Python OOP - Deck of Cards

Card, Deck, and Player classes written in Python 2.7.
You can use this as a starting point to write any card game you can think of!
The code can be found at:
github.com/eli...

[@SprocketN]

Though this is an older version of Python than I use. It is the first video that explained classes in a way that I could understand enough to create my own class for a tile based game I’m writing, while learning Python. I have a lot yet to learn, but you have really helped. Thank you for taking the time to create the video and sharing it with us.

[@ExecutedBinary]

Thanks you! I'm really glad it was informative, I plan on making an update for python3 some day soon

[@zuraqarchava3040]

@@ExecutedBinary Hello, how to contact you on social media?

[@MenyeMC]

I genuinly believe this is the best thing I have ever seen on youtube. I have been looking for an OOP example to help me wrap my head around it but all channels keep saying the same generic stuff. Thanks for this video.

[@frambuella]

Yooo! I just started learning oop in python last week and this is such a great way to learn about classes and objects using a deck of cards! Thanks for the video!

[@xzex2609]

if you want to have a good example of implementing somethin with OOP I suggest you to see JImShappedCoding developing a mine sweeper game in tkinter.

[@jeffreykrenitsky6190]

One of the most helpful, informative, and succinct tutorials I've seen on KZbin.

[@BaerenPole]

the hdd sound makes me so chill :)

[@aquacube]

Yup, it was a fine sounding HDD 🙂

[@jamesgebler5738]

Thank you so much for this video! This is incredibly helpful. I was trying to understand how to create a deck of cards myself, and this solved my problem!

[@lamedev1342]

I struggled with classes but you really make me understand them better

[@ExecutedBinary]

Glad I could help!

[@shubhampatel6908]

I started learning OOP recently and this project was really awesome. It also cleared my OOP concepts. Soon I will create its python 3 version and send it to you if you wanna add it in your source code repository. Syntax was almost same in python 3 , so I guessn there will be no need😅

[@ant1fact]

Great video. Instead of "for i in range(len(self.cards)-1, 0 , -1):" you could also use "for card in reversed(self.cards):"

[@dylanboyd6147]

instead of writing a shuffling algorithm, you could use 'cards = random.shuffle(cards)'

[@omerkaratas5875]

Perfect video to comprehand things about OPP. Thank you very much.

[@diegodocarmoespindola9660]

thank you, I enjoyed watching this, it's helping me to understand more about object oriented programming

[@statuschannel8572]

2:37 you don't have to comment the other 2 classes just type "pass" inside of it python will know you don't like to execute those classes for now

[@cringelevelunlocked7418]

His python is a bit old so probably it didn't had the "pass" in his version

[@statuschannel8572]

@@cringelevelunlocked7418 see the description he is using python 2.7 and you can use 'pass' in that version.

[@manav148]

Nice video! Some nit's : - The card value should be an independent dictionary. ex: CARD_VALUE = {1: A, 2 : 2 ......, 11: J, 12 : Q} - Suit should be a separate object: ex class SUIT: def __init_(self, n, s, c): self.name = n self.symbol = s self.color = c s = SUIT ("Diamonds", "◆", "Red")

[@bobwalace5007]

OK ok

[@barrettsmith5377]

Awesome video! Would defo watch more Python videos if you put them out!

[@malabikasen2401]

Thank you! This is a very nice video to get the concepts of OOP in

[@aquacube]

Great for me getting my head around implementing oop, ty.

[@yolamontalvan9502]

You’re an amazing teacher. But you only have 1 video.

[@toniaalderbashi4964]

This is a better algorithm for shuffling. def shuffle(self): """Shuffles the deck post: randomizes the order of cards in self""" n = self.size() cards = self.cards for i,card in enumerate(cards): pos = randrange(i,n) cards[i] = cards[pos] cards[pos] = card

[@atlantic_love]

so, swapping in place?

[@tribacioustee2846]

Good video. Exactly what I was looking for.

[@jetspray3]

He started the class with an object argument, i think he is using python 2.

[@stoneskull]

print statement gave it away

[@caliapster8720]

@@stoneskull XDDD

[@Drytube]

The object parameter for the classes is also used in python 3.

[@5staryzzz]

Cuz the Print statement lmao

[@5staryzzz]

@@stoneskull Exactly

[@secretsather]

random.shuffle is Fisher-Yates!

