Python Closures for Beginners

Python Closures for Beginners | Python tutorial

Рет қаралды 7,591

Dave Gray

Күн бұрын

Пікірлер: 34

@andrewclarke6916 Жыл бұрын

A clear description and example of closures, which can be very confusing at first when you're a beginner.

@DaveGrayTeachesCode Жыл бұрын

Glad it was helpful!

@johnaweiss 7 ай бұрын

4:17 If you know there's exactly one coin, you don't have to say str(coins) you can just say one

@muzhaffarhaydar7928 Ай бұрын

thank dave

@johnaweiss 7 ай бұрын

Closures are easier in VBA. It's called a static variable. No need for child functions. It's just a normal function-scoped variable who's value persists between calls.

@kamranzamanni6826 7 ай бұрын

Very informative video, thank you!

@ahmad-murery Жыл бұрын

I like this kind of games example where we keep refactoring the code as we learn more and more. 16:23 Unless it's intended I think there is no need for " " in lines 62 and 63 (Trying to save some spaces😁) Thanks Dave,

@DaveGrayTeachesCode Жыл бұрын

Total preference of spacing. I like to keep the lines separated, but you can go either way you prefer. Thanks Ahmad! I'm glad you like how we keep refactoring the example. 🚀

@ahmad-murery Жыл бұрын

@@DaveGrayTeachesCode Fair enough, Refactoring gives me a sense of satisfaction that the work has been done but there is room for some improvements (although this is not always the case)

@ahmad-murery Жыл бұрын

@Google Personal Maybe I missed that that. I don't know why you're interested in my last name, anyway, it's Murey not Murery and it's an Arabic male name and it can mean several things such as: What is nurtured, what is observed, protected, preserved, valued, protected, submissive, watched

@ahmad-murery Жыл бұрын

@Google Personal it's مرعي but I couldn't find a better way to pronounce it in English and I could be wrong

@mohammedaljaf6210 Жыл бұрын

Hi! Can you make a video on calculation a cube volume, plotting it and rotating horizontally 360 degree? That will be helpful...

@khalilbenmeziane8836 Жыл бұрын

thank you mr dave i learned a lot from you

@DaveGrayTeachesCode Жыл бұрын

Glad to hear that!

@kevinerose 7 ай бұрын

How is this useful? It would seem to be similar to a class but only one method is allowed to be used. The function variable is initialized with 3 coins. Is it simply to set initial values, then make changes to the values as the closure function is called? To count something up? or down? Such as the amount of coins.

@GregPeters1 Жыл бұрын

Appreciate you, Sir!

@DaveGrayTeachesCode Жыл бұрын

Thank you!

@alexanderkomanov4151 Жыл бұрын

As perfect as usual!

@DaveGrayTeachesCode Жыл бұрын

Thank you!

@utinthein7274 Жыл бұрын

Thank You, Sir.

@DaveGrayTeachesCode Жыл бұрын

Welcome!

@willyhorizont8672 Жыл бұрын

09:36 I made small changes and I think closure is more like OOP classes but In FP way :D """ def new_amusement_arcade(name='anonymous', coins=0): def play_game(): nonlocal coins coins -= 1 print(f' {name} has {coins} {"coin" if coins == 1 else "coins"} left.' if coins >= 1 else f' {name} is out of coins.') return play_game tommy_play_game = new_amusement_arcade(name="Tommy", coins=3) jenny_play_game = new_amusement_arcade(name="Jenny", coins=5) tommy_play_game() tommy_play_game() jenny_play_game() tommy_play_game() """

@dickschweiger289 9 ай бұрын

Excelent

@diewahrheituberfakten4800 Жыл бұрын

Isn't it faster and easier to use .format() instead of concatenating strings (@3:43)?

@DaveGrayTeachesCode Жыл бұрын

Funny you should mention that because formatting strings - specifically f-Strings - is the next lesson in the series. Older methods like format() and %s are also covered.

@diewahrheituberfakten4800 Жыл бұрын

@@DaveGrayTeachesCode it is a great series - thank you for doing it!