Python OOP Tutorial 5: Special (Magic/Dunder) Methods

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In this Python Object-Oriented Tutorial, we will be learning about special methods. These are also called magic or dunder methods. These methods allow us to emulate built-in types or implement operator overloading. These can be extremely powerful if used correctly. We will start by writing a few special methods of our own and then look at how some of them are used in the Standard Library. Let's get started.
Python Docs: docs.python.org/3/reference/d...
Python OOP 1 - Classes and Instances - • Python OOP Tutorial 1:...
Python OOP 2 - Class Variables - • Python OOP Tutorial 2:...
Python OOP 3 - Classmethods and Staticmethods - • Python OOP Tutorial 3:...
Python OOP 4 - Inheritance - • Python OOP Tutorial 4:...
Python OOP 5 - Special (Magic/Dunder) Methods - • Python OOP Tutorial 5:...
Python OOP 6 - Property Decorators - • Python OOP Tutorial 6:...
The code from this video can be found at:
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12 июн 2024

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Комментарии : 527

@kickbuttowsk2i 4 года назад

the amount of 'aha' moment in this series is unimaginable.

@plato5138 3 года назад

@Tomas Alvaro Stop with those spam comments

@sndselecta 3 года назад

Hilarious.

@MTSNSri 2 года назад

@@sndselecta L

@timothywyatt722 2 года назад

Sorry to be off topic but does any of you know of a tool to log back into an Instagram account? I stupidly lost the password. I love any tips you can give me

@randallbilly1122 2 года назад

@Timothy Wyatt instablaster =)

@ryanthornton3556 Год назад

6 years later and this is still invaluable

@nasifshah5691 Месяц назад

@garydunken7934 7 лет назад

What I like about your videos is that there's no emming, erring or dribbling of words. Well planned and execution of tutorial; nice clear, crisp flow and sticking to point really well. Excellent. Please keep them coming.

@effuseakay 5 лет назад

I agree. I can see you put a lot of work into planning your videos. There is barely any typos, everything is crystal clear with examples, etc. Seriously thank you so much!

@madagascar9407 4 года назад

@@effuseakay do you think he is cutting his videos and looking up what to say next? It seems like he does everything out of memory spontaneously, but perfectly fine

@nicop175 4 года назад

That's why Corey puts a video per month or so, buuut they are so good.

@ildar_eto_ya 4 года назад

Aaaaaahhhyeeeeeeeaaahhhhh!

@rajaspydey 3 года назад

Just like CS50. PLAIN & SIMPLE

@andresvodopivec5950 5 лет назад

Normally I never comment but really have to say tow things: thanks so much for the tutorial and by far the best and flawless (material and speech) python tutorial ever seen. Nice talent Corey!

@coreyms 5 лет назад

Thanks!

@mosesmbabaali9381 4 года назад

@@coreyms your a rock star!!! Good stuff.

@christianfuchs9405 6 лет назад

best python tutorials on youtube. period.

@baterickpatman Год назад

DUDE you're the fkn MAN.. been following this series and everything about your presentation is SO great. Thank you so much :) I will be donating

@nelsongg347 5 лет назад

I started with Python from two weeks ago I come from Php and Java so I have a good understanding of Classes and Objects, but I have to tell you that the way you present every topic is magistral. Thank you very much for your flawless tutorial. And the extra for me is that your tutorials are also an English class.

@betulabendula6270 7 лет назад

These OOP tutorials are worth gold! They make difficult subject to look so easy!

@GodsNode 6 лет назад

You are like the Khan Academy of Python code. Great explanations and examples.

@NicholasKimble 4 года назад

Who is down voting your videos? You are a master and clearly demonstrate your command of this language by how easily you simplify these concepts for me. Thank you, good sir!

@xiaolu7988 5 лет назад

My favorite part of your tutorials is that you give a great great example come from standard or well-known library to show us what those skills are used in dealing with real-world programming issues. A hundred thumb-ups!

