Magic/Dunder Methods in Python | Python Tutorial - Day #73

[@ankushsingh1942]

Quick Quiz Answer class shop: def __init__(self,sales,expenditure): self.sales=sales self.expenditure=expenditure def __call__(self): print(F"The total profit is {self.sales-self.expenditure}") shop1=shop(15000,12000) shop1() Output: The total profit is 3000

[@GameWithStuff]

Thanks

[@armaanaujla630]

class shop: def __init__(self, expend, sales): self.expend = expend self.sales = sales def __call__(self): if int(self.sales) - int(self.expend) > 0: print(f"The total profit is {int(self.sales) - int(self.expend)}") elif int(self.sales) - int(self.expend) < 0: print(f"The total loss is {int(self.expend) - int(self.sales)}") else: print("No Profit or Loss.") day1 = shop(50000, 70000) day2 = shop(387419, 257692) day3 = shop(50000, 50000) day1() day2() day3() Output: The total profit is 20000 The total loss is 129727 No Profit or Loss.

[@mansoorsarookkh]

thumbs up

[@irfanmohammad2132]

I think the practicle use case of def__call__(self ) : method will be to add conclusion to a class or it can used to find total amount at the end of class

[@swatidixit6459]

Reached #day 73 and realllyy enjoying each day and gaining knowledge :) Harry sir you are great!!!!!

[@ahsantariq3926]

Call method can be used to use a class instance like a function. We can give arguments and executes it however we want

[@i_am_dumb1070]

I have never been this consistent with my learning enjoying every minute of this course

[@mansibarewar6295]

true

[@theankitsagarit]

Very good and informative content.... This is the most user friendly and learner friendly tutorial channel. Harry bhai 9999 kilo shukriya...

[@Realgemigindian777Realgemigind]

class Nt: def nert(self,n): self.n = n def m(self): print(f"thakiQ yujig disa cod {self.n} PRo !") a = Nt() a.nert(input("antra yuar nema: ")) a.m() Thankiyu aap ne ye cod ko pda ❤

[@technomusiccloud9722]

quickquiz answer🔥🔥🔥 __call__ can be used in a same fasion as help() like to descripe an object and its properties in a readable format

[@rahmansherif]

QUICK QUIZ ANSWER: class calculator: def __init__(self, base): self.base = base def __call__(self, x): return self.base + x c = calculator(10) print(c(5))

[@thekibouminecraft9361]

15

[@veersinghchauhan6885]

At 7:45 why is it executing only the str method and not the repr method . Even though we have not called either of them while typing print(e). Can anyone help 🙏

[@PIYUSHFFYT]

repr run's if it didn't get any str if it get str then you need use repr() fuction to call it

[@RahulVyas-ds4uv]

Bcz he called this class only once

[@probalkar6066]

Harry bhai plz start a machine learning ultimate course too from beginner to advanced really need it 🙏🏼🙏🏼

[@sanskarsingh2504]

yes

[@rinkukumari4438]

Yes

[@meenakshi_gupta]

Yes

[@pradhyudh]

Yes

[@SonamKumari-xh4jy]

Yes

[@sanjeevthakur6837]

call function practical use might be to check the functions in the element

[@arpankarmakar16]

Quick Quiz: Harry sir in the short time I only found this little application of the __call__ under method: import random import string class Employee: def __init__(self, name) -> None: self.name = name def __call__(self, *args, **kwargs): # this makes the instance callable self.id = "".join( random.choices(self.name + string.ascii_letters + string.digits, k=6) ) print(f"The Employee's ID: {self.id}") e = Employee("Arpan") e() # The dunder/magic method __call__ here, prints the Employee's randomly generated 6 character ID

[@saradasarawagi6622]

10:40 to know don't of the major details of class or every object of class or get the information of class

[@mehmoodahmed1980]

__call__() Method is used to make the instance of class object callable. class Callable: def __call__(self): return "Instance is Callable" instance = Callable() print(callable(instance)) #return True if callable instance() #calling the instance

[@LogicOfComputerScience]

Harry bhaiya, I request you... Aap please apne interpreter ka size bada rakha kare. Or console ko small size me rakhe take dekhne me or samajh ne aasani ho... Thank for teach us.

