ALL 11 LIST METHODS IN PYTHON EXPLAINED

Every list method in Python explained in a single video! Did you know all of them? Let me know in the comment section :)
Learn more about copy(): • Your Lists Are Being C...
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00:00 Intro
00:52 append()
01:14 clear()
01:26 copy()
02:48 count()
03:33 extend()
04:17 index()
04:55 insert()
06:05 pop()
06:49 remove()
07:14 reverse()
07:31 sort()
09:02 Conclusion

Пікірлер: 78

  • @dm_5000
    @dm_5000 Жыл бұрын

    Love the channel. FYI, the key in the .sort() method doesn't have to be a lambda function. Any function will work including built-ins and functions you write yourself. Both of your examples would have worked with people.sort(key=str.lower) and people.sort(key=len)

  • @Indently

    @Indently

    Жыл бұрын

    Very true, I often use lambdas in these situations to show that people can really implement their own custom functionality :)

  • @loverboykimi
    @loverboykimi Жыл бұрын

    So handy list aspects. Many thanks.

  • @danielzima9414
    @danielzima9414 Жыл бұрын

    Sadly, this was really great. Concise, comprehensible, your voice friendly, warm and welcoming. Dig this vid a lot, might explore more.

  • @harmly2682

    @harmly2682

    Жыл бұрын

    why sadly bro

  • @kingoreo7050

    @kingoreo7050

    11 ай бұрын

    @@harmly2682they asked for tips at the end of the video, there are no extra tips he could add

  • @jimalix6270
    @jimalix62702 ай бұрын

    Love your channel! Always interesting material, presented clearly and with good examples.

  • @TheKimphoe
    @TheKimphoe Жыл бұрын

    Great video!

  • @hilkiahlavinier
    @hilkiahlavinier Жыл бұрын

    Really love your content. Can you please do a video on time and space complexity with python examples?

  • @Indently

    @Indently

    Жыл бұрын

    I'll look into it!

  • @BAMBAMBAMBAMBAMval

    @BAMBAMBAMBAMBAMval

    Жыл бұрын

    O(1) is 1 action O(log(n)) is wierd(search up "harvard cs50 phonebook" for example) O(n) is as many actions as iterables O(n²) is garbo Example you want to count from 0 to 10: O(1) = [10] O(log(n)) = [1, 2, 4, 8](10 wouldnt be part of the logarithm) O(n) = [1,2,3,4,5,6,7,8,9,10] O(n²) = [[1,2,3,4,5,6,7,8,9,10]1,[1,2,3,4,5,6,7,8,9,10]2,[1,2,3,4,5,6,7,8,9,10]3,[1,2,3,4,5,6,7,8,9,10]4] ect up to 10

  • @asharsumari9313
    @asharsumari9313 Жыл бұрын

    love ur vid. thanks

  • @KRITIPANDIT-dc7yr
    @KRITIPANDIT-dc7yr8 ай бұрын

    I am really thankful

  • @Alextv-tz7tw
    @Alextv-tz7twАй бұрын

    awesome!

  • @muheka20
    @muheka20 Жыл бұрын

    thank u for tutorial. greet from Indonesia 👍

  • @jaquesadv
    @jaquesadv Жыл бұрын

    ❤❤❤❤❤❤ Thanks a lot!

  • @catherinemukunga1787
    @catherinemukunga1787 Жыл бұрын

    wow....thank you so much....

  • @cerealport2726
    @cerealport2726 Жыл бұрын

    nice list!

  • @girishkrishnayadav6693
    @girishkrishnayadav6693 Жыл бұрын

    Very nice superb❤❤❤

  • @dky_code
    @dky_code Жыл бұрын

    Great 👍

  • @michellegresser7389
    @michellegresser7389 Жыл бұрын

    Wie kann ich Wörter nach dem letzten Buchstaben Sortieren? Ich habe versucht wie immer eine Key Lambda usw. Zu setzten....und am Ende ein -1 gesetzt. Aber es es geht nicht

  • @julyp9990
    @julyp99907 ай бұрын

    sir that was amazing teaching thank u

  • @brd-ch5108

    @brd-ch5108

    3 ай бұрын

    Basiji?