@L0V3V4MP1R3 4 года назад

I had an ungodly amount of trouble understanding OOP in general and I think that in the middle of many other tutorials, yours were the first that I could finally understand and keep up with without getting lost halfway through the lecture. Thank you so much, keep the wonderful content coming! ♥

@Mrjarnould 7 лет назад

Keep up the Python OOP tutorial, they're great!

@seymoreclearly 5 лет назад

So clear, concise, and precise. Best Python tutorials I have yet come across on RU-vid

@ankurjain5286 7 лет назад

@Corey - You are an excellent teacher and know exactly how to tell/teach about any topic. I have seen all of your videos and learnt a lot by watching these tutorials. Can you please upload some videos on some of the python concepts like - Multiprocessing, Design patterns, MetaClasses as well.

@bobboulden 3 года назад

These videos are such a lifesaver for me. Gives me actual understanding instead of me just stumbling along, not knowing what I'm really doing.

@sueholder703 4 года назад

I have just spent the day going through this series as I am studying and needed to understand this concept better. Your series has been superb and I'm so thankful. Thank you for sharing your extensive knowledge in a way that is clear and easy to understand. When I am working I will support through Patreon to pay it forward so you keep on making them. I am going to watch many more of your videos from here on, I am sure.

@coreyms 4 года назад

Thanks!

@tanmayag97 3 года назад

Probably the best tutorial of OOPS in the world. 👌

@navroze92 5 лет назад

You Sir need a million subs just for teaching this one episode. So clean and precise!! Thank you for the work you put in we really appreciate it.

@mrmabb123 5 лет назад

I finally feel I have a complete picture on Python basics despite already learning it for 4 months. Thanks.

@raghavnegi713 3 года назад

Same with me

@antonkamnev2067 2 месяца назад

My eyes have finally opened to so many things in python! Thanks!

@calistosmindfulsoundsofnature Год назад

This video specifically has opened some doors for me in understanding classes and special methods used inside algorithms. Always learning something new each day on my coding journey!!! It never stops and I love it!!

@Sjongleringsmannen 5 лет назад

Great series of tutorials on OOP! I really love them. Very clear and with a speedy pace!

@returnedfaith7254 6 лет назад

Your tutorials take into depth, which is something others of same kind never did. I'm lucky finding you.

@monagulapa3022 4 года назад

When I was self studying C# because my job needed it, I hardly grasped the concept of OOP because coding it in C# to see how it actually works is complicated. With your explanation, I saw the clear and complete picture of OOP. Maraming Salamat ! (Thank you so much ! 🙂)

@instamusic7918 3 года назад

One of the best python program langauge channel on youtube, Thanks brother from India.

@artmcclure637 7 лет назад

Finally, I understand Classes. Thank you!

@Caffeinegoesinface 7 лет назад

you kick ass! This has been invaluable to a university project I'm working on at the moment Thanks!

@pipertripp 5 лет назад

This was a great video. I've been curious about operator overrides in python for a little bit. Blundered into the answers in this video and within 30 minutes had a working Vector class from scratch that handles all the basics. Thanks much for the really excellent content on your channel. I have to echo the other folks who point out how well you present the information. Well done!

@JeremyFisher 4 года назад

You don't know how much we appreciate your work here Corey, best way of teaching and a good soul, we love you.

@user-mj1lu4cl1j Год назад

If I ever had a any doubts on python I would look no further than your playlist. I recommend people to refer your videos first because it's no time-wasting around and just pure content.. Plus hat's off to your clear and concise language with in depth knowledge and a perfect pace while explaining.. Keep up the great work.. You are flamboyant God bless you Corey.. :)

@billcallahan218 6 месяцев назад

Boy am I glad I found this tutorial. II was over my head on OOP. Can't believe how much I've learned in just 5 videos. Right on Corey!!

@gershondevadason4656 2 года назад

Exactly what I needed. Clear, comprehensive and great examples! Nice work man!

@cipher6042 4 года назад

Ive been watching your videos and they have already helped me in my Job as a Site Reliability Engineer to write better python code, you have also helped me understand concepts that I haven't truly understood for the years Ive been in software development. Thank you for your great explanations. You definitely are making a great difference in peoples lives. Keep on Keeping on!