[@mohankilari1747]

bro we can actually use the printing of length of name by print(len(e.name))

[@narendraparmar1631]

Thanks Harry for your efforts.

[@regulusblack8009]

I think the practical use case of def__call__(self ) : is to add a definition or conclusion of a class which can easily be obtained

[@manik6621]

bhai i am just curious , yeh pakistan mai koi teachers nhi hote kya online ? sab indian teachers kai comment section mai hi hote hai .!

[@aiapro4306]

@@manik6621 bhai i am just curious, why r you crying?

[@priyanshupanda2678]

11:09 the call method can be used to describe the function of the class

[@Nikkichaudhary97]

Hello kya ham dost ban sakte hai sirf python ikhne k liye?

[@parwatsingh677]

OP python course 👌👍👍👍🙏

[@sasticoaching6738]

Prctical use case might be to use the class as an argument to The Function like it may return a list which can be used as a argument in a funcion

[@UdakshuShorts]

best teacher🤩

[@avinashyt2942]

Best use case. 😅 emp1 = Employee("Harry") emp1() Terminal: Users\Desktop\Code With Harry\100 Days of Python> He is a Naughty Boy😂😂

[@ishitagarg2787]

Thanks! You are awesome :)

[@siwachjay]

BRO, At 3:26 you can also write ----- print(len(e.name))

[@HuzaifaKhan-iy5qj]

Harry bhi, you've unnecessarily complicated this lecture, and I needed to understand it from Jenny's lecture.

[@shivastar1148]

I am glad to watch now

[@amankumarverma8426]

Harry bhaiya, if we use print(len(e.name)) then it works fine though

[@codegenius9521]

i think call method can be used by the programmer to tell about the class in simple words

[@mdsohanurrahmanhridoy1343]

#Completed Day#73/100😍

[@rahulatal1816]

Bro, pls guide for major difference between __new__ and __init__ If __init__ is also a auto-constructor and initializer then why we use __new__ What is the benefit of using __new__ and what problem we face if we Do not use __new__

[@meditationmusic6482]

Thanks sir.

[@omerqureshi3430]

The spelling of object is wrong on 0:12

[@AbdulHadi-qq9hp]

But sir, we can print the len of name like : # Coding : class Employee: name = "harry" # def __len__(self): # i = 0 # for c in self.name: # i += 1 # return i e = Employee() print(e.name) # print(len(e)) print(len(e.name))

[@AhmadKhan-di2cq]

i=i+1 then work

[@theroshantune]

there is only 27 days left to complete this course and i am super excited to see me at day 100 thanks MR. Harry for this amazing course

[@nitiksharma3182]

bro it's useless just do competitive coding

[@mariamhasan3733]

@@nitiksharma3182 You know competitive programming requires basics. We can jump on CP right after knowing the basics and applying our knowledge.

[@nitiksharma3182]

@@mariamhasan3733 for cp you don't require these additional libraries and concept. These concepts sounds good but off no use at current scenario.

[@i_am_dumb1070]

@@nitiksharma3182 you are learning for the sake of getting a job but there are people like me who are interested in programming and making their own programs and work on personal projects. Enjoy what you do and take everything as a new experience to learn from Coding is not a pressure its more like a hobby for me.

[@nitiksharma3182]

@@i_am_dumb1070 sorry bro, I am wrong. you opened my eyes

[@RasheedKhan-hy6ml]

harry bhai react native par b 1 playlist banaoo

[@PhantomX7157]

Love you ❤️❤️

[@lakshyachaturvedi2712]

mere me __str__ use karne par bhi "" ye likh ke aa raha hai jo double quotes me likha hai kya karun?

