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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.

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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

very very good

I love this vid! It's so simple and accurate! Thanks <3. I spend 5 minutes to read like 10 first google results but no one respond like this.

Just beautiful😊. Do more videos. Can you give the versions of python these components first appear in python.

Will you cover more 'Gang of four' patterns based around your explanations?

this is pretty funny

Thank you.

Thank you.

I wish people would stop applying those "design pattern" principles to python. They do not belong here.

This channel is an example on why teacher matters!!!

you are wasting memory by storing the excel data in the interim data types. you also make things slower.

Honest opinion: don't create abstractions on your libraries to hide them. The principle here is YAGNI: you ain't gonna need it. If you actually replace a library, replace it manually. If you do that nearly yearly, *then* create an interface. But don't write interfaces or other abstractions for components that are never going to be altered.

I love you man, clear and to the point, I don't even do SWE I simply enjoy solving problems.

Honestly that cant be so simple My brain says for me Factory method pattern is a method that return an instance Abstract method pattern is a multiple methods that return an instances

Thanks for your help! Keep making these videos, mate!

I love you, you have saved from the predicament which i was deeply , had this not happen i wiuld have failed my task worth 50% my ict grade ❤

easily understand, thanks!

Nice

Thx big boss

Thank you! You gave me an idea. I saw the file layout you have, and it looks like it's a flat layout at the top level. If instead you put your file (random.py) inside your own python package/dir (eg, pfe/random.py), then you don't need to change anything in your original random.py file and can run it as-is without any errors. For example: If your current working dir shows that this file exists: pfe/random.py then you can do: python3 -m pfe.random to run your program successfully. It looks as if pfe.random (pfe/random.py) is searched for first from the CWD, is found, and then your "import random" statement runs successfully, probably because the full names of "pfe.random" and "random" are now in different namespaces and don't conflict. This is what I'm thinking is going on, I'm not 100% sure but at least it's working this way. No errors, and it displays the expected random number output. Thank you for your video! It helps :)

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❤❤❤❤❤❤❤🎉🎉🎉thank you

Thank you❤❤❤

Thank you

❤❤❤❤❤❤

Do you use another software to make this work?

I think the whole confusion with understanding the role of "self" comes from an ill chosen word "self". Since the word "self" in Python is an arbitrary string and not a reserved word (could be anythinh, check for yourselves with a snippet of code :), for educational purposes I am replacing "self" by "object" or "instance" and such code becomes instantly self explanatory (at least for me). In the example provided "e" is a name of an instance.