  • @-SHEESH-YIKES-
    @-SHEESH-YIKES-2 ай бұрын

    7:11 where i left of coding thx for the video its Awesome sauce

  • @KonradTamas
    @KonradTamas10 ай бұрын

    Your content and you are Great !! What is this notation that you use tho -------> people: list[str] = [..., ....] Im new to this so, this is the first place I saw it and looks clean and informative ! Although if you add some intst there, it wont give you an error, so I dont get the [str] part, its just a hint to increase readability ?? Thx in advance.

  • @surajprajapati3398
    @surajprajapati33986 ай бұрын

    Very nice class I am from india

  • @JustMastermind
    @JustMastermind Жыл бұрын

    Which editor are you using? It looks very clean.

  • @Indently

    @Indently

    Жыл бұрын

    PyCharm

  • @prudhvirajbandi5235
    @prudhvirajbandi52356 ай бұрын

    You super man❤

  • @RobinZuFALL
    @RobinZuFALL Жыл бұрын

    What are the advantages/ disadvantages of using list slicing instead of those list methods? I tend to use slicing allot as it is easier to remember for me.

  • @chrisvinciguerra4128

    @chrisvinciguerra4128

    Жыл бұрын

    Slicing creates a new list, while most of these methods are performed on the list in place

  • @VinothKumar-ut4rj
    @VinothKumar-ut4rjКүн бұрын

    can you explain that you're assigning variable is different way

  • @kvelez
    @kvelez11 ай бұрын

    Great.

  • @masterous
    @masterous Жыл бұрын

    what's the difference between list.clear() and list = []

  • @massy-3961

    @massy-3961

    Жыл бұрын

    Clear is better memory wise

  • @masterous

    @masterous

    Жыл бұрын

    @@massy-3961 thanks

  • @lemmenmin7676

    @lemmenmin7676

    Жыл бұрын

    i think list.clear() means that list = null; // work garbage collector, clean memory list = [] means that list = new list(); // new pointer in memory

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    Жыл бұрын

    Actually “l.clear()” would be more equivalent to “l[:] = []”

  • @oerthling

    @oerthling

    3 ай бұрын

    clear empties your existing list object, while = [] creates a new empty list object. If you don't care about the particular object reference value, the differences are negligible in practice.

  • @faaiidodiineed6924
    @faaiidodiineed6924 Жыл бұрын

    Hi, I hope you are fine. Thank you for your helpful and well detailed videos. I have one request: Can you provide us a video that explains how to convert tkinter multiple files with mysql database into .exe file. Please help.

  • @Indently

    @Indently

    Жыл бұрын

    I recommend breaking that problem down into smaller problems. It's very unlikely I will make a video so specific to that problem.

  • @realcontentgamer
    @realcontentgamer Жыл бұрын

    Wait why is the filename still 'pydec' today is January which means it needs to be 'pyjan'

  • @Indently

    @Indently

    Жыл бұрын

    It's going to get really confusing for people following the file name dates! Because that's when I created those projects ;)

  • @realcontentgamer

    @realcontentgamer

    Жыл бұрын

    @@Indently oh alright

  • @user-zu9zc4rl4e
    @user-zu9zc4rl4e4 ай бұрын

    @8:37 sorting by people.sort(len(name)) why is 'Mario' , 'trump' , 'Luigi' the order as it is not alphabetical for length = 5? It seems to maintain original order for strings of length 5.

  • @MAlanThomasII

    @MAlanThomasII

    3 ай бұрын

    Correct. Python list sorting methods are stable, meaning that equal keys preserve the original order. The video was incorrect on that point.

  • @cerealport2726
    @cerealport2726 Жыл бұрын

    Just wondering what sort of use cases there are for list.clear()? (I've never used it, but that doesn't mean very much!!)

  • @deei5130

    @deei5130

    Жыл бұрын

    its just a little more memory efficient than list = [ ]

  • @cerealport2726

    @cerealport2726

    Жыл бұрын

    @@deei5130 interesting, thanks, I might see what could do for me, I have cases where I cannot avoid lists with 4-5 million elements. Stupid proprietary data environment...

  • @TheMongole24

    @TheMongole24

    Жыл бұрын

    I use lists in a game to create objects from an enemy class. The game runs on a loop and when the player dies, a new game is started and obviously the lists must be reset so that the new game is not already filled with enemies. I use list.clear() for that.

  • @cerealport2726

    @cerealport2726

    Жыл бұрын

    @@TheMongole24 cool, thanks for the explanation!

