Python OOP Tutorial 1: Classes and Instances

[@prashanthib4488]

Tears from my eyes when I finally understood what "self" keyword here is all about. Thank You!!

[@kristypolymath1359]

Mirrors are miracles :D

[@muhammadmuinmundzir9981]

Same here lol

[@Thenpakkam_Manibalan]

Love from Chennai ❤️👌👍

[@netstatgrep]

Tears from my dong idk what's wrong

[@madhubabukencha5037]

Same feeling

[@kerwinso]

In my 3 years of trying to learn object-oriented Python, not a single teacher adequately explained what the "self" keyword was for -- until now. Thank you again Mr. Schafer!

[@oc4026]

If it's taken you three years, I'd just stop trying tbf.

[@forgandorgan7552]

dude 3years??

[@sebastianskopek]

im so happy I watched this video 2 weeks in :)

[@jadedaniels5076]

One tutorial I used said "We'll explain this concept later" and just never addressed it again

[@copyrightedchannel4939]

3 yrs 😆

[@keenzeen]

I have just started OOPs and every other videos I have watched , they were like “you have to use self, it is just the way”. Only u explained why it is there and for curious beginner that is very important.❤

[@sagnikkayal782]

exactly

[@MrCmon113]

It's there because the python inventors are weird like that. It could simply be a keyword like in Java. Then it would be: def set_first(first): self.first = first

[@felipeporto2758]

Not all heros wear capes. Corey you are the man!

[@theweirdpartofyoutube8662]

NO CAPES!

[@sarthak0diwan]

maybe he wears a cape, we haven't seen the guy.

[@Jonathan-od5xc]

That was the most fantastic explanation of classes I have ever seen. Thank you very much!

[@ashfaqrahman2795]

He actually wears a cape when he works. Also when he sleeps.

[@786Inferno]

did you just assume that he doesnt wear a cape?

[@vclarke4433]

I honestly wish I just sat in my room and watched your videos rather than going to university. Much clearer and much cheaper and less stress.

[@mrpanda7777]

Whats stopping you?

[@hoseam4537]

@@mrpanda7777 Sat is a past tense

[@VMYE-ir6vw]

what you study in college is more important than you think!

[@sed4454]

@@VMYE-ir6vw balls

[@khinethurein7336]

@prostavse we are the same

[@shashankbangera7753]

2022 and still one of the most intuitive and relevant videos on OOP in KZbin. Thanks Corey for this playlist, looking forward to complete the whole series within this week

[@michalmikulasi5193]

This tutorial about classes cannot be better. I really mean it, its just perfect. In my life i may have commented 3 videos here on youtube altogether, but this time i really needed to say THANK YOU, because you saved me lot of time, effort, and nerves. I am just looking forward to your other videos. Amazing work!

[@coreyms]

Awesome. Thanks, Michal!

[@michalmikulasi5193]

its good to see that not only programmers or people who wanna learn watch these videos, but also morons do

[@evelynpunzalan4606]

Corey Schafer sir what application did you use? And how to download it for free? Thank you so much in advance :)

[@evelynpunzalan4606]

Michal Mikuláši what application is that sir? Is it notepad++?

[@ananthvankipuram4012]

John P Smith

[@TrungNguyen-ld7hz]

I've just shown this video to my teacher. Now he's my student.

[@ahmadraniri5200]

Laugh so hard for this...

[@alaylmunevver3211]

this is the best comment so far

[@harrisongachuru3185]

😂😂

[@gorukun9087]

Haha lol seriously??

[@xfire3778]

Goru Kun you’re joking right? You didn’t seriously think this even happened

[@occasionaltraveler]

To everyone who is learning through Corey's channel. Do not ever doubt yourself whether you will land a job or not. You will, because I did by watching his videos. Thanks Corey. You are the best teacher.

[@dereckwbii3504]

That is AWESOME!!! So happy to hear you were able to land a job!

[@ayeshavlogsfun]

What specifically did you learn form this Channel ? Python or else ?