[@shubhamsaini4871]

Harry bhai aapne 1 baat batai thi ki.. python me sab object hota hai.. please explain how?

[@hamrosolution88]

call method can be used to give final conclusion

[@akhtarhameed360]

Harry bhai ik request hai python k bad php k b modern version k course lana

[@techbar000]

write sir.

[@SaigopalakrishnaMaya-j5u]

harry bhai in my code i can't get like you if i call the str or repr then also it prints the same thing that what printed in first with out them can you solve it

[@pankajsinghbisht76]

Present Sir #day73

[@rajkushwahar]

ye samjh nhi aaya agar lenth hi nikalni thi to len() ya count() lete phir call kar lete __len__() ka kya faida?

[@miri_maau]

at 2.31 we can write print(len(e.name)). It will give len of name. What is the need of __len__(self)method ?

[@RishabBharathi]

print('hello world') se start kiya aur aaj hum edhar hain

[@RishabBharathi]

⬆

[@dr.syedinayatullah9125]

Mene aap ka lecture 6 min tak suna lekin muje andaza hogyaa ke muje kuch samaj nahi ane wala. Ab google search kia to muje samaj agaya.

[@sudhansubalasahoo]

QUICK QUIZ ANSWER: We would like to make a class callable to give it some functional ability by calling it using '()'. Like we can create a calculator class and make it callable by giving it some operation inside the parenthesis and call the methods inside the class Well that's what I can think of, if you have any more suggestion, please comment down below

[@arpankarmakar16]

I wrote a comment on a practical use case I thought of. Please review it

[@sudhansubalasahoo]

@@arpankarmakar16 where?

[@shivamchaudhary8592]

#Day73 Present Sir

[@mark_jugarberg]

harry bhaiya i hope i get knowledge like you😍You are alway my inspiration love from bihar🧡

[@stain5570]

today I think I will finally complete this course I will grind the whole 27 remaining videos in one day

[@mansibarewar6295]

really but will you understand info overload???????

[@stain5570]

​@@mansibarewar6295I already know lots of programming languages so it's not that hard

[@ketanverma7839]

can this be written print(e.__len__()) ? instead of print(len(e))

[@codyandersan]

When will you teach us about Walrus Operator??

[@dhananjayadk4611]

Hi Harry bhaiya 💞 from Karnataka

[@pradhyudh]

Hai ,i am from Bengaluru

[@sarv4265]

# try to make an object of this LCM class and call it """ from {file_name} import Math a = Math.LCM(6, 14) a() # gives lcm of the two numbers passed in LCM class """ class Math: class LCM: def __init__(self, num1, num2): self.num1 = num1 self.num2 = num2 # checking which number is greater if self.num1 > self.num2: self.smaller = self.num2 self.larger = self.num1 elif self.num1

[@badalsahoo3902]

Big fan harry bhai😎

[@46h1nav]

Lal phool neela phool Harry bhaiya beutiful

[@dharvikop]

Day 73 done

[@Khemchandbhatiya4]

I think here we write print so we use it as a function call and we get to know that function is call and it is written in print and we call it easily "call" it not "print" that's my pint other I would to know in my answer

[@letscatchup5869]

thank you

[@AbhishekKumar-jh4cb]

sir print (len(e.name)) use kr sakte h naa

[@aniketkewat]

Bhai kotlin ka course banao na

[@GlitchyGlobe]

Yeh vide thori difficult thi harry bhai

[@ParshuRam-ey6iz]

if i don't keep your photo in my room then i am not worthfulll to watch your priceless vdos 4 free.Thanks

[@lakhyadeepsen]

Day 73 of 100 of python challenge completed. #100DaysofCode #100dayspythonchallenge

[@prajwalm.s7976]

Repeat what you learn till you get hold of it@heavydrivergaming7831

[@aryansinha1818]

04:30

[@abhibagwan6895]

Harry bhai ek video listing kese hoti h us par bnao plzz 🥰❤️

[@bhagyabajoria]

Sir, I have a question regarding DNS for server: Should I use Cloudflare or Let's Encrypt?

