I really Want to thank you Navin Sir..My college faculty never focus on the concepts of programming they are just making us rattutota... Thank you so much sir for coming on youtube and helping the students
I was made mistake while Entering the code like (stopiteration...but the s should be caps ) after watching your comment I entered Caps S Now I Got the correct code without error thanks... 👍🥰
ಸರ್...ನಿಮ್ಮ teaching ನನಗೆ ಬಹಳ ಇಷ್ಟ. ಈ videoಇಂದ ನನ್ನ ಎಲ್ಲಾ doubtಗಳು clear ಆದವು. ಧನ್ಯವಾದಗಳು. సర్...మీరు teaching నాకు చాలా ఇష్టం. ఈ video నుండి నా అన్ని doubtలు clear ఆయింది. ధన్యవాదలు. ಜೈ ಕರ್ನಾಟಕ (జై కర్నాటక)!! ಜೈ ಕನ್ನಡ (జై కన్నడ)!!
I just debug and found how that statement for i in values just calls the next function in Topten class , every time after printing the value of i . This is awesome . You should include a debug session in this video itself.
concept is extremely good no doubt on that, but your new look does not matching with personality..... but really your teaching style is awesome, thank god that you are providing such valuable knowledge with free of cost...
I really want to Thank you Sir for all the efforts and also for your nice energy, I hope that you still have this awsome energy and vibes, God bless you !!!
modified iterators form where to start and where to stop: class ur_choice: def __init__(self, num): self.nums = int(input('enter from where to start')) def __iter__(self): return self def __next__(self): if self.nums
It will be very very gladful if you give sometime in answering the good questions asked by us. Because we get into some confusion whose answers are not available on google. Then we got stucked there. So please at least give us any opportunity to get the confusion clear in between 2 days so that we will also don't lose the interest in clearing the questions. If you don't have that much time then you can also answer only necessary and tough questions.
agree.. but thing is not everyone read comments or those who read dont go deep down in comment section, Just like i replied your comment after one year lol
'1' will be printed twice as the 'for loop' always starts from the 1st element in the list. so both are different things and it will give the twice ones then will continue up to what we want to print.
internally the list is an iterator that has next and iter methods implemented and that's why you could use the for loop in list. What Navin teaches is you could create your own custom iterator
To be honest i understood this better from u sir in comparison to code with harry ,i m not comparing but actually u r a little better in explaining , don't kill me code with harry fans i am also his fan it's just my opinion
Sir, where have you learnt all this stuff . I am watching the whole series,your concepts are strong. Can you please tell me which course or way should I choose , For web development via. Python. I am cs student. 2nd yr
The way sir explain things is clear that its his past over all experience and strong understanding of OOPs, The reason i said this because every developer has its own way to clear concepts, Maybe you clear your concepts by watching or reading other videos or book.
Can someone or Navin tell me this that why are we not converting that TopTen class object 'values' to iterator object i.e like values = iter(values) As you are not creating iterator object in last example how is __iter__ method getting called or how is it working without it. As far as i know if we create an object of class only init method gets performed without calling. Please Help me with this. And Cheers to your work Navin. Thank you very much
hi sir,I don't have IT background ,completed B.Sc. Zoology in 2013, now keen to join IT field,so can I start my career in Python ? Are jobs available for fresher Python Developer in market? Could you please guide?
@@telugutravellerraj You first have to define a class named Str and define init method which takes in a string ... Remember the case sensitivity And it still won't output yellow ... It will print the object itself
Under the def __iter__() method, why are we returning self only? And what does he mean by 'returning the object' when using this method? It's just a self keyword with no parameters. What does this mean? Please help
Write a python program using recursion to traverse every single element of the nested list. [10,20,15,[11,”hello”,25.5,[123,15,”hi”,[10,20],52],100,200],15,50,[51,”welcome”],1000 ]
@prsh1989 for suppose, if u have a string list and then u r trying to check if the list contains one particular value then u need to use iterator to check whether that specific value is present or not. Let us consider another example, suppose u r building a well built structure and if u don't know the length of list or any collections then u need to use next method in iterator and fetch the values if the list contains values in list
sir!!!! in the before example u have shown the repeation of values getting in output...but in this example why it is not repaeting 1 and taking next values......
if you are beginner thn go with loops , it will work, in time with experience you will understand things on your own, thn you can use iterators. Its not like you cannot build a project if you dont know, "how to create your own iterators". But its a good to know thing, help you to clear deep concepts .
first example in list: values are repeated but while creating our own iterator values not repeated why this is happen plzz give me the difference of this scenario
In first example with list, if you observe carefully, he is performing for loop on the list object not on the iterator (it). If you perform for loop on "it" it would continue from where you left using "it.__next__()" function.
