please do more SQLAlchemy 2.0 videos with postgres if possible. thanks

Thanks a lot, I've been scratching my head over this for hours,

Have been looking for a video with this kind of explanation, thank you so much. Superb Video!😊

It's said too well, I have been troubled by the concept of closure for a long time, and I have watched many videos without a solution. When I tried to learn JavaScript, I found that I couldn't get around it. When I came back to watch this video again, I suddenly understood it. It turns out that it is so similar to the class usage in Python. Thank you,😀

thanks

I believe list comprehension is also just a generator. You can use it to create non-lists too, such as sets or tuples. numbers = [1, 2, 3, 4] doubled = tuple(2*x for x in numbers) # tuple of (2, 4, 6, 8)

wow, you explained it really clearly! I knew about this feature and how to use it, but didn't fully understand it's true use. thank you very much, keep it up!

Wow! This is something I've never knew. Thanks! I'm not sure where to use it tho

thank you very much for this clear explaination video on closures..

where is your constructor

Love these videos! Keep posting, thanks 😊

cant we just write a serializer function (not a method in a class) and use it? why do we need to make it to a class in the first place?

ashamed to say but even though I've been working for 2 years I had to search how to flatten a list using list comprehension, you explain it so well and simple, thank you and good job!

Helped me a lot, thanks!

Man, you are amazing! When you started with a brief history... it`s just fantastic...

Excellent video

excelent work

awesome example

Does this also work in a Flask webapp?

Allways use dark mode and big fonts.

thank you bro ❤❤❤

how to Downsides of an ORM, i waiting for this

I really like the way you teach. Great explanation, I'm binge watching your videos. Greetings from Brazil

I'm watching all your videos, wish I had known this channel before

This channel deserves more views. Great job

I understood everything so quickly, thank you

Wow. such simple explanation, Great!, thanks

I like you vids, groupby is a handy one to know! For the second half with the dictionary, if it were me I would write it using setdefault. So, for name, department in employees: grouped_by_department.setdefault(department, []).append(name)

A superb explanation. Thanks for taking the time to explain!

Very clear explanation. Great use of dir and inspect commands.

OMG THANK YOU FINALLY IT MAKES SENSE IT ALL MAKES SENSE

Knowing much about Methods vs Functions, you still managed to blow my mind with your information here. Thanks.

Given you went to the effort to mention python decimal data type, here are the results using that data type: # python 3.11.0 from decimal import Decimal result: Decimal = Decimal(Decimal(0.1) + Decimal(0.2)) print(f'{result}') # 0.3000000000000000166533453694 print(f"{result.quantize(Decimal('0.1'))}") # 0.3 print(f"{result:.1f}") # 0.3

Loved the pic of the 5 1⁄4 floppy disk! Flash back, indeed.

The side by side comparison of the closure compared to a class was the epiphany I needed. I appreciate the time you spent making this (and the other) videos! I like how you get to the point and use really simple code to demonstrate the concepts. You should team up with ArjanCodes sometime to create a co-shared video.

Hi Instructor, We discovered your Udemy course and we’re impressed by its high quality. we noticed that the course’s current enrollment numbers and reviews don't fully reflect its potential impact. We’d love to discuss how we can help increase its visibility and engagement. Are you open to a chat?

This was an awesome, simple presentation. I've found your videos very helpful. (even as an advanced coder)

Excellent, simple,clear,to the point explanation

"if you're watching this video you probably did something like.." idk man i just got a ytb recommendation but nice video tho 👍

thanks man wonderfully explained

Oh wow! thank you so much. Your videos are so clear on python basics and OOP. I am going through all your videos now. Self kept tripping me up unfortunately... until now! I never got a clear answer as to why we have two parameters in the method.

7:05 I can bring something of value to this! (not sure if you have covered this in other videos, yt literally just recommended this one video to me.) But you can define and require a function that will do the conversion for you. Your converter object could be constructed with a dependency for a function that takes in a string and spits out the type. @dataclass # for the sake of simplicity in comments class Converter[T]: convert: Callable[[str], T] def convert(self, data: str) -> T: return self.convert(data) This way you don't have to worry about getting the type from dunder fields, or worry that they will work with exactly one string argument. my_int = Converter(int).convert("3") `int` can be used as such because it's a perfectly valid callable that takes in a string and returns an integer. Also, because type checkers are intelligent, you don't have to specify the type for Converter; it will infer from `int` that T is int. Example with datetime: my_dt = Converter(datetime.fromisoformat).convert("2024-11-06T15:54:00") This works because fromisoformat is a class method (a callable) that takes in a string, and spits out a datetime. And type checkers look at the return type of fromisoformat to infer that this is a Converter[datetime]. All this said, let's simplify all this. We don't need a class. A simple function is perfectly valid. One can define a type alias as such: type ConverterFunc[T] = Callable[[str], T] and then, you can require a ConverterFunc anywhere else in your code, and any function that fits the signature will pass type checking. def read_date_from_user(convert: ConverterFunc[datetime]): from_user = input() # sanitize, if necessary return convert(from_user)

lets say we have a class called salary. This class has a method increase_salary which increases salary 1%. So are we going to use self here and if yes how do we reference the first name and last name and the salary parameter?

Can you please show using self across other methods within or outside the classes?

short and to the point. great work

Thank you for this :)

I appreciate your work and I trust in this.

God, on "get the terminology right" section, I just felt that I wanted this! This is the type of video I want to suggest everyone! I request you to make more video like this! This got me subscribed to your channel.

excelent

excelent