[@jp-yu5wz]

I'm present 💝

[@pradeepgavhane3471]

Super bro

[@R_vis]

Harry bhai apne intro mein object ki spelling galat likhi h 😂 hn pta h apko aati h spelling or vo apne nhi likhi h but ek complete video chiyee thi linux k uppr pure din search krne prr bhi linux ka kuch nahi milta or i think coding ka itna high quality content koi nhi bnata so please do something!!! and i don't have much money to those paid courses on other sites ......... HARRY HACKER👍

[@NEERAJ-dw9bt]

Present sir 🤚

[@v_i_e_s_s_e]

Harry bro 🙌

[@arpankarmakar16]

Present sir on #Day73. Kuch bekar k chizo main phas gaya tha isliye itne backlogs bane 😞

[@gauravpawar2993]

don't be sad it's time to grow up and rock

[@manashibarman2036]

Sir mera replit free hours khatm ho chuka hai 😢. I use replit in mobile

[@anshuvirat45]

print(len(e.name)) isse v length nikal sakta h

[@volcano_ff]

Hello sir aa saab kaha work karega 😢😢😢

[@Manish-qt1bz]

Present Sir 🔥

[@sudhansubalasahoo]

Present Sir

[@hackproud]

Namaste bhabhi 🙏❣️

[@SassyShubhi]

mjhe oops ke concept se jada kuch smjh ni aa rha h koi help kro kaise pdhu me

[@wonderscraft]

same bhai bahut hard hai

[@SassyShubhi]

@@wonderscraft toh kaise krr rhe ho aap help krdo meri bi sath me ho Jayega

[@henilrupawala]

Present ✋🏻Sir

[@pubpubji1121]

Bhai call method smjh me nhi aya 😵😵 baki sab aa gya

[@Hivefusion]

Day 73🔥

[@uchiha_god_404]

#Harrybhai I am in your day 6 I just want to tell u that you have told that this is 100days course but you have taken 1 year to complete but 72% only complete your first video was uploaded in 2022 and it's 2023

[@arpankarmakar16]

Mf it was uploaded on the last week of Novemeber 🤦‍♂

[@Radhe_radhe2929]

Day 73 🔥

[@RohanDasRD]

Day 73 Done

[@gauravsethi17]

bro print(len(e.name) is working

[@MokshMishra]

that is asnwer of queck qustion

[@ayeshaakram3073]

someone pls mention the __int__() video

[@TasinIslam-mc2dk]

4.11.2024 day 73 is done.

[@asifjavaid6700]

Is lecture ki bilkul smjh nai aiii 😢. Can anyone please explain in simple terms that what are magic methods and why they are used ?

[@Zayan7909]

They are just methods defined in a class but they have some speciality like you can see init it is automatically called whenever an object is made . str method prints the short information of the created object

[@PhantomX7157]

Like krrke bhi jao yyrr

[@Relatable2U.]

Did something noticed joker mask?

[@akbarhusainbhoraniya6949]

kuki error nhi de esliye

[@SaiKiranRK-w2h]

# Kya hum ne __repr__ ko call kiya? # !!!!NAHI!!!!! why?

[@vatsalshingala3225]

❤❤❤❤❤❤❤❤

[@Uploader12]

😍😍😍😍

[@neerajtripathi3523]

Jaldi jaldi comment kar deta hu like milega 😃😃😛😛

[@soriful9417]

🤣🤣🤣

[@neerajtripathi3523]

@@OmDeshmukh00 according to you, what is fresh ? Wahi laya jayy😛😛😂😂

[@richit7503]

Lol

[@irfanmohammad2132]

Ha ha maine like nahi diya ! Popat

[@nileshtayade3546]

Abe chote 🤏🏻 bacche ho kya