#59 Python Tutorial for Beginners | Operator Overloading | Polymorphism
ฝัง
- เผยแพร่เมื่อ 11 ก.ย. 2024
- Python Tutorial to learn Python programming with examples
Complete Python Tutorial for Beginners Playlist : • #1 Python Tutorial for...
Python Tutorial in Hindi : • #1 Python Tutorial | I...
Github :- github.com/nav...
Editing Monitors :
amzn.to/2RfKWgL
amzn.to/2Q665JW
amzn.to/2OUP21a.
Check out our website: www.telusko.com
Follow Telusko on Twitter: / navinreddy20
Follow on Facebook:
Telusko : / teluskolearn. .
Navin Reddy : / navintelusko
Follow Navin Reddy on Instagram: / navinreddy20
Subscribe to our other channel:
Navin Reddy : www.youtube.co....
Telusko Hindi :
www.youtube.co....
Donation:
PayPal Id : navinreddy20
Patreon : navinreddy20
www.telusko.com...
"This is horrible way to compare two students by marks"
I Love this line👍🙂
ikr
bro i also loved it so much!! what a quencidence
Sir your statement : "marks is not the way of comparing" won my heart
After so so many years, I have finally understood operator overloading!
😱😱😇
Exactly
Still i can't understand operator overloading 😔😓
@@alimdeen6921 YOU ARE RIGHT, THIS GUY Showing his nose after traveling through out the universe, actually he has to tell first simple example then he can show his vaast variety of expereince on us as beginners but directly he showing something else 99.9999999% from that the thing what we need is 0.0000000001% so its very confusing he did same for duck typing also
@@anindian4601 No, Actually his explanation is cool. He is explaining in the beginner point of view
He is probably the best instructor to learn from! He teaches with so much clarity! Hats off!
Since last Monday I have started to watching your videos . Now I am in #60.. , ultimately your teaching skill is too good . I have some basic core java knowledge, that's why I can catch up quickly and without you I couldn't go in depth in python.. thank you very much for sharing those materials . Appreciate your hard work.
You are a talented teacher! Happy that i've found you. Keep up the videos coming
Excellent explanation I ever heard. You are amazing. Your teaching skills are at a peak. Impressed.
I was here to learn what operator overloading is. At the time of the end of the video, I learned about the structure and how the things behind the scene gonna work. Take a Bow Navin Sir.
Wow I never knew about these double underscore function. Glad to learn new things from your channel. Thank you sir.
I ain't able to figure out the example of operator overloading :(
Awesome sir...
Also being an educator, I can imagine how much effort you are putting in these videos.👍
How cruel are these language developer, can they not make this little easy....
@@harshavardhandsh5190 Python is easy thou
I can also see the effort you put in these videos, Navin sir. And today is my birthday Navin sir!
Thanks for providing quality content for free it's better than most of the paid courses out there .
You are just amazing.(:
Thanks superhuman for this great explanation, right now I can feel what is happening behind the scene
One of the Good lecture, Students need teachers like you
Clearly explained the concept of method overloading in Python. Thank you!
Are concepts really so easy,or it's his teaching that's making them??
Thanks, sir! from now on, you opened my eyes on what python can do. All confusions are gone from my head. I really understand python now.
In the code of addition
def __add__(self, other):
m1 = self.m1 + self.m2
m2 = other.m1 + other.m2
s3 = Student (m1, m2)
This is correct
Great video, got lots to learn thank you so much 😊
sir, can you make videos on REST API using python
The way you explained the connection and flow behind the code was exceptionally well, your video increasing my knowledge of python exponentially.
Sir you are passing double values through s1 & s2 but it added only first values of both s1 & s2 ...my question is where second values has gone
I was looking in the comment section to see if anyone has asked this particular question, I have no idea what other people understood !
this is not so easy to understand, you did it also very quickly.. anyway thank u very much ..
Excellent Sir .. now I feel like a coder 😁
9:08 LEGEND!!!!!
Thank you for uploading these awesome lectures, Sir. There's a typo in this video though. "Syntactic Sugar" instead of "Synthetic Sugar".