[@occasionaltraveler]

@@ayeshavlogsfun Of course Python

[@ayeshavlogsfun]

@@occasionaltraveler Did you learn whole python from this Channel mean beginner to Advance ? And what type of job are you doing using python ?

[@fagbenromodupeola3095]

thanks for this motivation

[@sanmulty]

You are better organized than some paid courses. Bravo !

[@niteshchauhan7775]

*all paid courses.

[@meatyout]

@@niteshchauhan7775 Thanks God, I haven't tried them all, but you may well be right! Much better than Udemx....

[@kircyclone]

Yeah. That's what I thought.

[@Shivam_Manswalia]

that's what i was gonna say 😂

[@kristypolymath1359]

@@meatyout Udemy is just awful. Pretty, packaged courses. No content.

[@nickmarshallvfx]

This series of lessons is honestly some of the best training I've ever seen. It's so clear and concise. The examples are perfect too. I'm writing this 4 years after they were released and they still hold up perfectly.

[@ndeoligence8]

00:00 Introduction 00:33 Why use classes 01:09 A simple class 02:13 Class vs Instance 04:43 Initializing instance attributes with `__init__` 09:00 Custom instance methods 11:35 Importance of passing `self`

[@pritiagale4204]

Link for this topic

[@bucky5269]

People like you are why I graduated lmao

[@OK-Helloworld]

@@bucky5269 yup

[@ParleysWoodedJourney]

good human

[@HamroMotors]

Literally I was crying when I finally understand actual work of "self" keyword. Saviour !!!

[@rogerwilco6725]

A month of confusion fixed in 15 minutes. Excellent job. Subbed.

[@jarrettguthrie1670]

This defiantly got my sub. People always seem to jump around, or leave things out, or mix terms when describing classes. This has been the most straightforward explanation I've come across.

[@yogeshkumarshankariya642]

University professors should learn from you regarding " how to teach students". Love from India, sir.

[@rebelgordo2339]

Government funded bull shit. I can learn complex mathematics, science and physics online for free better then a $100,000 university degree could teach me.

[@ajithajith3803]

Yes🎉

[@salbayrak]

I don't know you but before recording this video, it is crystal clear that you asked yourself how can I be explaining better the concept of class/object to novice learners and you just nailed it. Huge thanks for great work man. We all humans should consider of adding perfectness to our professions. Cheers from Istanbul!

[@vigneshn_learning]

✏ Notes attributes = data, methods = functions Instance of a class class variable , instance variable 🔖 Bookmarks 00:00 Introduction 00:33 Why use classes 01:09 A simple class 02:13 Class vs Instance 04:43 Initializing instance attributes with `__init__` 09:00 Custom instance methods 11:35 Common Mistake - Importance of passing `self` 14:25 Summary

[@MrReklez]

ty

[@samdavepollard]

Any time I'm looking for a video explaining any coding stuff, it's always a bonus to find that Mr Schafer has the topic covered. Always good stuff from this guy. Clear diction, crystal clear explanations, pin sharp video, no silly background music, no lame attempts at humour or sounding cool, no dogs barking in the background, etc etc, just solid 100% no BS explanations and knowledge. Many Thanks.

[@coreyms]

I'd make more lame attempts at humor if I were funny haha. But thanks for the kind words... I appreciate it. Glad to hear you find the videos helpful.

[@danverzhao9912]

This is the most clear explanation and demonstration on KZbin, I paid 120$ for a python class and it’s not as clear as this. Good job man keep up the good work!

[@hadiakbary410]

Have been searching all over the internet for a week to understand what classes are for and what is self here, this example was the best way to explain classes in python so far from videos and materials I have seen. Thank you.

[@sylargray8913]

Mate, I have hit gold. You legit explained OOP to me like it was so fucking simple. OOP is easyly one of the hardest concepts in computer programming but you explained it in a way i think anyone can understand. Thank you so much!

[@coreyms]

Awesome... that's nice to hear. Glad you found it useful!