[@appaesthetics1277]

Watched this 7 years later

[@xzex2609]

very good example .why don't you use shuffle method and pass your list? this way It's predictable

[@fun-fauna]

THIS IS AMAZING!!! PLEASE MAKE MORE VIDEOS!!!

[@verdi0756]

Hello! What i dont really understand is how does the program know which show function are we refering to, the one we created in the Card class, or the otherone in the Deck class. Im a little confused with OOP yet hehe

[@luvasluvasluvas]

when i try to print the player's hand it shows

[@Kyriesosa11]

in the shuffle function, why go from 51 to 0 instead of 0 to 51?

[@TheLionwarrior87]

No chill on the keys 😔

[@barclayiversen376]

bruh.

[@jennyjansson4997]

i hate that af too. whyyy did he have to ruin such great tutorial

[@schcharles]

Exactly what I thought

[@harishpuvvada1877]

Clear explanation. Thanks :)

[@emzx111]

this is great! thanks for the clarity

[@FelipeV3444]

I had tried something like this before (in java tho, I know, I know, it's shitty) but I got stuck when it comes assigning a rank to no limit hold'em hands (high card, three of a kind, straight,...) let alone taking kickers into account... so that was kind of what I was looking for, but I was shuffling like crap and off course python is much better to use in general, so pretty good vid! Any ideas, maybe future content on how to actually code the game of texas hold'em, even without UI? That'd be awesome.

[@iangannon8539]

14:50 nice...

[@AftabBaloch_]

thanks

[@samdavepollard]

Very nice. Thanks for sharing your knowledge. I've done similar in C# but only recently getting into Python so your vid was a must watch. In the deck's draw method should we not check first that we're not trying to draw from an empty deck? Thanks again.

[@samdavepollard]

Great stuff. Thanks, Eli.

[@kidsmadeeasy9404]

He's the man im learning from this

[@itech40]

Learn by making leetcode.com and other ! :D

[@darrenjones3632]

So I am doing a Python course on Udemy and we were just introduced to OOP essentially and now a milestone project has us building a blackjack game. Should I really be able to come up with something like this on my own? Seems I am pretty far off from using my own reasoning to invent a whole deck of cards... Maybe I am not trying hard enough. Or maybe I need to go practice a lot more OOP before trying something this big?

[@tamayo3861]

Eli Byers you should be making more videos and commenting less!

[@micahman33]

felt the same way. I as getting frustrating trying it on my own so I was looking for a good explanation someplace of what should be objects and what shouldnt.

[@mikey2176]

Udemy brought me here too :) Thanks for the video. I like your explanations.

[@yummyramen2821]

@@ExecutedBinary do u think a 22 yr old like me is too late to learn to code ? I want to learn how to make web applications and make it as my career

[@yummyramen2821]

I always doubt because most computer science dudes that i asked that even after a decade on the field its hard to become one

[@sarvanandgaikwad3048]

Make videos bro I liked it.

[@xxsurajbxx]

what was the build(self) method in the deck class?

[@oliverludwig6148]

how would i make an irregular deck of cards? meaning not all suits have the same number of cards in it.

[@xjiren4936]

Getting a traceback error, It's saying my deck is not defined. Not sure where I'm going wrong.

[@Mune.T]

What do i do when i want to have 2 times the same card in my deck? e.g. a deck with 8 ace of spades and 2 jokers.

[@AndrewDangerously]

Really helpful, thanks!

[@nimrakhan2868]

How can we add player names? What's the code for that?

[@csbnikhil]

random.shuffle(self.cards) would've worked. 🤔

[@shanemarchan658]

did that lol

[@C0BALTWARRI0R19]

Its my understanding that the fisher yates shuffle is the best way to ensure a mathematically random shuffle. Not sure how random.shuffle does it, but maybe OP didnt feel like it would be entirely truely random. IDK

[@Yash42189]

Dude you need to make more videos!

[@dnvrdavid]

Great tutorial You seem to have thought about adding a GUI. Have you actually done it? If you don't have one to share, can you advise us on how to do it. I love Python, but I might convert my code to Java in order to add the GUI. What would you do?

[@dnvrdavid]

Thanks for the link! It is timely. I've been working with PyQt5 (converted this from PyQt4: github.com/eladj/Whist and want to adapt it to play bridge), but it wasn't easy. I might switch to wxPython based on your link, to add a gui to my own bridge game.... I'm looking forward to your next videos! One more question: You seem to do the OO design in your head and then just code it. For those of us who struggle with OO, do you have suggestions on how to design or plan before writing code (defining requirements, objects, attributes, methods)? e.g. How did you know you would need 3 classes here?

