5 Tips For Object-Oriented Programming Done Well - In Python

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Title	:	5 Tips For Object-Oriented Programming Done Well - In Python
Lasting	:	16.08
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Few people can write good software, even fewer object oriented software, and virtually zero can write good object oriented software
Comment from : Roger Isaksson

What I tend to do is when functional programming makes more sense I put all the functions into a class that kindof describes what the group of functions does and make them all static methods or class methods
Comment from : Ricardo Suarez del Valle

Thank you for making this video Great advice
Comment from : Chris M

An hour video on proper compositional hierarchy programming for GUIs using Qt would be awesome Great vids
Comment from : Three Legged Pig Studios

all the fancy stuff is for the masturbators - guys who will 'learn' new fancy stuff or programming language every 6 months, insist on using it for EVERYTHING and abandon it 12 months later 'because new shiny thing' and leave their code for other people to maintain
Comment from : YT feels like North Korea

Are you 46yo?
Comment from : Italo Buitron

Step 1: Dont use Python
Comment from : Hannes Baum

Arjan I know why you like to talk about payment: You are dutch! :D
Comment from : Labret

quality content
Comment from : Damian Games

Tip #2 is one of the most helpful pieces of advice i've come across Applying that thinking to my classes has made my projects way more organized
Comment from : Sam Leheny

The dependency injection topic was something new to me, so thank you!
Comment from : Bulelani Botman

The only one of these tips that irked me was the separation of "behaviour classes" and "data classes" This irked me because that is a very close to C-style way of thinking, that is: procedural programming Right now, I'm forced to use Java, and I see this style in the code that my predecessors wrote It is hell to maintain as they had a "dto" obsession Every time I see a "data class" that isn't there to act as a projection of your business models or as a helper class because your function needs to return a value comprised of heterogeneous items, I cringe and start to worry about the maintainability of the code Yes, OOP isn't perfect, and Java is probably the worst way to implement OOP (*cough*C++*cough*), it feels like you're fighting an uphill battle when you go against these OOP principles Sure, it's "easy" and gets you some quick velocity, but the technical debt you accrue is so damn high It's insane
Comment from : MarleyDX

Awesome tutorial
Comment from : Sherif Ahmed

ive been using classmethods as a way to lock down interfaces, rather than using config filesbrbrespecially when it comes to pipelines good idea or bad? how would one use class methods? are they a replacement for a singleton?
Comment from : Raven Echo

Mid level engineer here Binge watching your videos like its netflix Hands down some of the best programming content on youtube Thank you!
Comment from : Mista T

wow I loved every bit of this videofrom the introduction to the end, as a self taught software developer in the making vidoes like this helps a lot, I did not only like but i subscibedThank you
Comment from : Oluwabukola Owoeye

You either want to do something well OR you do it in python
Comment from : TsiGahn

Great video!
Comment from : Magnus Anand

This is a really good video Only thing I'd say I disagreed with is separating classes by data vs behavior In theory this sounds nice, but when I get into a larger project I almost always need some of my data focused classes to be able to do some various behaviors I think separating those out too much from each other could pose other problems All about balance though
Comment from : Jordan Mungo

code MUST be readable by humans first, has been my motto for years And what you're saying is along those lines The more I watch of your videos ,the more I like I'm trying to "bing" watch your videos but my head feels like it may explode 🙂 Keep up the good work
Comment from : Barry Kruyssen

Isn't the Point of Objekt oriented programming to combine Data and methods? So that the class can stay consistent for the Data?
Comment from : Kathi

algo boost comment thanks for all your help!
Comment from : Bikes

tip 2 doesn't make any sense in terms of OOP By definition an object has state and behaviour So when the author is suggesting to keep the two separate, he is just better organising procedural/functional style code and it does not apply for OOP
Comment from : balbir chahal

I have a question about tip 2 If its not recommended to combine data and behavior classes, wouldnt we be against whath POO proposes about attributes and methods?
Comment from : Miguel Vásquez

Modula-2!!! Kudos from a Pascal lover!
Comment from : edgeeffect

Thank you!
Comment from : D S

I can't believe your channel hit 100K+ subs I have learned a lot from you Arjan, thanks for all the quality videos (and free knowledge) You deserve more
Comment from : Neema Tsering

Can you do a vid on import handling?
Comment from : Noah Jones

Excellent video about how to make the code cleaner and neat Thanks a lot!
Comment from : Embru

Great video!
Comment from : DdOS

"Object oriented programming is stupid" You should've stopped the video there 😂
Comment from : Daniel

nice background
Comment from : Олег Чередниченко

Good stuff Separating data and behavior concerns is forward thinking Not being worried about strictly adhering to a design paradigm is so refreshing to hear; let's be practical! This is your best video, yet!
Comment from : Slacquer