[@lilfoxxxx5785]

I'm pretty sure I grasped the concept in the first 5 minutes, the pieces were finally coming together. Corey definitely made it sound so simple!

[@maniece100]

I can't believe it, impossible became possible. I now understood what is "self" thanks a lot man. Can't thank you enough.

[@infofast7326]

First time in history someone explains the concept of "Classes", "Instances" and "Self" is a way that can be understood!

[@Eren-qo1lu]

I'd say that these details (how classes work, what instances are, what 'self' does and what happens in the background) are what distinguish basic and intermediate knowledge. And if you at least read some about it, you may detect similarities between different programming languages, and realize that it's often 'the same', but with a slightly different syntax. At least that's how i understand it. Thanks Corey, thank you for not being lazy (like me) and actually script, record, edit a video to help others understanding a topic which is very important.

[@zulfi1]

i spend hours and hours on youtube to get a clear view and concept of "__init__" and "self" finally found this video. no words simply GREAT job done.

[@rolfedrengen]

Finally a tutorial that doesn't try to use all kind of metaphors, but just explain it like it is. Thanks!

[@sajolsajol8393]

lol dude

[@davidalexander829]

It's the plain English explanation of the difference between statements such as A. Emp_1.fullname() B. Employee.fullname(Emp_1) that make the difference and sets your tutorials apart from the rest. Better than Netflix. I binge watch Corey tutorials

[@coreyms]

Thanks!

[@tomduda1]

I teach CS and Cory's channel is always my recommendation when a students needs supplemental material. Cory is my go to guy when I can't quite get through a particular student. Thank you Mr. Schafer for saving my butt more than a few times. Ironic note. I actually have a dog named Brooklyn lol

[@hughlilly]

"That's not extremely important to know" is such an understatement -- I can't believe how clearly you explained "self"! You are amazing.

[@sreekanthreddylingamdinne363]

i am completely beginner to coding.after started watching you're videos find coding is awesome.i have suggested these videos my other 3 colleagues to learn python basics.Gained lot confidence.Thank you.Thank you from India.

[@AMINE-yy3zb]

I would give the nobel prize for this explanation. Thank you Schafer.

[@manish-gupta]

No one can teach Classes in python better than this. Great tutorial for beginners. Thank you!!!

[@basetroll1627]

I tried for so long to understand classes and what is behind it: 15 minutes of your explanation and it made Click! Thx Corey Schafer!

[@af6727]

He deliberately made the mistake at 4:33 to show us how powerful classes are. Genius move. A true coder.

[@af6727]

@@ShahyanBharucha30 Shut your mouth.

[@dystopian_1]

@@ShahyanBharucha30 Shut the fuck up, moron!

[@IoniB]

I thought so too ahah

[@af6727]

@@dystopian_1 You is a punk!

[@dystopian_1]

@@af6727 No, you is.

[@muneebrehman7463]

Out of the many years I've watched videos about anything on KZbin, I can count on my hands the number of times I've actually commented on a video. However, the way Corey explained Python OOP through this video, especially a week before my computer science exam, I just had to drop a comment. This is one of the best and most informative instructional videos I've ever seen, like ever even outside of computer science. Well done!

[@cheikhoudiallo1560]

loving it. I just started learning python and its my first programming language. I love how this guy explains new words like classes and instances in such a clear way!! thank you

[@tobilliontv7276]

I learnt more in this 15mins video than in my entire semester

[@Arthurk346]

Seems like you never payed a visit to your school

[@88Timur88Bahmudov88]

@@Arthurk346 i can confirm that some universities are so dumb that the statement above is true sometimes

[@1_and_only_Crjase]

Instead of writing all that, just to get the employee fullname, you can just write: print(emp_1.first + emp_1.last)

[@julia_orchid_cali]

Corey, thank you 1000 times! Very good explanation of object-oriented concept. Understanding self was a challenge and you were able to help it to sink in. Forever grateful!

[@darkscienceyt]

Absolutely superb presentation! Worlds better (and more useful) than Udemy!