[@1989TonyTu]

Can someone please explain to me what is happening at line 28?

[@venumadhavrallapalli]

what ... u can pass a class object as an argument inside a function ??? u passed deck in draw method inside player class !!!

[@NishantPatel5]

Awesome video!! make more videos

[@SarimFaruque]

I like this code, but I also want to divide the deck by half via a child class for each player to use, and still keep the properties of shuffling and drawing a card. Any way I could do that?

[@ExecutedBinary]

I would create a constructor for the Deck class that takes an array of cards, so you can initialize one with a partial set of cards instead of generating them. Then when create a split method that splits the cards and initializes two new deck instances with each half, and returns them. Keep at it!

[@bradleaman]

in the def show function i keep getting invalid syntax on print card.show(). any idea why?

[@hyksoscorp7831]

youre probably using python 3. he is using python 2 fix: print("{} of {}".format(self.value, self.suit))

[@arshitchabukswar9741]

If there were two or more players,there is a possibility that they draw the same card right? cause its random?

[@kajekage9410]

This guy beats the hell out of his keyboard lol

[@shanemarchan658]

11:39 instance of card class or deck class? trying to understand the show attachment u added

[@srimanyadagiri2447]

the show method is already present in the card class why do you define it again in the deck class?

[@nikkster626]

I'm struggling with understanding this.. I get that you called the cards show method in the deck show method, but I don't see how the class Deck knew to use the method from the class Cards. What if the show method had been something else completely, say in the class Player? Does this mean you need to make sure all methods have very different names? Do you know any resources where I can find more info on this? Thanks!

[@nikkster626]

That makes sense.. I guess I'm confused because I tried, for example, to take a method to draw a card in the Deck class, and use that method to place that card in the player's hand (in the Hand class).. however I keep getting errors saying Hand does not have a ___ method or attribute or what not.. maybe I am making an error in my formatting, not sure. Thank you!

[@biohoo22]

Why not just random choice without replacement?

[@fr34kthc]

I am running an syntax error, any idea what might be the reason ? # Display all cards in the deck def show(self): for card in self.cards: print card.show()

[@Drytube]

put 'print(card.show())'

[@ruddha2]

Thanks for this.

[@benpritchard2716]

How do you make it so 11:jack 12:queen 13:king 14:ace ? With a dictionary?

[@manualvarado2212]

You could do something like this: def build_deck(self): for suit in ["hearts", "diamonds", "clubs", "spades"]: for value in "A,2,3,4,5,6,7,8,9,10,J,Q,K".split(",") #or directly a list ["A","2","3","4","5","6","7","8","9","10","J","Q","K"]: self.cards.append(Card(suit, value))

[@mateuschwarz]

Define a global dictionary, or use named tuples

[@manualvarado2212]

Thank you so much!

[@curtissnowden5382]

Could someone help me with turning this method into C++ code?

[@zanderox]

How would you change the values of the cards past 10 to jack Queen king instead of 11,12,13? Also ace instead of 1?

[@zanderox]

Ah, I just changed the build to this ''' def build(self): for s in ["Spades, Clubs, Diamonds, Hearts"]: for v in ["A",2,3,4,5,6,7,8,9,10,"J","Q","K"]: print "{} of {}".format(v, s) ''' Instead of using for v in range (1,14)

[@atlantic_love]

In your card class you have 3 variables: suit, value and image_name (if you're wanting to easily blit the cards to a gui.....use a list containing the names of the faces, and then take any value about 10 and subtract 11 from it to get the element number which you use to get the name of the card face.

[@ivantorres2937]

Thank you so much for this tutorial, it's very helpful!! I'm noob in programming, could someone explainme why can't I see the information using the "show()" method of "Card" class? --> print(deck.cards[2].show()) it return "None" Thanks!!!!

[@ExecutedBinary]

This is probably because your Cards show method prints a string instead of returning one. So when you try and print the return value of show you get the implicit None return value. You can either just call show and not print it, or you can have show return a string instead of printing it inside. Keep it up!

[@genroynoisis6980]

thank you so much

[@behbryan1]

Thank you Eli for the informative video! Just wondering how I could store the values of the cards in the player's hand so I can do indexing and sum them up. Regular indexing does not work!

