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

  Рет қаралды 845,052

Corey Schafer

Corey Schafer

Күн бұрын

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:
github.com/CoreyMSchafer/code...
✅ Support My Channel Through Patreon:
/ coreyms
✅ Become a Channel Member:
/ @coreyms
✅ One-Time Contribution Through PayPal:
goo.gl/649HFY
✅ Cryptocurrency Donations:
Bitcoin Wallet - 3MPH8oY2EAgbLVy7RBMinwcBntggi7qeG3
Ethereum Wallet - 0x151649418616068fB46C3598083817101d3bCD33
Litecoin Wallet - MPvEBY5fxGkmPQgocfJbxP6EmTo5UUXMot
✅ Corey's Public Amazon Wishlist
a.co/inIyro1
✅ Equipment I Use and Books I Recommend:
www.amazon.com/shop/coreyschafer
▶️ You Can Find Me On:
My Website - coreyms.com/
My Second Channel - / coreymschafer
Facebook - / coreymschafer
Twitter - / coreymschafer
Instagram - / coreymschafer
#Python

Пікірлер: 526
@kickbuttowsk2i
@kickbuttowsk2i 4 жыл бұрын
the amount of 'aha' moment in this series is unimaginable.
@plato5138
@plato5138 3 жыл бұрын
@Tomas Alvaro Stop with those spam comments
@sndselecta
@sndselecta 3 жыл бұрын
Hilarious.
@MTSNSri
@MTSNSri 2 жыл бұрын
@@sndselecta L
@timothywyatt722
@timothywyatt722 2 жыл бұрын
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
@randallbilly1122 2 жыл бұрын
@Timothy Wyatt instablaster =)
@ryanthornton3556
@ryanthornton3556 Жыл бұрын
6 years later and this is still invaluable
@nasifshah5691
@nasifshah5691 2 ай бұрын
7*
@garydunken7934
@garydunken7934 7 жыл бұрын
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
@effuseakay 5 жыл бұрын
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
@madagascar9407 4 жыл бұрын
@@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
@nicop175 4 жыл бұрын
That's why Corey puts a video per month or so, buuut they are so good.
@ildar_eto_ya
@ildar_eto_ya 4 жыл бұрын
Aaaaaahhhyeeeeeeeaaahhhhh!
@rajaspydey
@rajaspydey 3 жыл бұрын
Just like CS50. PLAIN & SIMPLE
@andresvodopivec5950
@andresvodopivec5950 5 жыл бұрын
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
@coreyms 5 жыл бұрын
Thanks!
@mosesmbabaali9381
@mosesmbabaali9381 4 жыл бұрын
@@coreyms your a rock star!!! Good stuff.
@christianfuchs9405
@christianfuchs9405 6 жыл бұрын
best python tutorials on youtube. period.
@nelsongg347
@nelsongg347 5 жыл бұрын
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
@betulabendula6270 7 жыл бұрын
These OOP tutorials are worth gold! They make difficult subject to look so easy!
@GodsNode
@GodsNode 6 жыл бұрын
You are like the Khan Academy of Python code. Great explanations and examples.
@ankurjain5286
@ankurjain5286 8 жыл бұрын
@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.
@Mrjarnould
@Mrjarnould 8 жыл бұрын
Keep up the Python OOP tutorial, they're great!
@xiaolu7988
@xiaolu7988 5 жыл бұрын
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!
@seymoreclearly
@seymoreclearly 5 жыл бұрын
So clear, concise, and precise. Best Python tutorials I have yet come across on KZbin
@L0V3V4MP1R3
@L0V3V4MP1R3 4 жыл бұрын
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! ♥
@navroze92
@navroze92 5 жыл бұрын
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.
@baterickpatman
@baterickpatman Жыл бұрын
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
@mrmabb123
@mrmabb123 5 жыл бұрын
I finally feel I have a complete picture on Python basics despite already learning it for 4 months. Thanks.