[@runningforver5958]

I honestly dont understand why people like this dont make udemy courses... Every second udemy course is just no explanations

[@intothevode]

Better than codeacademy too

[@harshitaseeja3290]

ikrrr, I had a hard time understanding this through Jose

[@jaylooppworld381]

@@intothevode no wayyy

[@zackerystarling2352]

yes definitely!

[@zaidzabeite7750]

oh Allah! this is beyond explanation, this man is from another planet which is good at explaining confused things like "self" hahhh in a more clear and concise way. i can't thank you enough man. i really appreciate it

[@mocoebabymom]

after many trials to learn that "self" thingy, now i understand it after watching your video. my 3 remaining brain cells thank you

[@williambridge9521]

Audi Farizka LoL, I can relate to that “3 remaining brain cells” 🤣

[@mocoebabymom]

@@williambridge9521 studying computation is tough lol

[@jmack6046]

I've been learning Python as my first language for a few months now, but I got stuck and couldnt' grasp the concept of OOP via Python. I started leaning OOP through books in Ruby, and I felt like the way it is presented in Ruby is SO much easier to comprehend compared to Python. I guess there's a reason why OOP is usually introduced within the first three chapters of any Ruby textbook (forgiving syntax/true object oriented language) vice Python which teaches OOP in much much later chapters. At any rate, once I understood the basics of OOP in Ruby (took like 2-3days).. the transition to Python OOP was pretty easy.. It's essentialy all the same besides some terminology differences. Great video and thanks :-)

[@hv1461]

What makes OOP in Ruby easier to comprehend ?

[@sketchfam8037]

I’ve never experienced such clarity, deep teaching intent and professionalism in my life . This was astounding

[@ismailniyaz5167]

Simple, concise and an amazing piece of work! Not only did I understand something I've been struggling to wrap my head around for a while, but I can now explain everything to my classmates too. Thanks a lot for making me look like some sort of Python Jedi.

[@taimooralibukhari]

My teacher took whole semester for this still I wanted to withdraw but this guy here.......did that in 15 min Dayum!

[@shawnsweeney117]

Corey. I have taken Java classes at a local university and I am a programmer from the 1980s. Classes really confused me when I took Java. Just couldn't get my head wrapped around the vocabulary. Your explanation was spot on. Thanks a great deal. Very appreciative of you taking the time to help folks like me.

[@HarshitTewari20]

If only our universities were filled with professors like you. God damn it! I feel as if I've wasted an entire year trying to learn something which you explained so easily and comfortably in 15 mins!! Thank You for the wonderful explanation.

[@therevivalknight4678]

One of the best explanations of class instances available on KZbin

[@isaiahlopez51]

I love how you go through examples of "manually" setting up classes and proceed to use the constructor with the INIT method. out of all the python videos this one explains it amazing. I also appreciate the way you explained class and instances and the differences.

[@jowangify]

Great clarity - showing the "long version" of emp_1.first = "Corey" and then how it translates into __init__ was really helpful, never occurred to me that was what was happening. Have heard many explanations of init but this is the first one that was clear and made sense to me, thank you Corey!

[@deboparnabanerjee4185]

honestly, i've been searching for a whole week websites and books to understand this concept and nobody could. You actually explained the function of '__init__' and 'self' instead of bluntly telling us to memories this. Thanks A TON! now i know when where to come when in doubt lmao

[@basetroll1627]

Same her! Boy was I struggling before these 15 minutes !

[@SalahuddinTariq-v5x]

Best explanation of 'self' I ever heard. He covered the concept of class from so many different angles and he addressed all those question that a beginner asks while learning about the classes and especially 'self'.

[@EduljiBharucha]

Clearest explanation I've seen. Thank you!

[@zes7215]

no such thing as importax or not bout it, ts a toolx, nonex. no st as clear or not

[@bakhshizulfiqarmanzur8988]

Zes dude you good?

[@TheValkire]

Minute 13:00 of the tutorial is bliss, finally getting what the 'self' keyword really does. Thank you for that great explanation!