I think below method is much more easy
class A:
def __init__(self,a):
self.a = a
def __add__(self,other):
return self.a + other.a
x = A(1)
y = A(2)
print(x+y)
o/p = 3
can you also help for subtraction
@@vibhashikhanna1864
class A:
def __init__(self,a):
self.a = a
def __sub__(self,other):
return self.a - other.a
x = A(3)
y = A(2)
print(x-y)
o/p = 1
@@Shubham-fk4is thnx buddy
class A:
def __init__(self,a):
self.a = a
def __add__(self,other):
return self.a + other.a
def _sub_(self,other):
return self.a-other.a
x = A(int(input("enter the number ")))
y = A(int(input("enter the second number ")))
print(x+y)
x = A(int(input("enter the number ")))
y = A(int(input("enter the second number ")))
print(x-y)
can youn help me with this...i wanna do it with operator overloading
@@vibhashikhanna1864
This program works well but you made a mistake with underscores.
so use double underscores instead of single i.e. __sub__
Really I never understand this topic... But nowww i really know the meaning of operator overloading! Hats off to you sir🙌
This video was very informative. Feels good to understand how magic methods works. Thanks Navin Sir!
this is the best channel on youtube to learn coding
00:03 Operator overloading allows usage of operators with user-defined types like strings and classes.
02:02 Python uses methods to carry out operations like addition.
03:48 Operator overloading allows defining how operators work with user-defined classes.
05:36 Operator overloading allows us to define custom behavior for operators
07:28 Python allows operator overloading for custom classes
09:08 Operator overloading allows custom comparison of objects.
10:59 Operator overloading and polymorphism in Python
12:43 Operator overloading in Python allows us to customize the behavior of operators.
Best Tutorial series in youtube ..........Love Sir
Thnx very much I'm having exam tomorrow very nicely explained
Sir what next after this basic ?? Blockchain or advance python??
Excellent video...finally understood the concept
No doubt, explanation is quite perspicuous.
I am just curious how print(a+b+c) performed behind the scene because __add__ can add only two number
Any Explanation/suggestion will be highly appreciated
it's too late but if you're still curious then variable length argument concept would be used in that case,you would accept the b,c in a list in the formal args and then perform the addition by using required mean like iteration etc
Sir u literally thrown away my difficulty of understanding magical methods 🔥
After waching video in sequence this is the firts video i enjoy in diff way. ;)
That's who things should be taught, loved the way you created a some background
Hi sir will you teach advance python like networking with python etc...
Finally in this tutorial somethings I couldn't understand started making sense, thanks to this man!
Sir ek aur video bana do operator overloading k upar... Apke sare tutorials samj gye, ye nhi smja
Thanks Naveen, every time I go through your video, I thank you and your team.
Sir please make step by step videos on interview preperation....
you are just awesome
Excellent explanation
hat's off guruji, im glad that people are aware about the marks comparison way, i aint a fan that way either. but as you said on youtube it might have reached a mass crowd...
thank you for your amazing lessons sir.
def __str__(self):
return " ".join(map(str, [self.mark1, self.mark2]))
Actually, the __div__(self,other) magic method for operator (/) is only for Python 2.x. For Python 3.x -- as I have found -- the (/) operator call the __truediv__(self,other) magic method.
At 1:24 it's supposed to be "Syntactic Sugar"
This is one hell of a great video! Thank you
why it is giving only one output in case of sum... i mean 118 and 134 should be there.... also if i want to get both sums what i has to write ?
while printing he has only written "s3.m1"..print "s3.m2" as well to get 134
Best Way one can teach ! Appreciative content.
Sir Your videos are like preparing tastiest Briyani and giving it as service for free 😃🥰🥰
What if we want to add 3 values by method overloading...? 🤔
Like... s4=s1+s2+s3
This man is a genius 🙌
Your classes are amazing...
@Telusko, Sir, How to know the magic method used for an operator from pycharm itself?
Sir, by your experience and knowledge you are saying that for "+" __add__ is used, for "print()" __str__ is being used, how do we know for a random operator/method, what magic method is being used in the background...so that we may overload it to our usage/preference??