@raghavnegi713
@raghavnegi713 3 жыл бұрын
Same with me
@sueholder703
@sueholder703 4 жыл бұрын
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
@coreyms 4 жыл бұрын
Thanks!
@NicholasKimble
@NicholasKimble 4 жыл бұрын
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!
@Sjongleringsmannen
@Sjongleringsmannen 5 жыл бұрын
Great series of tutorials on OOP! I really love them. Very clear and with a speedy pace!
@calistosmindfulsoundsofnature
@calistosmindfulsoundsofnature Жыл бұрын
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!!
@bobboulden
@bobboulden 3 жыл бұрын
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.
@pipertripp
@pipertripp 5 жыл бұрын
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!
@Caffeinegoesinface
@Caffeinegoesinface 7 жыл бұрын
you kick ass! This has been invaluable to a university project I'm working on at the moment Thanks!
@artmcclure637
@artmcclure637 7 жыл бұрын
Finally, I understand Classes. Thank you!
@cipher6042
@cipher6042 4 жыл бұрын
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!
@returnedfaith7254
@returnedfaith7254 6 жыл бұрын
Your tutorials take into depth, which is something others of same kind never did. I'm lucky finding you.
@tanmayag97
@tanmayag97 4 жыл бұрын
Probably the best tutorial of OOPS in the world. 👌
@yuanfeilin4822
@yuanfeilin4822 4 жыл бұрын
So dunder is the abbreviation of double underscores!:-)
@l0remipsum991
@l0remipsum991 3 жыл бұрын
__ = double underscores = dunder
@JS-ni7ly
@JS-ni7ly 3 жыл бұрын
double underscores Mifflin this is Pam speaking...
@billcallahan218
@billcallahan218 7 ай бұрын
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!!
@kamolusmonov6540
@kamolusmonov6540 5 жыл бұрын
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.
@JeremyFisher
@JeremyFisher 4 жыл бұрын
You don't know how much we appreciate your work here Corey, best way of teaching and a good soul, we love you.
@gershondevadason4656
@gershondevadason4656 2 жыл бұрын
Exactly what I needed. Clear, comprehensive and great examples! Nice work man!
@charlesfoster2644
@charlesfoster2644 6 жыл бұрын
HUGE "ah-hah" moments going on here for me anyway. THANK YOU SIR!!!!
@KnightShade227
@KnightShade227 4 жыл бұрын
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
@CharlesDibsdale 7 жыл бұрын
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.
@antonkamnev2067
@antonkamnev2067 2 ай бұрын
My eyes have finally opened to so many things in python! Thanks!
@user-qu2zc4rp9v
@user-qu2zc4rp9v 6 жыл бұрын
Questions are sophisticated but your answers are simple. Great respect and hundreds years of happiness!
@yahyakenoussi577
@yahyakenoussi577 3 жыл бұрын
No explanation can be better than what you did during the whole playlist. Thanks.
@anonymous_anonymity
@anonymous_anonymity 5 жыл бұрын
One of the best python tutorials I’ve ever seen
@user-mj1lu4cl1j
@user-mj1lu4cl1j Жыл бұрын
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.. :)
@Asparuh.Emilov
@Asparuh.Emilov Жыл бұрын
You are by far, the most absolute best Python Teacher out there! Thank you soooooo much for being the best! ♥️♥️♥️♥️♥️
@RRatedT
@RRatedT 4 жыл бұрын
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 !
@jamessmith732
@jamessmith732 4 жыл бұрын
Exceptionally well, such organized Tutorials are intellectual assets that are really devoted free to learner community.
@dustinhxc
@dustinhxc Жыл бұрын
Wow changing what it displays is priceless. Thank you for the Dunder explanation!
@dozieu8539
@dozieu8539 3 жыл бұрын
Communication is so human and yet so otherworldy, thanks Corey
@sreekanththota2200
@sreekanththota2200 4 жыл бұрын
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
@dpynsnyl
@dpynsnyl 4 жыл бұрын
I am an avid follower of your tutorials from the day KZbin 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!