[@MrCmon113]

Self isn't a keyword. You could write anything else there. That was actually a controversial topic, some python programmers being of the opinion that self should be a keyword in the language.

[@khorshedalam1589]

You are truely a genius, 'Self' parameter wasn't clear to me, I just remember it to use it but why it is there and what actually it does I didn't know, but now after saw your tutorials, its very clear to me. Thanks corey!

[@HaileeMiu]

THANK YOU! I just went through the OOP portion of a paid tutorial but still didn't feel comfortable with the content. So I search and found you. Great thoughtful and thorough explanation.

[@castroislivingonearth]

Some people walk around earth without a purpose. But, Corey is sharing his purpose !

[@karasu5354]

I took the class about a year ago and was confused what "self" is until now, thanks bro, you literally teaches better than university professors

[@pxscrill]

OMG. I have been struggling to wrap my brain around all this, and you explained it so well! It's actually coming together now. Thank you so much!

[@angadsingh6478]

""SELF"" the biggest mystery finally solved

[@nonalcoho]

same here

[@adithyavarman6316]

for mee too

[@thomash7247]

yes

[@manikandansrinivasan9816]

You are the only reason I am learning Python.. You are teaching stuff what my college couldn't do in a year

[@chenlmbd]

I don't usually comment on KZbin, but I just can't help to tell you how amazing your videos are. You are making programming exciting again for me! I am so glad to have found you! Thank you so much for making these videos!

[@KyleChiversC]

I've been working on Udacity's full stack developer nanodegree program for the past couple of months. Up until now, classes have felt somewhat abstract and I definitely didn't understand the purpose of 'self'. The way you explained everything in this video was incredibly clear and now I feel like a have a more solid understanding of classes. Thanks so much!

[@MrCmon113]

The "self" is controversial among python programmers: some think it should be a keyword rather than a convention.

[@lionatticus9743]

Oh my! I’ve been writing Python code for a few months now. I’ve learned a lot, but this! This is gold. Game changer.

[@LacksonMunthali]

The "self" explanation is what makes the video more valuable. 😊

[@jessesinger4790]

I also think this was great. Not only do you explain how to do it, you give an example of how to do it, and ALSO give reasons for WHY to do it.

[@itsmr.salient7184]

Corey! Corey! Corey! Corey! Corey! Corey! You are an impeccable teacher. No one focuses to teach the subtlety of the topic! And here you are, explaining every bit. Just, Love you Sir!

[@samandrew8158]

You're a better teacher than my CompSci Prof, dude! THANK YOU!!

[@blazejp6204]

Hello. I have watched quite a few videos explaining classes in Python and this one is the best. I like Your clarity of presentation. I've learned a lot. Thanks

[@karimwaziri791]

You are still highly recommended in 2021. love and respect from Afghanistan.

[@aaronhunter5464]

this made me realize that I actually don't know how classes work

[@claaaaams]

you have a gift for explaining things. I've watched class explanations from 4 other channels and this is the clearest most concise I've seen. Thank you.

[@basetroll1627]

here too!

[@in_ashish]

No, I'm not crying. How someone could explain this much good! 😭 Thanks Corey! I pledge to contribute whenever I'll make my first bread. Thanks again, worth a billion!

[@juliusarceo3800]

Wow, you did a fantastic job explaining this concept! I am learning to code for the first time and was not able to fully grasp this material until I saw your video. Thank you so much. I look forward to watching more of your tutorials.

[@ralf1273]

The most well explained lesson about classes and instances, i've ever heard. i finally got it Thanks Corey...u'r the best

[@terrimotherof4089]

I have never had a problem understanding other people's accents. But when learning new content, new jargon, and new vocabulary understanding what is actually being said all of a sudden becomes impossible when paired with an Middle Eastern accent, for me anyway. THANK YOU!!! Corey Schafer = TRUE I am so thankful for your content sir, much appreciation!

[@kabirajadhikari2092]

Sir I finally master stuffs of object oriented. Thanks a lot for great help. You deserve best youtuber.