I can see how Java gets a lot of heat for how things are done When I started studying computer science in 1999, no surprise, Java was all the rage Fortunately I had worked with Delphi before (a natural step up from my Turbo Pascal days in DOS), so I was able to tell apart what disadvantages are specific to Java and what to OOP in generalbrI have moved away to mostly working in C nowadays since I work as an embedded developer (never done C++), but I use Python for tools that make my life easier That's why I watch your videos When appropriate, I sometimes follow a semi-OOP approach in C, where I define a struct holding all data of that "object" and pass this (well, a pointer to it) to various functions that work on this data, much like the self parameter in an object's method in Python I even call the parameter "self" most of the time 😅
Comment from : Colaholiker

Wow 🤩 luckily I landed on this channel and loving it Gonna go through each of the videos , amazing way of teaching
Comment from : tir0__

I'm glad I found this channel
Comment from : Justice Selasi Yevoo

I'm making my way to senior and I would dare say you helped me a lot with getting to a whole different level of app design Thanks
Comment from : No Stromo

I enjoyed your video In your tip #2, it would be useful to add an explicit "Why you create separate data and behaviour classes" It sounds like you are transitioning to FP when you say that often the behaviour classes could be replaced by a module of functions Are you trying out any pure -FP languages?
Comment from : Carl Hunter-Roach

great tips Arjans
Comment from : Iraj

Its like arguing a hammer is always better than a screwdriver
Comment from : digiryde

O dear
Comment from : Programming with John

Thanks for sharing! What is the sound/track name at the end of the video ?
Comment from : ££l337

Thank You,brbrFrom the Functools to DataClassess and now blending (F and OOP)brbrI feel this could have been your 7 steps pdf for download, lolbrbrI had a question about assigning a index in lieu of self generated indexingbrbrThere are (Cluster, Multilevel, Sparse, Hash etc)brbrI have a establisd mathematical function I would like to use to assign a index to the database instead of building out table relationships brbrI believe your depth of understanding of how to remain scalable and dynamic in your approach to coding gives me a bit of confidence that I can do something along these lines brbrThank you for your valued insight in this field brbrMy question is how can we have a discussion ?brbrMy bread just came out of the toaster, and butter must be applied for the best Bread in the WORLD, lolbrbrPS also my thumbs are cramping from this texting I need to use VOIP more often
Comment from : Davis Rogers

About inheritance: One more usage of it is for making C/C++ classes integrate better in a Python program Depending on how the C/C++ side is implemented, inheriting from these, or creating a class to wrap around them, might actually benefit the simplicity and readability of your code
Comment from : Cheeba Digga

I like your explanations
Comment from : The TopShottah

as someone who uses python for over 2 years now This is a huge added value for a 16 mins video
Comment from : Adnane EL KASMI

I've worked in crazy spaghetti codebases, and architecture astronaut code mazes After those experiences, I love this practical, real-world advice Thank you
Comment from : Nitin Punjabi

I don't think functional alone is conductive to clean code How do you group functions? How do you initialize data in a group of functions that share some state or configs? How do you decouple the functions' contract from its implementation, etc
Comment from : Tea Bunz

This video has a lot of boilerplate footage
Comment from : Good luck America

Thanks, I used the dictionary as a collection of functions/objects a lot but until this video, I did not realize that enums as keys can work really nice
Comment from : oglop

Superb tips
Comment from : TechieGuy

Writing object oriented code well is basically a process of mostly avoiding object oriented programming
Comment from : Dino Dini

For dataclasses, why don't we just use dictionaries?
Comment from : Noël D

#1 - Don't use OOP and prosper
Comment from : Simon

This kind of insight is quite rare for a you tube video Really well delivered on a topic that should be discussed more! brbrKey takeaway is mostly that your chosen method of programming doesn’t have to be right or wrong Is it useful? Is it readable to others in the team? brbrGreat work!
Comment from : Ted Lerios

Arjan, I love all your videos You are a great teacher I know it's not the focus of your video, but can you tell us how you have your line numbering setup in VSCode?
Comment from : Jeffrey Ralston

Data classes have brought way more OOP to my code A series of transformations on an object with predefined values is way easier to track compared to a dictionary
Comment from : grant williams

Thank you! 🙏🏻
Comment from : Dawid Dahl

I really hate python
Comment from : nathan ruben

I did all your tips in my last refactoring and it's working wonders 😂 A sane combination of functional and oop is actually great for writing well-structured code without crazy side-effects! 😄brbrOne thing about turning behavior-oriented classes into raw functions: If you wanna do dependency injection and duck typing via protocols, it's really essential to represent your set of functions as a class because it's way more cohesive than passing each function separately (really helps readabity) And moreover something like attributes is necessary to store the handle to each dependency instance But for the rest of the video, I totally agree 😁
Comment from : Marco Tröster

tip numebr one: don’t do it brtip numebr two: there is none
Comment from : Rez

Basically all big and popular Python libs are written in a OO manner OO and "Pythonic" is not contradictory IMHO, who believes that simply is a programming novice and has never worked on any bigger project in RL And sure: you CAN go even further and do everything using functional programming But than again: in RL good luck finding enough staff familiar with that to the required degree OO is here to stay for many more years to come because it maps relations in a manner how we associate things in our brains Easy to learn, hard to master
Comment from : O