Sir the video is a little bit confusing regarding creating an our own object of iterator My doubt is initial part of video we created our own iterator object that is it,then what is the difference
What happens if we print(next(it)) beyond the range of list? I mean what if we use print statement 6 time if the list has only 5 values? And can we access the index of an element using iter() and next()?
I really Want to thank you Navin Sir..My college faculty never focus on the concepts of programming they are just making us rattutota... Thank you so much sir for coming on youtube and helping the students
What is meant by rattutato
@@balla4004 He means rattu tota.
Our college also the same scenarios happens
@@balla4004 means they just make student memorise programing
In pycharm you can use (control + d) to copy the line and paste it onto the next in the place of using (ctrl + c) and (ctrl + v).
Thanks 👍
Thanks Buddy😊
I'm pretty sure it's the same for all windows programs. You can even copy youtube comments this way.
Thanks bro
print(next(values)) prints 1 and also changes the state of the iterator after which num = 2. So the for loop will print the numbers from 2 to 10.
The raise keyword is used to raise an exception. You can define what kind of error to raise(here its StopIteration).
I was made mistake while Entering the code like (stopiteration...but the s should be caps ) after watching your comment I entered Caps S Now I Got the correct code without error thanks... 👍🥰
ಸರ್...ನಿಮ್ಮ teaching ನನಗೆ ಬಹಳ ಇಷ್ಟ. ಈ videoಇಂದ ನನ್ನ ಎಲ್ಲಾ doubtಗಳು clear ಆದವು. ಧನ್ಯವಾದಗಳು.
సర్...మీరు teaching నాకు చాలా ఇష్టం. ఈ video నుండి నా అన్ని doubtలు clear ఆయింది. ధన్యవాదలు.
ಜೈ ಕರ್ನಾಟಕ (జై కర్నాటక)!!
ಜೈ ಕನ್ನಡ (జై కన్నడ)!!
kannada pig idli sambhar
Sir, when will you make videos on tikinter and other python GUI?
sir can you put another vedio on this. i dint understand completely.
I just debug and found how that statement for i in values just calls the next function in Topten class , every time after printing the value of i . This is awesome . You should include a debug session in this video itself.
Chandra Sekar how can for loop call next method?
wow you really explain well and are one of the few indians that have no accent almost respect
omg you are a true programmer :D i lauoh so hard when the output print None. i like you debuging method
at which point in the video?
Nice mustache! It suits you Sir. :-)
Sir can you please create video on data structure and algorithm
watch jenny lectures for ds and algo
watch code with harry .. thank me later
@@bhaveshjhawar9532 thank u
concept is extremely good no doubt on that, but your new look does not matching with personality.....
but really your teaching style is awesome, thank god that you are providing such valuable knowledge with free of cost...
this we can use for interview question but for loop is the best. I haven't used this loop in my entire life
I really want to Thank you Sir for all the efforts and also for your nice energy, I hope that you still have this awsome energy and vibes, God bless you !!!
very interesting and knowledgeable tutorial.👌👍
Also very interesting mustache
(❁´◡`❁)(●'◡'●)
Sir,
Why can't we use break in else part to stop the execution of for loop ?
Break is used only inside a loop
The when you say Iterators. How cool is that..
whether during the creation of the object itself __iter__() method is called just like __init__() method?
Is __iter__() method is called only once?
This was exactly what I needed thank you
seems like you are an music artist, do u use python in music some way?
modified iterators form where to start and where to stop:
class ur_choice:
def __init__(self, num):
self.nums = int(input('enter from where to start'))
def __iter__(self):
return self
def __next__(self):
if self.nums
I like your learning style
It will be very very gladful if you give sometime in answering the good questions asked by us. Because we get into some confusion whose answers are not available on google. Then we got stucked there. So please at least give us any opportunity to get the confusion clear in between 2 days so that we will also don't lose the interest in clearing the questions.
If you don't have that much time then you can also answer only necessary and tough questions.
agree..
but thing is not everyone read comments or those who read dont go deep down in comment section,
Just like i replied your comment after one year lol
Can u help for one doubt please I'm stuck for days
@@guru_bro Where?