Yes, I want to know the same.
press control and click on the operator you want to know to get MAGIC method
Double click "shift" and search magic method
Print(S1.AMAZING,S1.AWSOME)
what if we get many teacher like him
.
.
.
.
.
.
.
.
.
In no time INDIA will be a super developed country
Sir why we write ??
if r1 > r2: (why not >> if r1 < r2 )
return True
else :
return false
Please make one more video on class and __init__
How can we know which method is called in the behind if we use a specific operator?
sir please bring up a series of python for intermediate where we can understand advance concepts of python.
i have a question. Can you please tell me why you have written s3=Student(m1,m2) inside the __add__(self,other) method. I am not able to understand this. Please tell this.
By adding s3 = Student(m1,m2) under the __add__ function, this will automatically 'create' another 'student' with the resultant marks.
Ur python videos are awsmm.. watched all ur videos on python . waiting for next videos on python..pls keep making videos on python..thankuu sir
There is no div magic method, please can you tell me for division how it works
Hi Naveen,
what are the programs used in Product development Programs
Kindly make video
For defining add or any operator in class can i use any other keyword like, for add __a__. Or for greater than __grt__??
yes u can
These tutorials are great, but it would be a lot better to watch if the code in the background was a bigger font and/or more zoomed on, couse althought the content is awesome, you can hardly read the code it self.cheers
Great explaination!
Its crystal clear for me now.
I have a doubt about these statements will you please explain..
X+y is translated into x.__add__(y)
If x has not implemented __add__ and x,y are of different types then y.__radd__(x) is called. There are equivalent "r" methods for all magic methods just mentioned.
nice video sir
9:10 .....Golden Line 👏👏👏👌👌
in the first code why we need a student object on line 12
Can we overload the '__add__' method multiple times inside the same class? (Each method having its own different code)
Awesome lecture.
Thank you sir 🙏
You're an awesome teacher!
Amazing video , And an amazing series. can we say that defining __str__ is an example of operator overriding ? also is there anything like operator overriding ?
your explanation is excellent
thank you for your excellent class...I felt very very happy..thank you sir
great sir again the imformation which will add some values in my life😍
This is good and just.
Thank you.
Hi Navin, I was trying to overload the "__truediv__" operator and could see that its having an issue. Below is my code. Please do let me know, if i am doing anything wrong. BTW, i am using the Python 3 version :-
class Stduent:
def __init__(self,m1,m2):
self.m1=m1
self.m2=m2
def __truediv__(self,other):
m1=self.m1/other.m1
m2=self.m2/other.m2
s3 = Student(m1,m2)
return s3
S1=Student(20,40)
S2=Student(10,20)
s3=S1/S2
print(s3.m1)
TypeError: unsupported operand type(s) for /: 'Student' and 'Student'
A small doubt: for math operation like +, - , * , we can understand which method will be called. How to know which way of calling maps to which builtin method?
Eg. - How to know by calling print(a) will call __str__() ?
google or by reading document. You can search - print() function's magic/inbuilt method. like that
also please explain the difference between data type and class.
is int, list , str a class or are they data type?
it's actually "syntactic sugar" at 1:31
Thanks a lot sir you cleared my doubts
how is it possible to call methods by the class, shouldnt there be an object first and then call the method?? someone please clarify. thanks in advance
inside int class in add function self is argument which means add method is instance method.why we are able to call "int.add " it should be object.add()
class student:
def __add__ (self,n1,n2):
s=0
s=n1+n2
return s
s1=student (1,2)
print (s1)
#will it show error dont say #indentation error becoz i had types
Thank you so much!
Just Enjoyed It Thanks
Please make video on meta class in python
Need Help
can we overload operator for two different classes obj
for example:
class Electonic_Device:
brand= "Apple"
def __add__(self, other):
a=self.brand
b=other.size
return a+b
class Pocket_gadget:
size= "12 inches"
if __name__ == '__main__':
mobile=Mobile()
m1=Electonic_Device
m2=Pocket_gadget
print(m1+m2)
print(s1.m1 + s2.m1)
if we can simply add by this statement why this then??????????????
Awesome Awesome Awesome
So amazing sir.. Thank you for the awesome tutorial.
You are just a flame sir G
As useal greater explanation sir💯💯