What is self in Python?

Рет қаралды 23,373

Күн бұрын

Python's "self" is really just a variable that points to the current instance of our class. Every method you define must accept "self" as its first argument.
Read an article version of this video at pym.dev/what-is-self/
Find more Python screencasts at pym.dev/screencasts/
00:00 A Python class with self in each method
00:28 Do we need that self argument?
01:22 What is self?
02:26 But what does self mean? Could we rename it?
03:10 Recap: self is the first method of every Python class
#python #oop

Пікірлер: 45

@saluberis 3 ай бұрын

Add "Python ASMR" to the video title

@wisdomlounge4452 Ай бұрын

Wow! And I was about to comment about how this guy's voice has a perfect tone for ASMR, lol!

@daved8698 Ай бұрын

the logo "GIRLS" in front of the Tshirt

@malakhassan9816 25 күн бұрын

Yes

@InfoSecGSO 21 күн бұрын

Thank you. Well explained. Subbed.

@techrazor3280 13 күн бұрын

Can you lower the audio? Its very loud.

@SoniaChavez-je7hq 3 ай бұрын

Very interesting and helpful explanation. You are an excellent teacher. Good work !

@PythonMorsels 3 ай бұрын

Thank you! 😊

@abuali5513 3 ай бұрын

I like your calm voice. Thanks 🙏

@mathewmcfool 3 ай бұрын

Thanks, u da man!

@ACCESSZERO1 3 ай бұрын

People here complaining about you being too silent, bug frankly it like it, its nice and soothing ✌🏻

@Code4Life400 3 ай бұрын

I thought there was a problem with my hearing aid 😂

@techrazor3280 13 күн бұрын

No!! He is extremely loud. My eardrums are exploding. 📢🔊🔊

@hudatolah 2 ай бұрын

I like the short content. I also like “this” better because I am already used to that from C++ 😂

@vorfreu 6 ай бұрын

too silent, you can make the video a bit louder

@ichoudhury007 5 ай бұрын

I think sometime soft soothing voice can be more effective at honing the lesson better than being loud and rambunctious :)

@Thekingslayer-ig5se 20 күн бұрын

@@ichoudhury007it’s good but at times it’s sleepy 😊

@itsomarka 3 ай бұрын

cool stuff, but why are u whispering ?

@PythonMorsels 3 ай бұрын

For more on Python's classes, see this playlist: kzfaq.info/get/bejne/ra-hZtyKp6u-h4U.html There's also a text-based version of each of those videos at www.pythonmorsels.com/articles/class/ And for practice making your own class, try out this Python Morsels exercise: www.pythonmorsels.com/exercises/7b02e2aae0634dc4a6f8cec15d1e1a8a/?level=beginner

@chrishabgood8900 2 ай бұрын

This is why I prefer ruby. Self is the instance, no need to pass it around.

@PythonMorsels 2 ай бұрын

As a method caller, we don't actually need to pass it around because Python does the "passing" part for us. But as a method definer, we do need to accept it as an argument which will be passed in. That's not to say Python's style is better though...it definitely takes some adjusting to get used to that passed-in self!

@yoavmor9002 5 ай бұрын

Yet another Python quirk that becomes IMMEDIATELY simpler when you write a bit of C. There is no such thing as a function that can magically access some local variable. For the function to have access to the data of the object, the object must be passed into the function. That is self.

@yoavmor9002 3 ай бұрын

@@considerallthat3310 nah but I am studying computer engineering abroad and studying C really cleared up a lot of stuff

@akashbharadwaj1 3 ай бұрын

@@yoavmor9002 awesome explanation man... really great.. so can we have different words for each instance? like can we have self in one method..... this in other method... or xyz in another method..... can we have different ones in each? i am not asking about best coding pracitces.. i am asking CAN we do it? can it be done?

@akashbharadwaj1 3 ай бұрын

i want to add that your comment made the video meaningful to be very honest. i read your comment and watched again.. and everything was so clear .. thank you sooo sooo much. really. god bless you thanks

@yoavmor9002 3 ай бұрын

@@akashbharadwaj1 Yeah it's possible, all it is is a name for a parameter. You can call it self in the __init__ function, call it stringable in the __repr__ function and call it this_object in a func function

@KW-jj9uy 3 ай бұрын

Still, it makes the syntax look gross..... self everwyere as a hidden 1st variable to function...

@shanmugaraj4416 19 күн бұрын

"pyladies", "django girls"

@akashbharadwaj1 3 ай бұрын

awesome explanation man... really great.. so can we have different words for each instance? like can we have self in one method..... this in other method... or xyz in another method..... can we have different ones in each? i am not asking about best coding pracitces.. i am asking CAN we do it? can it be done?

@PythonMorsels 2 ай бұрын

Absolutely! 👍 You CAN though of course you shoudn't. Here's an example: pym.dev/p/2cn9c/

@hw_was_taken423 4 ай бұрын

thanks for the guide but bro are you good? You look like you haven't slept in days

@thomasstien2134 4 ай бұрын

I think bro might just be faded

@wisdomlounge4452 Ай бұрын

Ironically, his voice has that perfect ASMR pitch that, while apparently not getting enough nightly rest, he can easily talk others into getting the kind of profoundly deep sleep that he himself needs!