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)
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
@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.
Very straight to the point video! Awesome, finally I got it lmao. I know it's simple but I guess others could not nail the explanation like you! In such hurry and simplicity I finally understood this! Thanks!
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.
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.
So I'm iterating through a list of IP addresses and a module is used to attempt to connect via SSH. Some IP addresses I know will fail and will raise a timeout error. How do I iterate to the next item in the list and continue when this happens? Also the list is created by an excel sheet.
@@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...
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.
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.
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
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
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?
@@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.
@@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 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.
Sadly, this was really great. Concise, comprehensible, your voice friendly, warm and welcoming. Dig this vid a lot, might explore more.
why sadly bro
@@harmly2682they asked for tips at the end of the video, there are no extra tips he could add
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)
Very true, I often use lambdas in these situations to show that people can really implement their own custom functionality :)
Love your channel! Always interesting material, presented clearly and with good examples.
Really love your content. Can you please do a video on time and space complexity with python examples?
I'll look into it!
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
You saved me for my practical exam. Thank U 🫀🫀
So handy list aspects. Many thanks.
@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.
Correct. Python list sorting methods are stable, meaning that equal keys preserve the original order. The video was incorrect on that point.
7:11 where i left of coding thx for the video its Awesome sauce
Very straight to the point video! Awesome, finally I got it lmao. I know it's simple but I guess others could not nail the explanation like you! In such hurry and simplicity I finally understood this! Thanks!
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.
A year late, but yes, just improves readability and LSP suggestions
Very useful ❤
what's the difference between list.clear() and list = []
Clear is better memory wise
@@massy-3961 thanks
i think
list.clear() means that list = null; // work garbage collector, clean memory
list = [] means that list = new list(); // new pointer in memory
Actually “l.clear()” would be more equivalent to “l[:] = []”
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.
Very nice class I am from india
thank u for tutorial. greet from Indonesia 👍
Great video!
I am really thankful
sir that was amazing teaching thank u
Basiji?
awesome!
love ur vid. thanks
❤❤❤❤❤❤ Thanks a lot!
Which editor are you using? It looks very clean.
PyCharm
Wait why is the filename still 'pydec' today is January which means it needs to be 'pyjan'
It's going to get really confusing for people following the file name dates! Because that's when I created those projects ;)
@@Indently oh alright
Pyjan2025
Very nice superb❤❤❤
So I'm iterating through a list of IP addresses and a module is used to attempt to connect via SSH. Some IP addresses I know will fail and will raise a timeout error. How do I iterate to the next item in the list and continue when this happens? Also the list is created by an excel sheet.
Exception handling
Wrap the code in a try block and the error in except block
wow....thank you so much....
can you explain that you're assigning variable is different way
nice list!
You super man❤
Just wondering what sort of use cases there are for list.clear()?
(I've never used it, but that doesn't mean very much!!)
its just a little more memory efficient than list = [ ]
@@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...
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.
@@TheMongole24 cool, thanks for the explanation!
Is extend() like concatenation
Great 👍
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.
I recommend breaking that problem down into smaller problems. It's very unlikely I will make a video so specific to that problem.
please hepl :
print("Sartirovka")
print()
s=int(input())
a=[]
for i in range (s):
a.append()
a.sort()
print(a)
what' wrong?
help*
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.
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
exellent
Helicopter Helicopter 😂
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
Great.
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?
Elon, Trump, and Luigi.
Wondering when we'll be introduced to Mario IRL. 💀
HI, why did you put "people: list[str]" wouldn't "people = [ "Mario", "Elon", "Trump" ]" do the job?
Because we are adults now, and Python offers beautiful tools to simulate static type checking :)
Helicopeeer
Mostly you ise dunder in class
you lost me at about the 10th elons
Watching this after the election. Can we just remove Elon and Trump altogether 😩
Indently videos are actually accurate prediction political videos????
TypeError: 'type' object is not subscriptable
I think you meant to paste that on Google search.
@@Indently No. This does not work on all compilers.
Please explain what you mean.
@@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.
@@lemmenmin7676 Python doesn't have any compilers. Python is interpreted language.
Array, not list.
Please be more specific about what you're trying to explain.
@@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…).
@@chaddaifouche536 Your point being?
@@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.
Python has an entirely separate “array” module. And then there are NumPy arrays.
You can get rid of the lambda function in the sort method.
people.sort(key=len)
It works too.