.
@ac130kz
2 жыл бұрын
I think attrs is such an awesome thing, it is faster than dataclasses, has validation, extra features, and the slots are enabled by default!
@nocodenoblunder6672
2 жыл бұрын
What is attrs?
@dqalombardi
2 жыл бұрын
I felt so certain that this was just going to be clickbait but honestly it just makes so much sense and I can't believe I didn't know about this before now.
@Swissfonk
2 жыл бұрын
Love your new Studio.
@ZeZa1515
2 жыл бұрын
Really liking the new setups! Your face in the coding setup had a lot of shadows on it though, so it wasn't very clear
@StevenMartinGuitar
2 жыл бұрын
The shirt seems a little formal :D but the new recording setup looks dope!
@ArjanCodes
2 жыл бұрын
Haha, yeah I thought let’s change things a bit for fun. Next time, back to hoodies & simple shirts 😁
@Michael201078
Жыл бұрын
Slots - very useful think. Thank you for the explanation.
@enigq
2 жыл бұрын
May I just say that I love the graph monster in the background?
@appuser
2 жыл бұрын
Looks reeaally good. I already thought your setup was tight.
@ivolol
2 жыл бұрын
I think you could add a translucent rectangle code graphic inset under the shelf light or something, on the left at 1:00 that could help show the code structure of the very things you're talking about, would work really well
@niksen3300
2 жыл бұрын
Hey Arjan! I have been watching your videos and i have a question that i could not find a clear answer to. Is there a reason to NOT use dataclasses? It really seems to be the cleaner approach to managing and writing your classes but are there reasons to pick normal classes over them? Great content by the way! Loving your channel.
@kenhaley4
2 жыл бұрын
Very nice...as usual. It seems like another advantage of using slots would be to catch spelling errors in your classes' attribute names. For example, without slots, the statement myPerson.namee = "Joe" would work fine, but myPerson.name would not be affected. But using slots, the statement would raise an error: 'Person' object has no attribute 'namee' which would let you find and fix the spelling error much sooner.
@newoptionz
Жыл бұрын
Thanks @ArjanCodes. Unfortunately I have not yet seen your free 7-step guide? I have signed up at the link you indicate and even purchased some of your courses by I haven't found this elusive guide, lol. Please help.
@nsontung
Жыл бұрын
Thank you so much, Arjan, great lesson. It improved my code performance a lot.
@ArjanCodes
Жыл бұрын
Glad you liked it!
@PawelOlas
2 жыл бұрын
the new backgrounds and cameras you use are very nice. pro!
@ArjanCodes
2 жыл бұрын
Thanks Pawel!
@willemvdk4886
2 жыл бұрын
Congrats on the new studio/office, Arjan! Looking good. Good to see the contents don't suffer the even better look. Still very informative! Love it. Kappertje gepakt trouwens?
@CornishMiner
2 жыл бұрын
I'm liking the new setup Arjan. Super clear video and great sound.
@davidlinesq
2 жыл бұрын
Love the new recording setup! Thanks for the content and hope you get to 100k subscribers soon.
@ArjanCodes
2 жыл бұрын
Thanks David!
@holographicsol2747
Жыл бұрын
thank you that just helped a lot as i remembered watching this a while ago and came back to refresh my mem!
@ArjanCodes
Жыл бұрын
Glad to hear you found it helpful!
@holographicsol2747
Жыл бұрын
@@ArjanCodes awesome
@dedekind1982
2 жыл бұрын
Thanks! Find ways to keep delivering value like this. Thank you
@ArjanCodes
2 жыл бұрын
Thank you, will do!
@casperschutte2516
2 жыл бұрын
Thanks for the videos. They are always super interesting and very practical
@djangodeveloper07
2 жыл бұрын
high quality content about python on this Channel. No Doubt in it
@ArjanCodes
2 жыл бұрын
Thank you Ahmad, glad you like it!
@theherk
2 жыл бұрын
Dang, That set looks superb.
@obsidiansiriusblackheart
2 жыл бұрын
This is such a fantastic video and the fact that it's completely free is astounding!
@pthube
2 жыл бұрын
Thanks for sharing this cool feature
@gheefop
2 жыл бұрын
no hoodie? Arjan I think this strapping professional has taken over your channel 🤣 new sets look great
@MaksimKupfer
2 жыл бұрын
Really insightful my friend, and great pace as well! Looking forward to following your content.
@ArjanCodes
2 жыл бұрын
Thank you Maxim, glad you liked the content!
@TechieGuy82
2 жыл бұрын
Superb as always. Thumbs up
@zacharyAbresch
2 жыл бұрын
Looking stellar mate, sharp looks to match yer words!