@@OasisFinder what does iter Dunder method do and y it returns self what is the use of returning same object which is passed?
@Telusko, you made a slight mistake, in normal for loop in your example its not the int which implements iterable but the list
i geniunly have a hatred toward people using light mode
and instead of giving exception in else part can we give break statement at the end of if statement?
I don't think you could. Break works for loops, but IF is a conditional operator.
not break
but breakpoint will work
@@rajeshwardutta switch is also conditional entry but it supports break..its not a loop
Iter is linked to next , how and what it's doing,(return self) !
I could not understand the benefits of iterator over cute for loop
@@harshavardhandsh5190 used in data structures
Excellent tutorial 👍👍
Dil se dhanywaad🙏✌️🤗
after a long time i have seen your mustache
If you want to work the loop for multiple times put "self.num = 1" in else condition.
'1' will be printed twice as the 'for loop' always starts from the 1st element in the list. so both are different things and it will give the twice ones then will continue up to what we want to print.
nope
It's very funny when you said to NONE iteration "eehh HOLD on"
What is the use of iterator while we have a for loop and we can go for a every element of the list....
same queston
same question here too
I just found it, its because iterators use much less resources than the traditional loop
internally the list is an iterator that has next and iter methods implemented and that's why you could use the for loop in list. What Navin teaches is you could create your own custom iterator
actually for loop made up of iterator object
To be honest i understood this better from u sir in comparison to code with harry ,i m not comparing but actually u r a little better in explaining , don't kill me code with harry fans i am also his fan it's just my opinion
Hello sir, love from Pakistan...!
Sir, My Final Year Project is on Virtual Mouse using Hand gestures using OpenCV and Python,Can you please help me in this,Sir?
Nothing is free
Good sir ji👍👍👍
sir i think u forgot "encapsulation and interface " topics....
Sir, where have you learnt all this stuff .
I am watching the whole series,your concepts are strong.
Can you please tell me which course or way should I choose ,
For web development via. Python.
I am cs student.
2nd yr
Even I am second year student, can you tell whether you are understanding oops concepts?? I'm not able to get it
@@mohammadmohsinmohammedmohs9717 seach for "Corey Schafer OOPs tutorial in Python"
The way sir explain things is clear that its his past over all experience and strong understanding of OOPs,
The reason i said this because every developer has its own way to clear concepts, Maybe you clear your concepts by watching or reading other videos or book.
Experience.
What is going on behind for loop it is good,,,, but what is the use of iterator
can we use break instead of "raise stop iteration"
same doubt
@@virtualmagic5489 break can only be used in for loop and switch i guess
No need to raise an Exception here, The return statement should belongs to if block. Then it'll be fine 👍
instead of for why we don't use
while i
sir can you let us know a real life example where we use iterator
Sir can u make video for machine learning usking sklearn lib for data science
I'm confused. Couldn't we just print "nums" to output the values? Why did we need a "for" statement to display all 4 values?
Can someone or Navin tell me this that why are we not converting that TopTen class object 'values' to iterator object i.e like values = iter(values)
As you are not creating iterator object in last example how is __iter__ method getting called or how is it working without it.
As far as i know if we create an object of class only init method gets performed without calling.
Please Help me with this.
And Cheers to your work Navin.
Thank you very much
Excellent video! Thank you
hi sir,I don't have IT background ,completed B.Sc. Zoology in 2013, now keen to join IT field,so can I start my career in Python ? Are jobs available for fresher Python Developer in market? Could you please guide?
i'm in somewhat same situation
Python is booming in terms of job in 2020.
even if you are not from IT learn this , take your time and you can
one more video on iterator please
class Habit(Str):
pass
print(Habit("yellow"))
O/p :. Yellow
How it works internal
Plzzz sir it's important for me
It's so simple bro
Pass used so it will skip that part
It gives error "NameError: name 'Str' is not defined". How did you get output 'Yellow' ?
@@telugutravellerraj You first have to define a class named Str and define init method which takes in a string ... Remember the case sensitivity
And it still won't output yellow ... It will print the object itself
Sir, Pune MeetUp when....???
print statement prints 1 and the for loop prints 2, 3, 4,..., 10
Under the def __iter__() method, why are we returning self only? And what does he mean by 'returning the object' when using this method? It's just a self keyword with no parameters. What does this mean? Please help
Bro do u got ur answer please explain me. I'm stuck for days
Thank you Mr. Reddy!