[@melfaraj4633]

Need to know how to make the cards graphically for a realistic game

[@atlantic_love]

download a card pack. Google playing cards download. Or, you can take pictures of actual playing cards, and crop and resize the images, and then copy those images into your program folder.

[@lukaknez2171]

what package are you using for printing Python?

[@kevinvidzzz5393]

good stuff

[@grovest4life228]

awesome pawsome

[@JoshPaulie]

Excuse me, just finding my jaw. It's somewhere on this floor...

[@ExecutedBinary]

Hey Josh, I hope you found it!

[@R0adx]

Hi, what syntax theme is this?

[@georgioschristopoulos3303]

Can you continue this project with an other video ?

[@sexayboiee]

I really think you should make a part 2 and implement some card games like Texas holdem and Solitaire.

[@georgioschristopoulos3303]

Card games with GUI. Any card game would be nice.

[@gloriaramlal8027]

How about creating a game? What we've got is just cards :)

[@atlantic_love]

@@gloriaramlal8027 Without the ability to create and manipulate a deck of cards, there isn't a single card game you can make. Baby steps.

[@andrejjanecka2627]

Hi, did you also implement Jokers?

[@marioandresheviacavieres1923]

thanks!!!

[@leestons]

How would I calculate the value of a hand? For example, a Jack and a 4. Thanks!

[@marvgarza]

Hey brother I got a question for you if you have the time... My question is... Have you ever done Baccarat Simulation at all I mean the rules the values and all the data I'm a complete newbie. Show me if you have or if you haven't please create it and show how you would go about it. Thank You. It's my dream to see full simulation of this game in widest parameters.

[@ParzivalHomage]

does anybody know why did he inherit 'object' in classes(deck,card and player) ? and how did he use variable of one class or function, in another ? when I try and d it, it doesnot work. I usually have do mention the name of the object where the variable exists.(example: )

[@carlospimentel_leantech4294]

I also got myself wondering why to explicitly inherit from object. As far as I am aware in Python 3.x there is no need for explicitly do that since it is already inheriting by default. You can refer to the book "Fluent Python" and it talks about that.

[@flosalz87]

Hey there, is there a way to reach you?

[@samalextij445]

how would you get the program to draw more than 1 card

[@manuelsoares4343]

you run the draw method multiple times

[@atlantic_love]

@@manuelsoares4343 Create a deal() method that accepts an argument representing the number of cards to draw. Then, use a loop to draw the cards and place those cards in a list. Finally, return the list. Or, as Manual Soares said, you can just invoke the method X number of times. But that doesn't scale well, it's a time consuming to code and creates unnecessary clutter.

[@juggernautj828]

Thanks 15

[@mailchibi88]

While this video was informative, its hard to keep up if you're changing variable names without warning. I had to keep backtracking just to fix these issues. Furthermore if you want people to follow along maybe consider slowing down a bit. Beginners like myself do not necessarily have the same programming logic as you when they're first going through this exercise. Looking back at the code I'm able to see how everything works but it can be exceedingly frusterating to keep backtracking to figure out where an error has been made. :|

[@willmoon4400]

Is there any code to copy?

[@adkoxderramoney2933]

do you have instegram

[@joeblowmha]

make more videos

[@trinahaque8508]

everything

[@ross5554]

Eli Byers I have been looking for a game of life tutorial in Python, but couldn't find any. Could you make it? and if it is using OOP, better than better. THANKS.

[@BrianGarside]

Eli, could you post the script for this? Great example of OOP. Thanks!

[@c4sper877]

Video description; always check the video description! 😜😏

[@johnnycincocero]

I love poop!

[@ExecutedBinary]

Thank you for getting this

[@davidjohnhamm]

why is your computer full of ping pong balls?

[@yogi583]

What kind of theme do you use, it looked like a good one.

[@p.s.758]

Do you know it?

[@chriss2295]

Great content....horrible audio . Eek

[@Ferventus]

Your code doesnt even function.

[@ExecutedBinary]

This code is written in python 2. I will make a python 3 version at some point.

[@chachacha8810]

.shuffle()

[@statixsc3013]

was a good video but for the love of god saying right all the time had me mute u after 6:50

[@anonymous.8393]

self.name

[@chrisnorthall8317]

had to stop listening, the keyboard bashing was driving me nuts.

[@atlantic_love]

Try making a video on transforming a use case into a class model. otherwise, this is all pointless.

[@zuraqarchava3040]

Hello, how to contact you on social media?