[@jaxwylde2139]

Without a doubt, the best explanation I have heard on class creation/usage in Python (or other OO languages), and how/why 'self' is used. Most of the other videos/lessons I've gone through simply state something like, "Do it this way...because that's how it's done". Your 15 minute explanation surpasses everything else I've seen on learning Python / OO programming. Liked & Subscribed!

[@MrCmon113]

He doesn't explain why it's done that way though. It's kind of controversial as well, so you'd have to address different people's opinions to understand WHY there is this convention with "self".

[@sneezydeezymcdeluxe7015]

I remember trying to learn python ages ago and not being able to understand what the hell self was or why it was used. This video made it so god damn clear that I actually can't believe it was so simple.

[@Zero11_ss]

I think your the only person who actually explained to me what self is

[@basetroll1627]

Same here

[@MouradMourad1000]

clear, efficient, short, so what else should we expect. thanks a lot man, you are the best

[@mohammedmahmod1702]

leanrt so many things from this video but i had to repeat your video few times to understand it better. thank you

[@donaldkeith139]

Brilliant stuff! So clear and very well presented because there's no extra talking or fluff - straight to the point.

[@hassanmuhammad8520]

This is the most amazing tutorial/ explanation on introduction to classes in python on the whole of KZbin. Thank you so much

[@kalicialopez3729]

Oh my god... I sat in class totally bewildered with this topic. I feel so much better having watched this. Thank you so very much Corey Schafer! You've got yourself one massive fangirl!

[@EdenSignal]

The explanation of 'self' releases a lot of confusion, thank you Corey.

[@manikandank3931]

print("thank you")

[@majabojarska4821]

@alexandru dumitru It's necessary to escape the inner double quotes like this, otherwise there will be a SyntaxError ^_^ response = input("*INSERT \"NICE\"*")

[@valaks36]

@alexandru dumitru lmao

[@VictorOlet]

@@majabojarska4821 No sleeping on syntax out here 🙌

[@tramquangpho]

Maja Bojarska .

[@balrajphotography8035]

I was trying to learn classes from other sources but here I am understanding it the way I wanted. Thank You, Corey Schafer

[@marckhycs319]

finally!! someone explained the mystery of "self"🤗

[@petrahrabakova752]

After the whole semester of object oriented programming, I finally fully understood the fundamentals of it. Love your tutorial! Going to watch the next one right away :) Thank you!

[@Qelacien]

What a great video, i have no words. Thank you Thank you Thank you!!! I just want to share 1 thing from goolge for those who might have some difficulties with the word instance. *An instance, in object-oriented programming (OOP), is a specific realization of any object. An object may be varied in a number of ways. Each realized variation of that object is an instance. The creation of a realized instance is called instantiation. Each time a program runs, it is an instance of that program. In languages that create objects from classes, an object is an instantiation of a class. That is, it is a member of a given class that has specified values rather than variables. In a non-programming context, you could think of "dog" as a class and your particular dog as an instance of that class.*

[@SparknShow]

I learned more in this 15 minute video than a week of class. You saved me😥

[@Amit101-w7o]

Thank God I landed on your channel, this is one of the best series for learning OOP.

[@mikeshea2526]

Just... thank you. A clear concise explanation of what classes are, how and why the syntax works, and a realistic example of how to do it. And nobody died. We're all still here.

[@amithpandit4043]

My work-colleague told me about your tutorials on KZbin. I am gonna buy that colleague a coffee.

[@syedabdulsalam4659]

also a paypal donation to corey

[@atikshsingh1598]

while you're at it get me a hot chocolate too. thx

[@EthanDyTioco]

is it too late to ask for a pizza for the boys at our corner of the office?

[@nackyding]

BEAST tutorials! Best I've seen on youTube, hands down!

[@alexandre2245]

I just spent 2h reading the stupid book that my school provided, this is so much clearer ffs thank you so much you are amazing…

[@lukasarich9270]

Watching all the ads so you never stop making videos.. Thanks so much for the great content!!