So you just use it how Rust is? Rust uses Structs for data and "Traits" for behavior Rust has no classes I do like to keep data and functionality separated in any kind of programming language Sometimes the data can have some kind of "interface" on top of it for lightweight functionality But even that interface or lightweight functions are mostly separated haha
Comment from : Aerism

this is quality content for senior devs; you're talking about abstract topics that matters on the big picture/decision making of big projects; I loved it, subscribed!
Comment from : Alberto Harres

I am confused what is the meaning of @dataclass and @property??
Comment from : zeki

Those look a lot more like procedures than functions to me
Comment from : Niall Tracey

Hey ArjanbrMaybe you'll consider making a tutorial about creating python packages with setuptools etc? :)
Comment from : D P

I noticed you sometimes use the UML class diagrams to explain some OOP patterns (eg adapter pattern) brI would love, if you would explain how to read those diagrams on some examples I can't follow them in other videos
Comment from : Lud Orb

Great topic indeed and looking forward for many such
Comment from : Swadhikar C

what is the -> operator?
Comment from : Will D

The point of classes is to group up related behavior and data together If you create a class just to store data, there are dictionaries for that If you want to group up functions, that's why we have imports and functions in single files
Comment from : Jorge Escobar

Classes to me are too repetitive and seems to nested, if that makes sense It’s on thing learning about students, and nr and subjects that fit into a class, and quite another to link duplicity name types with ’s
Comment from : Jacques Gerber

1 Tip For Object-Oriented Programming Done Well - don't do it in python ;)
Comment from : Ivaylo Bonev

Its not functional, its procedural
Comment from : Demid Druganov

Now this crack, is just unreal! Thanks for that ;)
Comment from : c greek

100 working THXs
Comment from : #FREEZILLA

OOP sucks balls
Comment from : Handsome_Hero

Amazing video Sir! Thank you very much for sharing your expertise with us! I always learn a lot from you!
Comment from : Paulo Henrique

Step one, forget about inheritance
Comment from : Marcus Rehn

You've failed at "object-oriented", there's no good way to run with a fridge strapped to your back xD
Comment from : Vincent Rodriguez

What the OP calls "functional" programming is actually procedural programming Writing stand alone functions does not mean you are using FP Full-blown FP is what languages like Haskell and F# do Python has limited FP capabilities
Comment from : nccamsc

you can use ide to navigate embedded classes, interfaces or abstract classes
Comment from : sick000fight

Rocking that shirt! And as always concise and wonderful video
Comment from : Abhishek Srivastava

Simply don’t do it python wasn’t made for it and it’s only there because it didn’t have structures
Comment from : Platin 21

Here is your first tip abandon Python and use a real object oriented language Be definition, having to pass a reference to the class to each member of the class IS NOT object oriented It is just dependency injection There is no multiple inheritance (or inheritance at all to be honest), againdependency injection Python does not support actual polymorphism, at best it supports a weak version of overloading, but that really isn't the same thing
Comment from : Andrew Erwin

One thing I don't understand is why you see so rarely these tips applied, even in the python standard libary One recent exemple is the pathlib library It does everything you advise against like multiple inherentences and even the use of the fency i_new_/i to create an os dependant path instance So is it worth using this style of coding when not many people seem to use it ?
Comment from : firefouuu

This guy does create a lot of object oriented code, sometimes importing a couple of functions in a python script is all you need
Comment from : DistortedV12

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Comment from : ananda putra doneva

OOP can be done well? what? WHAT? I've always thinked that the right way to do OOP is ditch it and use Procedural
Comment from : Prag & Senss diary

Best channel of advanced python OOP thanks!
Comment from : RiptorForever

With all due respect, the first example is not a combination of FP and OOP Here's an exemplification: "2" is an object in Python, and print() is a function But when we write "print(2 + 2)" we don't "combine FP and OOP" It is just old good imperative codebrbrWhen we put imperative code into a function, we don't do "functional programming" just because of that Functional programming is a quite special thing: it's a programming via function composition Likewise, when we put our code into a method, this doesn't make our code object-oriented OOP assumes certain specific principles (encapsulation, inheritance, polymorphism), without them it's all just using classes as C-like data structures
Comment from : Виталий Сергеев

thanks for the tips
Comment from : hg

you're using a wrong definition of functional programming It has nothing to do with using objects or not What you mean are stand-alone functions
Comment from : Alex D