Write a python program using recursion to traverse every single element of the nested
list.
[10,20,15,[11,”hello”,25.5,[123,15,”hi”,[10,20],52],100,200],15,50,[51,”welcome”],1000
]
why we use iterator? I mean if we have for loop, then why iterator? Any real world programming example where this is used?
have same question
@prsh1989 for suppose, if u have a string list and then u r trying to check if the list contains one particular value then u need to use iterator to check whether that specific value is present or not. Let us consider another example, suppose u r building a well built structure and if u don't know the length of list or any collections then u need to use next method in iterator and fetch the values if the list contains values in list
Thank you Mr. Navin !
class iterator:
def __init__(self):
self.a = 0
def __iter__(self):
return self
def __str__(self):
return '{}'.format(self.a)
def __next__(self):
if self.a
In if condition can we use break to stop the iteration 9:33
how many of you went back video and see he have mustache(search meaning in google) of our teacher 😂🤣🤣
Why do we need the iter() method while defining our own iterator???
Yeah no need of iter if our class have next method and we are not even calling iter
You are making your object an iterator ,next method can only be used if there is an iterator.
class TOPT:
def __int__(self):
self.num=1
def __iter__(self):
return self
def __next__(self):
if self.num
@Leonardo cool thanks
That is --init-- not --int--
Your mistakes for loop...for I in values
Print (i)
sir!!!! in the before example u have shown the repeation of values getting in output...but in this example why it is not repaeting 1 and taking next values......
have you cleared that doubt ? if yes please explain
By this way are v overloading the Iter & next inbuilt function ?
yes sort of.
hiii bro, create the own class that not repeat again values...but inbuild the value or nums it can repeating ....i wanna clear about it this video
I am beginner in coding... started directly with you videos. Doubt here... with for loop code simpler than iterator then why iterator should be used?
if you are beginner thn go with loops , it will work, in time with experience you will understand things on your own, thn you can use iterators.
Its not like you cannot build a project if you dont know, "how to create your own iterators".
But its a good to know thing, help you to clear deep concepts .
@@OasisFinder Thanks
first example in list: values are repeated but while creating our own iterator values not repeated why this is happen plzz give me the difference of this scenario
In first example with list, if you observe carefully, he is performing for loop on the list object not on the iterator (it). If you perform for loop on "it" it would continue from where you left using "it.__next__()" function.
Sir why can't we use break statement 🤔🤔
bcoz break keyword is used to break loops but here if condition is used
Good
def __iter__(self):
return self
What is the reason of using it? Can anyone explain?
If you type
print(next(values))
after the for loop, you will get an Error.
it should not print the value "1" again because now value pointer has moved to next which is "2"
sir what is the advantage of iterator over for loop
please make series on python turtle
nice video
What does that __iter__() method do here sir
"try and except" also could be used right? Was there any reason that stopped you to use "try and except" ?
since we already have for loop to iterate the list then why are we making things more complex by making this iterator
Sir the video is a little bit confusing regarding creating an our own object of iterator
My doubt is initial part of video we created our own iterator object that is it,then what is the difference
There was an indentation error at return val thats why its repeating., remove 1 space before return.
break also possible
Can we say we are using method overloading here?
sir after class python is becoming difficult any suggestion
class TopTen:
def __init__(self):
self.num = 1
def __iter__(self):
return self
def __next__(self):
if self.num
self.num +=1
You have written self.num +=self.num +1...Which is incrementing the value not by 1 but 2...And the next time by 4..And so on..
Finally I got this yayyyyy
Sir, please make on video of game development and app development.
What happens if we print(next(it)) beyond the range of list? I mean what if we use print statement 6 time if the list has only 5 values? And can we access the index of an element using iter() and next()?
why even without calling iter and next methods they are running
what is the use of- values=toptens ?
Excellent tutorials sir! from Pakistan
If something is returned in a function it return value to function call right ? What is happening to return here. Object is being returned......
Sir other way to stop the loop is self.num=self.num+0 , is this right sir
Can someone help me know that what happens after "for i in values " is called ?
__iter__() is called and then __iter__() calls __next__().
__next__() runs till the exception is raised.
@@ContentArm can u elaborate on this please maybe on insta
Navin, pls stat what is the purpose of __iter__ method at all
Sir what if want user input??
So next topic would be Generators
if I use exit() instead of Raise Iteration then what problem would I face?
A small suggestion. It confusing when you say least instead of list. Those 2 are very different.