@nit235 3 года назад

We have to create another class to remove from RU-vid those who watched this video but didn't thank Corey. Thank you a lot Corey ! I'm a beginner not only in python, but in all programming languages , but I understood your teaching very well.

@antonisvenianakis1047 2 года назад

Thank you. Everyone is right here at the comments saying how good your videos are. I can only be grateful

@sreekanththota2200 3 года назад

Mr.Corey, You did magic with OOP....really...it's very informative....THE BEST PYTHON series..... I never Watched........Thanks...a lot...& also do more on Machine learning and Datascience with Python

@anonymous_anonymity 4 года назад

One of the best python tutorials I’ve ever seen

@dozieu8539 3 года назад

Communication is so human and yet so otherworldy, thanks Corey

@user-qu2zc4rp9v 6 лет назад

Questions are sophisticated but your answers are simple. Great respect and hundreds years of happiness!

@kamalakannank3370 2 года назад

One of best explanation learning video to understand class and object

@kamolusmonov6540 5 лет назад

First, I must say huge thanks ) I'm so impressed by your videos and have been learning through them, and I watch your channel pretty much every day.

@Asparuh.Emilov Год назад

You are by far, the most absolute best Python Teacher out there! Thank you soooooo much for being the best! ♥️♥️♥️♥️♥️

@dpynsnyl 4 года назад

I am an avid follower of your tutorials from the day RU-vid recommend me your ___name___ video. I loved it and got hooked to your style of teaching. Today when I got stuck at a problem in Hackerrank, I *Coreyed* the problem (fancy term for Googled when it comes to Python) and voila there it is; the video I wanted! Viel Danke Corey!

@yahyakenoussi577 3 года назад

No explanation can be better than what you did during the whole playlist. Thanks.

@dustinhxc Год назад

Wow changing what it displays is priceless. Thank you for the Dunder explanation!

@KnightShade227 4 года назад

been playing around with code trying to learn and I've just watched the four previous videos on classes, they're the one thing I've had issues with during my year of coding so far, and your videos helped me figure out how to incorporate them into my lil pygame, so thanks! good job breaking them down and explaining each part of them! I'll finish this one tomorrow morning 😁

@CharlesDibsdale 7 лет назад

Corey, thanks for your tutorials, you are clear to the point, and avoid waffle. The dunder methods are helping me debug my app much more efficiently.

@jamessmith732 4 года назад

Exceptionally well, such organized Tutorials are intellectual assets that are really devoted free to learner community.

@charlesfoster2644 6 лет назад

HUGE "ah-hah" moments going on here for me anyway. THANK YOU SIR!!!!

@cysage5876 3 года назад

You just opened a whole new page of programming to me. Before this I didn’t fully understand oop. Thank you 👍

@xiaolu7988 5 лет назад

Really clear and insightful explanations. Love it!

@christydiness6200 5 лет назад

That's a crystal clear explanation Corey....Really helpful

@23TrevorE 7 лет назад

Yet another brilliant tutorial, Corey. Many thanks.

@BANDITRY69 7 лет назад

Very useful tutorials! The pace and info is spot on and invaluable to me. Thank you!

@zes7215 5 лет назад

ts not interesx or intimidax, no intimidax for such or anyx. diffix doesnt matter

@yuanfeilin4822 4 года назад

So dunder is the abbreviation of double underscores!:-)

@l0remipsum991 3 года назад

__ = double underscores = dunder

@JS-ni7ly 3 года назад

double underscores Mifflin this is Pam speaking...

@muhammadhassan5428 2 года назад

You deliver the best explanations and clear presentations.

@TriStrideDad 4 года назад

Absolutely recommended video. Crisp and Clear

@atulpanthri4729 3 года назад

You have very deep understanding of python, teaching and choosing examples. Its really hard to understand where general student fail and get frustrated and you know this all. Thanks a lot Sir

@RRatedT 4 года назад

I love your videos man, seriously I don't get it why in college they don't explain it like you do- I just understood a lot about Python thanks to you. I'm dead serious I was frustrated I didn't got it right, thank you very much for sharing your knowledge !