@christydiness6200
@christydiness6200 5 жыл бұрын
That's a crystal clear explanation Corey....Really helpful
@23TrevorE
@23TrevorE 7 жыл бұрын
Yet another brilliant tutorial, Corey. Many thanks.
@djkunsal
@djkunsal 5 жыл бұрын
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
@DShawnPaytonOffiicial
@DShawnPaytonOffiicial Жыл бұрын
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.
@atulpanthri4729
@atulpanthri4729 3 жыл бұрын
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
@BANDITRY-MUSIC
@BANDITRY-MUSIC 7 жыл бұрын
Very useful tutorials! The pace and info is spot on and invaluable to me. Thank you!
@zes7215
@zes7215 5 жыл бұрын
ts not interesx or intimidax, no intimidax for such or anyx. diffix doesnt matter
@cysage5876
@cysage5876 3 жыл бұрын
You just opened a whole new page of programming to me. Before this I didn’t fully understand oop. Thank you 👍
@monagulapa3022
@monagulapa3022 4 жыл бұрын
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 ! 🙂)
@xiaolu7988
@xiaolu7988 5 жыл бұрын
Really clear and insightful explanations. Love it!
@antonisvenianakis1047
@antonisvenianakis1047 2 жыл бұрын
Thank you. Everyone is right here at the comments saying how good your videos are. I can only be grateful
@instamusic7918
@instamusic7918 3 жыл бұрын
One of the best python program langauge channel on youtube, Thanks brother from India.
@venkysmoments9155
@venkysmoments9155 7 жыл бұрын
@corey - Your way of explaining the concepts are too good. Keep continue your work.Love your teaching skills. Kudos to you.
@Burgturdler2
@Burgturdler2 Жыл бұрын
Dude, you're awesome. Been binging your videos and they are helping a bunch. Excellent teaching ability!
@nit235
@nit235 3 жыл бұрын
We have to create another class to remove from KZbin 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.
@clearair
@clearair 6 жыл бұрын
Really amazing content Corey - really useful detail presented a brisk pace. Thanks so much!
@Jeganbaskaran
@Jeganbaskaran 7 жыл бұрын
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.
@uptopaviation
@uptopaviation 2 жыл бұрын
Each and every one of your videos is amazing. Thanks for the great content!
@Khushpich
@Khushpich 4 жыл бұрын
Great tutorial, straight to the point. Thanks Corey!
@vladn.2332
@vladn.2332 6 жыл бұрын
Thank you for your videos, Corey! It really helped me better understand how to work with classes in Python :)
@TheSoftwareServices
@TheSoftwareServices 2 жыл бұрын
Really Awesome, Amazing flow of wording and content presentation. Thank you very much Schafer.
@kamalakannank3370
@kamalakannank3370 2 жыл бұрын
One of best explanation learning video to understand class and object
@TriStrideDad
@TriStrideDad 4 жыл бұрын
Absolutely recommended video. Crisp and Clear
@biswajitpaul3843
@biswajitpaul3843 7 жыл бұрын
All your videos are very useful. Keep it up.
@bhaskargarai8371
@bhaskargarai8371 4 жыл бұрын
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....
@muhammadhassan5428
@muhammadhassan5428 2 жыл бұрын
You deliver the best explanations and clear presentations.
@vm7240
@vm7240 Жыл бұрын
Thanks a bunch! Your videos are to the point, concise and yet, very well explained.
@misterjaypeasmith
@misterjaypeasmith 4 жыл бұрын
You make learning Python really enjoyable Corey 🙌🏽
@josephmwangi1951
@josephmwangi1951 5 жыл бұрын
My code was crap before this series. But its a good thing, makes me appreciate everything you're teaching here. Thank you
@Dynamic.32
@Dynamic.32 11 ай бұрын
Great tutorial, it's rare to see tutorials demonstrate how it's implemented on real modules
@Fourty_7
@Fourty_7 5 жыл бұрын
Thnx for the video Corey, now i can understand the special methods a little bit
@bhunakitchantaraseno7809
@bhunakitchantaraseno7809 4 жыл бұрын
great tutorial! I built my first app learning from your videos. Thank you!