@sasha297603ha
2 жыл бұрын
Great new studio and very interesting topic. Well done
@florescustefan5239
2 жыл бұрын
I like the new setup, refreshing - good job!
@jakob1379
2 жыл бұрын
Nice video! A great way to better show the value of variables is with 'from rich import print'. It automatically highlights types and emphasizes structure.
@flightmansam
2 жыл бұрын
Fantastic video. I’m gonna use slots for sure! Also yes, I love the new look. Enjoy your week!
@SuperGrimmy
11 ай бұрын
After python 3.11 the benefits of using slots on performance is very low as far as I can see, but you are still saving memory. That's not a bad thing for object you create a lot of instances of.
@sami3592
2 жыл бұрын
Nice video. I also like your new setup. Your explanation of the topic always best. Thanks man.
@ajflorido
2 жыл бұрын
Cool video, a very good explanation indeed. And a really cool recording setup :D
@EngHassanIbraheem1998
2 жыл бұрын
You have a fantastic skill in choosing topics. Keep it up.
@christianforster3408
2 жыл бұрын
Hi Arjan, love your videos! Just one little note. Wouldn't it be a better measure to use the average performance, than the minimal one? At least I'd be more interested in the average difference in performance ;) Cheers!
@demasjaring5435
2 жыл бұрын
Awesome camera quality 👌
@ArjanCodes
2 жыл бұрын
Thank you!
@heljhumenad
2 жыл бұрын
This is so much informative especially on perf of py classes
@BartKevelham
2 жыл бұрын
Awesome new setup Arjan! If I'm very nitpicky (but that's not a thing I would ever be) then I'd say the programming view could use a bit of fill light for the right side of the face. But quite an awesome step up already. And besides that, another excellent video. Keep it up!
@ArjanCodes
2 жыл бұрын
Thanks Bart! I agree & it’s already fixed for the next batch 😊.
@henrikholland1730
2 жыл бұрын
Great video as always. Love the new studio set up.
@dhruvakashyap
2 жыл бұрын
Amazing new setup! Great video as always!
@ArjanCodes
2 жыл бұрын
Thank you!
@ThomasConrad
2 жыл бұрын
Very informative. I honestly didn't know this. Free performance increases are the best performance increases.
@spell105
10 ай бұрын
There is no such thing as a free lunch, it's worth knowing about the limitations of slots.
@steshinanton
2 жыл бұрын
The videos are amazing! I like the way you explain things. It is easy and fun to follow. I always find something useful even if I know the topic and recommend your videos to my colleagues because they are so informative. The way you present inspires me when I do my presentations. The new setup is very nice!
@PedigreeGuitars
2 жыл бұрын
Great video. Always learning with you. The new setup look great!!
@ArjanCodes
2 жыл бұрын
Thank you Pedro!
@AlexGb007
2 жыл бұрын
Hey Arjan, congrats to your new setup! Looking forward to achieving 100k subs 👍
@ArjanCodes
2 жыл бұрын
Thank you Ali!
@PracticalPillow
2 жыл бұрын
Honestly, this is the first time I see slots, but I have a question. Does performance grow for get, set and delete evenly or some of them has a bigger contribution? Thanks you for the video!
@asif-alam
2 жыл бұрын
Believe me or not, I actually watch coding videos instead of taking sleeping pills. And your new studio looks really cool!
@python_byte
2 жыл бұрын
Awesome, amazing way to create a well readable and secure code
@Claxiux
2 жыл бұрын
Chief, that lights thing on your left is a bit distracting (setup 1). Thanks for the video!
@fuadpalchayev7269
2 жыл бұрын
Thank you! Very informative👍
@jonathanheadley2729
2 жыл бұрын
the setups are really nice! excellent work.
@ArjanCodes
2 жыл бұрын
Thank you Jonathan!
@gshan994
2 жыл бұрын
I mostly use python for aws cdk. And for architectural diagrams i use plant uml diagrams.
@mahmudulhassan9043
2 жыл бұрын
Thank you very much . i love all of your tutorial . it helps me lot to improve my skill .
@Vdherrlichkeit
2 жыл бұрын
Again. Great content Arjan. Highly appreciated
@lungenbrötchen
2 жыл бұрын
Thank you for your videos. I learned a lot from them and I also like the entertainment factor of your videos.
@ArjanCodes
2 жыл бұрын
Thank you so much - glad to hear the videos are helpful to you!
@jimmyf.x.9526
Жыл бұрын
So amazing I want to use the f word! Fantastic!!!