@djkunsal 5 лет назад

Thank you for this awesome set of tutorials. I came in from the PHP world and your explanations gave me a headsup to Python OOP

@Khushpich 4 года назад

Great tutorial, straight to the point. Thanks Corey!

@uptopaviation 2 года назад

Each and every one of your videos is amazing. Thanks for the great content!

@vm7240 Год назад

Thanks a bunch! Your videos are to the point, concise and yet, very well explained.

@szabikrdev5066 2 года назад

Really clean explanation. Thank you soo much!

@kibuzz3258 Год назад

your python tutorials are greatest, thank you so much!

@pratyush_sahoo 2 года назад

This is my second or third comment in youtube after using it for 10years. Corey your plan and excution is superb, and it helped to learn a lot.

@DShawnPaytonOffiicial Год назад

I just want to say, your videos are excellent. You provide a clear explaination of everything. Thank you. I was having issues with __repr__ and __str__ until I realized that I was putting them in the wrong class. Hopefully this will help anyone else having similar issues.

@loganinn3940 4 года назад

I watch this on June 29, 2020, and now I understand why you need __add/len/str/repr__ in a class. Best 30 minutes of time spent on learn and taking note.

@Burgturdler2 Год назад

Dude, you're awesome. Been binging your videos and they are helping a bunch. Excellent teaching ability!

@thangarajr9905 2 месяца назад

whoo.. aha... Your videos, explanation, examples all are just amazing.... What can i say... Man, you are great teacher... full of Knowledge every millisecond of it

@clearair 6 лет назад

Really amazing content Corey - really useful detail presented a brisk pace. Thanks so much!

@ankursrivastava2112 5 лет назад

Awesome tutorial.. superbly described oops concept... thanku very much..

@bhunakitchantaraseno7809 4 года назад

great tutorial! I built my first app learning from your videos. Thank you!

@biswajitpaul3843 7 лет назад

All your videos are very useful. Keep it up.

@aman0509 4 года назад

You are great man!! You have helped me a lot in understanding many Python Concepts.

@ramychaari2567 3 года назад

Another interesting fact is that print() calls the method __str__() automatically (or __repr__() if __str__() doesn’t exist) in other terms print(emp_1.__str__()) is the same as print(emp_1) Very good explanation I love your tutorials 👍

@TheSoftwareServices 2 года назад

Really Awesome, Amazing flow of wording and content presentation. Thank you very much Schafer.

@kakkaladeepak632 Год назад

i really like ur tutorial i completely watched 4 vedios and 2 remaining i will do some practice questions and watch the remaining 2 vedios love from India Andhra Pradesh Vizag

@bhaskargarai8371 3 года назад

This guide helped me a lot....Showing appropriate examples for the methods...especially this one,and not only clear concepts,but also the way to make something understand is excellent....great job....

@yingjianhuang9030 2 года назад

Thanks for video, I was so confused about these magic methods previously.

@viniciuspantoja1979 4 года назад

although I don't have a very advanced level of understanding of the English language, these tutorials are better than anyone in Portuguese, man, your tutorials are amazing, thanks so much!!

@vladn.2332 6 лет назад

Thank you for your videos, Corey! It really helped me better understand how to work with classes in Python :)

@Fourty_7 5 лет назад

Thnx for the video Corey, now i can understand the special methods a little bit

@Dynamic.32 11 месяцев назад

Great tutorial, it's rare to see tutorials demonstrate how it's implemented on real modules

@ctianlong82 3 года назад

Thank you, sir. Your video really helps me to have a better understanding of the special methods.

@venkysmoments9155 7 лет назад

@corey - Your way of explaining the concepts are too good. Keep continue your work.Love your teaching skills. Kudos to you.

@mokodo_ 4 года назад

best python tutorials on youtube. thanks!

@ragavsathis 5 лет назад

excellent video- crisp points and ex. thanks very much

@misterjaypeasmith 4 года назад

You make learning Python really enjoyable Corey 🙌🏽

@Jeganbaskaran 7 лет назад

Simply amazing!! The way you are representing anyone who can learn easily, I came from different language background and i can easily compare it the way you explained. Thanks for your videos. Keep it up.