  • @nakamuramizu..584
    @nakamuramizu..5842 ай бұрын

    Is extend() like concatenation

  • @atharva7616
    @atharva76166 ай бұрын

    Helicopter Helicopter 😂

  • @Jqts369
    @Jqts369Ай бұрын

    Wait….is this supposed to be for beginners cause i have never use people: and list[str] to create a list…..how can i learn methods when i have to stop and go learn this? Idk why this is done when teaching new subjects, or diving into a beginner subject like lists

  • @azizbekbarotboyev8015
    @azizbekbarotboyev80157 ай бұрын

    please hepl : print("Sartirovka") print() s=int(input()) a=[] for i in range (s): a.append() a.sort() print(a) what' wrong?

  • @azizbekbarotboyev8015

    @azizbekbarotboyev8015

    7 ай бұрын

    help*

  • @saaroopsai1063

    @saaroopsai1063

    2 ай бұрын

    a.append(argument), you are missing the argument that's to be added to the list, in your case you are not appending anython to the list.

  • @xuzm
    @xuzm10 ай бұрын

    Can someone explain the way the code is written? Usually i do Create_list = [1,2,3,4] But his way is Create_list: list[str] = [1,2,3,4] Could someone explain this type of style?

  • @artorias3904

    @artorias3904

    7 ай бұрын

    It's just type hinting, it isn't required, lists are the same

  • @drugho92
    @drugho92 Жыл бұрын

    Helicopeeer

  • @mtalhakhalid1679
    @mtalhakhalid16794 ай бұрын

    Mostly you ise dunder in class

  • @IsaacGunananth-st7wz
    @IsaacGunananth-st7wz5 ай бұрын

    HI, why did you put "people: list[str]" wouldn't "people = [ "Mario", "Elon", "Trump" ]" do the job?

  • @Indently

    @Indently

    5 ай бұрын

    Because we are adults now, and Python offers beautiful tools to simulate static type checking :)

  • @lemmenmin7676
    @lemmenmin7676 Жыл бұрын

    TypeError: 'type' object is not subscriptable

  • @Indently

    @Indently

    Жыл бұрын

    I think you meant to paste that on Google search.

  • @lemmenmin7676

    @lemmenmin7676

    Жыл бұрын

    @@Indently No. This does not work on all compilers.

  • @Indently

    @Indently

    Жыл бұрын

    Please explain what you mean.

  • @chaddaifouche536

    @chaddaifouche536

    Жыл бұрын

    @@Indently He tried your code in an older version of Python and had this error because subscriptable types (like list[str]) have only been added since Python 3.9 (and you can get them with `from __future__ import annotations` if you have Python 3.7 or 3.8). He could use typing.List instead of list or just not write the annotations.

  • @callbettersaul

    @callbettersaul

    Жыл бұрын

    @@lemmenmin7676 Python doesn't have any compilers. Python is interpreted language.

  • @craigslistbuslistingsofnor6494
    @craigslistbuslistingsofnor64945 ай бұрын

    you lost me at about the 10th elons

  • @itsmaxim01
    @itsmaxim01 Жыл бұрын

    Array, not list.

  • @Indently

    @Indently

    Жыл бұрын

    Please be more specific about what you're trying to explain.

  • @chaddaifouche536

    @chaddaifouche536

    Жыл бұрын

    @@Indently The class *list* in Python implements what's called arrays in almost every other language and data structures books (more precisely dynamic arrays, C++ call them vectors but that's an horrible choice all of its own). If you're teaching programming with Python, it's a constant pain to every so often catch yourself referring to lists when you meant arrays just because the chosen language didn't use the standard name. Not really important in most other contexts (a rose by any other name…).

  • @callbettersaul

    @callbettersaul

    Жыл бұрын

    @@chaddaifouche536 Your point being?

  • @chaddaifouche536

    @chaddaifouche536

    Жыл бұрын

    @@callbettersaul I'm just explaining what maxim was referring to. All in all this video is exploring the list class in Python so I don't think this distinction is very important here but some people more accustomed to other languages do find the name irritating.

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    Жыл бұрын

    Python has an entirely separate “array” module. And then there are NumPy arrays.

  • @vladimirtsyapka3277
    @vladimirtsyapka3277 Жыл бұрын

    You can get rid of the lambda function in the sort method. people.sort(key=len) It works too.