@wowzers94
2 жыл бұрын
I dig the new set! And thanks as always for the python tips!
@anhnguyenuc6543
2 жыл бұрын
Thanks for your video. That's really what I needed
@Hubert4515
2 жыл бұрын
we love the new setup! :D
@ArjanCodes
2 жыл бұрын
Thanks!
@TehCannonMan
2 жыл бұрын
Wasn't able to replicate this example using python 3.10.4, for some reason TypeError: dataclass() got an unexpected keyword argument 'slots' and TypeError: unsupported operand type(s) for |: 'type' and 'type' ~ from the get_set_delete function
@SiarheiAkhramenia
26 күн бұрын
Hey, @ArjanCodes! Can you please explain why you use `partial` in your time measurements? From what I've found, using `partial` may save an overhead compared to `lambda`. Is this the purpose you used it here, in your code?
@robertbrummayer4908
2 жыл бұрын
Hi Arjan, great video! I also like your new setup. However, as also other commented, the audio seems to be worse than before.
@ArjanCodes
2 жыл бұрын
Thanks! The audio could indeed be better, still have to tweak the new setup a bit, but we’ll get there.
@shamaldesilva9533
2 жыл бұрын
Damnnnn that background 🤩👏👏👏
@ArjanCodes
2 жыл бұрын
Glad you like it!
@vlntsolo
Жыл бұрын
Thanks!
@ArjanCodes
Жыл бұрын
Thank you Valentyn, glad you liked it!
@valenciawalker6498
Жыл бұрын
Thank you
@jimboppin2461
2 жыл бұрын
great vids, just heads up new sound is a little boxy/tinny 👍
@grzegorzryznar5101
2 жыл бұрын
Hello Arjan. Could you tell about different way to implement class which inherits over employee and person? I agree that multiple inheritance may be bugggy, but how to solve that in a clean and efficient way?
@VileVillian
2 жыл бұрын
Answering as a sr dev here - try thinking in terms of composition instead of inheritance. Inheritance implies an "is a" relationship. A Square "is a" Shape. Composition implies a "has a" relationship. A vehicle "has a" steering wheel, brakes, and headlights. Its very rare that you will find yourself with the need to describe W "is a" X, Y, and Z. Hope this makes sense. There are others who can explain it way better - just search "prefer composition over inheritance" - it is a well-known axiom amongst experienced OO developers. Edit: As a nice side effect to using composition over inheritance, you'll find your unit tests easier to implement because you'll be in a good position to leverage dependency injection and provide mocks for the dependencies rather than having to mock any dependency chains of your parent class(es).
@callumfleming8662
2 жыл бұрын
Like number: 660 great video, didn't even know slots existed! thank you!
@rohanthorat4282
2 жыл бұрын
Hi I love your videos. Can I request a complete guide to multiprocessing in python Love from India
@ArjanCodes
2 жыл бұрын
Thank you for the suggestion! Glad to hear you enjoy the videos!
@johncongerton7046
10 ай бұрын
The best tutor of all
@ArjanCodes
10 ай бұрын
Thank you for the kind words, John!
@jfftck
2 жыл бұрын
I understand have normal classes defaulting to not using slots, but data classes should have that as the default.
@YaserAlraddadi
2 жыл бұрын
12:11 I do not think SQLAlchemy is using slots, it is using Tuples
@ahmadkhaled4751
2 жыл бұрын
Thank you Arjan for your brilliant content, I'm a fan of your Midlife-crisis looking thumbnails.
@castares
2 жыл бұрын
Good video, thank you for your content. But, shouldn’t you use mean instead of min when calculating performances? Those mins could be outliers
@martinkupke2099
2 жыл бұрын
4:17 ( __slots__ = "name", "address", "email" ) that's not a list. that's a tuple instead! That would be a list ( __slots__ = ["name", "address", "email"] )
@cryptosimon9529
2 жыл бұрын
great setup!
@makowiec2k
2 жыл бұрын
Hey ArjanCodes, is it true that the main reason for UML diagrams exists is to provide jobs in the tech industry for non-tech people like trainers/coaches etc.?
@MagnusAnand
2 жыл бұрын
Fantastic video!
@danzobisk2743
2 жыл бұрын
Hello any video about Python Guard clauses please
@SarcTiann
Жыл бұрын
excellent explanation
@ArjanCodes
Жыл бұрын
Glad it was helpful!
@karolszatkowski1343
5 ай бұрын
would you write vid about class attributes and instance attributes?
@jonathan3488
2 жыл бұрын
Hi, great video. Does this work the same for private and protected attributes?
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