Advanced Dictionaries: defaultdict in Python

Рет қаралды 31,204

Күн бұрын

Пікірлер: 40

@Revamped1953 Жыл бұрын

I learned how to use default dictionaries! thanks for these videos again super useful! please don't stop making content!

@Лена-в1н6ы Жыл бұрын

This is my first comment in English on utube. I liked your videos, this and others, they are all very interesting and useful. Thank you very much!

@jasonchien5359 8 ай бұрын

Amazing video regarding the usage of defaultdict, learnt a lot and I see the benefits over the default dictionary compare to defaultdict class. Keep up the good work 👍👍👍

@ВладФоменко-р4е Жыл бұрын

I just recently run into this defaultdict in my colleague's code, and now you share what it's all about. How's that work?)) Thank you for a great tutorial.

@SolidBuildersInc Жыл бұрын

This was a Game Changer on Dictionaries for me. I will read the docs....🎉

@aflous Жыл бұрын

@11:44 you still can have some logic using a callable, no need to inherit from defaultdict

@JoseAntonio-jf5lz Жыл бұрын

Excellent explanation, thank you very much.

@kvelez Жыл бұрын

from collections import defaultdict words = ["apple", "banana", "carrot", "avocado", "brocoli"] grouped_words = {defaultdict(list)} for word in words: grouped_words[word[0]].append(word) print(grouped_words)

@turtlecode 8 ай бұрын

Perfect tutorial!

@pawelantczak6476 Жыл бұрын

Is default dict. quicker/better vs standard_dict[new_key]=standard_dict.get(new_key,0)+current_value?

@BenKariuki-s7o 9 күн бұрын

Bro doesn't blink

@pranee31 Жыл бұрын

Please make a video on "how to use OrderedDict in defaultdict"." defaultdict(lambda: OrderedDict())" how this works?

@alexanderkaess9505 Жыл бұрын

Very good explanation

@BioLife_Hacks Жыл бұрын

thanks a lot, this vid is really useful👌

@paulthomas1052 Жыл бұрын

Thanks - very interesting tutorial.

@kiorde Жыл бұрын

Very useful, thanks!

@ayoife3482 Жыл бұрын

Is it just me or is the audio volume low? 🤔

@yomajo Жыл бұрын

It is

@lxathu Жыл бұрын

Thanks. Being spoiled by awk and perl, I thought about having this a couple of times

@kvelez Жыл бұрын

from collections import defaultdict my_list = [1,2,3,44,56,6,65] counter = defaultdict(int) values = { 0: "person0", 1: "person1", 2: "person2", 3: "person3", } for item in my_list: counter[item] += 1 print(counter)

@RamiSobhani 27 күн бұрын

I did not understand much. Could you make another video that explains this concept better?

@kvelez Жыл бұрын

from collections import defaultdict lambda_dict = defaultdict(lambda: "hello world") print(lambda_dict["hello"])

@blendercharacter5418 Жыл бұрын

this is so usful for me right now! Im glad that I found this I'll use it tommorrow ! thank you!

@kvelez Жыл бұрын

from collections import defaultdict tuple_list = [("A",10),("B",4),("A",5),("C",7),("B",1)] grouped_data = defaultdict(list) for k,v in tuple_list: grouped_data[k].append(v) print(grouped_data) grouped_data = {k:sum(v) for k, v in grouped_data.items()} print(grouped_data)

@harsharya828 Жыл бұрын

Please Make Video on Complex Data Type in python.

@sebbyteh9203 Жыл бұрын

although defaultdict is less general compared to the regular dict, I think it's more useful and more powerful than the regular one. it's a shame how underused this function is.

@kvelez Жыл бұрын

from collections import defaultdict class DefaultDicts(defaultdict): def __missing__(self, key): self[key] = value = len(key) return value test = DefaultDicts() print(test["hello"]) print(test["hi"]) print(test)