@ramychaari2567
@ramychaari2567 3 жыл бұрын
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 👍
@aman0509
@aman0509 4 жыл бұрын
You are great man!! You have helped me a lot in understanding many Python Concepts.
@viniciuspantoja1979
@viniciuspantoja1979 4 жыл бұрын
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!!
@kakkaladeepak632
@kakkaladeepak632 Жыл бұрын
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
@Allomerus
@Allomerus 5 жыл бұрын
Excellent explanation Corey. Thanks for sharing this!
@sebastianpanea652
@sebastianpanea652 5 жыл бұрын
It really helped me :) ... I thought I can't understand this topic but you made It clear
@ankursrivastava2112
@ankursrivastava2112 6 жыл бұрын
Awesome tutorial.. superbly described oops concept... thanku very much..
@explorer9782
@explorer9782 4 жыл бұрын
Great Videos from you, You are helping many python newbies. please continue further with new python videos.
@pratyush_sahoo
@pratyush_sahoo 2 жыл бұрын
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.
@thangarajr9905
@thangarajr9905 3 ай бұрын
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
@dixonstroi
@dixonstroi 3 жыл бұрын
another great tutorial. really helping to tie together learning from text tutorials and excercises.
@ctianlong82
@ctianlong82 3 жыл бұрын
Thank you, sir. Your video really helps me to have a better understanding of the special methods.
@loganinn3940
@loganinn3940 4 жыл бұрын
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.
@eishanr
@eishanr 6 жыл бұрын
@corey you're the reason I know what Oops is! Amazing work sir..
@yingjianhuang9030
@yingjianhuang9030 2 жыл бұрын
Thanks for video, I was so confused about these magic methods previously.
@brunesi
@brunesi 11 ай бұрын
I almost went researching if by any chance Dunder had another meaning than a name of a former owner of a Northeast Pennsylvannia paper company, but that's just 'Double UNDERscores'. Amazing.
@kibuzz3258
@kibuzz3258 Жыл бұрын
your python tutorials are greatest, thank you so much!
@szabikrdev5066
@szabikrdev5066 2 жыл бұрын
Really clean explanation. Thank you soo much!
@gayatriborade9556
@gayatriborade9556 2 жыл бұрын
Your way of explaining is very nice and understandable. Thank you so much sir 😊
@MrI7asson
@MrI7asson 4 жыл бұрын
Great video as usual, explaining the data model in Python, Thank you so much.
@ragavsathis
@ragavsathis 5 жыл бұрын
excellent video- crisp points and ex. thanks very much
@depressedknight369
@depressedknight369 4 жыл бұрын
daamnnnn, wow this video was specifically very informative and full of some deep stuffs... thanks....
Python OOP Tutorial 4: Inheritance - Creating Subclasses
19:40
Corey Schafer
Рет қаралды 1,3 МЛН
NERF WAR HEAVY: Drone Battle!
00:30
MacDannyGun
Рет қаралды 44 МЛН
Жайдарман | Туған күн 2024 | Алматы
2:22:55
Jaidarman OFFICIAL / JCI
Рет қаралды 1,6 МЛН
THEY made a RAINBOW M&M 🤩😳 LeoNata family #shorts
00:49
LeoNata Family
Рет қаралды 18 МЛН
5 Good Python Habits
17:35
Indently
Рет қаралды 408 М.
Every Python dev falls for this (name mangling)
14:11
mCoding
Рет қаралды 136 М.
Pydantic Tutorial • Solving Python's Biggest Problem
11:07
pixegami
Рет қаралды 247 М.
5 Useful F-String Tricks In Python
10:02
Indently
Рет қаралды 271 М.
Python OOP Tutorial 1: Classes and Instances
15:24
Corey Schafer
Рет қаралды 4,4 МЛН
Python 101: Learn the 5 Must-Know Concepts
20:00
Tech With Tim
Рет қаралды 1,1 МЛН