Seeing usages of the zip, enumerate and map functions in other people's code has definitely shown me their utility and I've been applying them myself ever since.
@@Joeadamu all my change does is use enumeration values from 1 to N instead of 0 to N-1. You also remove the " + 1" from the print call. Everything else remains unchanged. In this case it is a small improvement. In more complicated cases it can make the code noticeable clearer and reduce the chances of off by one errors.
Thank you a ton! You're simply The Best. You don't hide anything - it's just the way it is and works. I believe the world still stands a chance to be a better one when I see people sharing like you do.
Any chance you could make a video on how to properly study and retain programming? I find myself repeat myself with the same stuff because I can't memorize what I'm learning. It would be amazing to see how you studied and practised programming.
Understanding how the code is structured is more important than memorizing functions. Being skilled in web searching and utilizing forums such as stack overflow are probably more useful than memorizing. Every coder searches for definitions or asks forums when they get stuck.
Start projects and be relatively ambitious - more than you know how do to do but not massive projects. Think 'how do you do basic ____ work?' (Gui, classes, functions, structuring a app, docker, etc...) If you apply the knowledge you are much more likely to remeber. Good luck!
For the sum function, there is a cool thing you can do with the start argument. You can put any type that support the + operator. So for example if you want to flatten a list of list you can pass it with start=[] and it will get the job done
Interesting. I tried to use it to append strings and it doesn't work. Since the error message explicitly says to use join, it must be explicitly checking for.
@@johnbennett1465 Ah that's weird I tried it with a list and it works so I assumed that it work with any object that support + operator. Guess I'm wrong
After some research I found out that the sum function specificaly "ban" string for optimization reason and encourage you to use join instead. I don't know if other types are checked
So is Claude AI. I still prefer the human element though, and always will, but when you want a quick discrete answer, AIs are great at summarizing results from many websites. I actually found Leo (Brave's AI built into their search engine) to be excellent at this.
i always swap out map/filter for list/dict comprehensions just because of readability. I feel like the only time time ill ever use them is if im using a terribly large dataset and im facing memory issues with list comprehensions. Even so, im in devops so i rarely face that problem
What is the advantage of map and filter functions, the same can be achieved with single line list_comprehension aswell. Curious to know what are the added advantages of using these map & filter functions. My approach for the items discussed in the video are : strings = ["my", "world", "apple", "pear"] l_comp = [len(i) for i in strings] print(l_comp) l_append = [i + "s" for i in strings] print(l_append) l_filterd = [i for i in strings if len(i) >4] print(l_filterd)
Dear Team, Thank you for your awesome content. I would like to request that you speak a little slower, if possible. For those of us whose native language is not English, your speaking speed can sometimes be a bit fast and unclear, causing us to miss some parts of the content.
Re SUM why would you do this and type 2 lines of code.... numbers = (1, 4, 5, 23, 2) print(sum(numbers)) when you can do this and have 1 line of code print (1 + 4 + 5 + 23 + 2) and get the same result ?
@@beyondthelimits788 I Understand. And.. I based my comment on his example. clearly we can take any basic thing in programming and say, but what if this and that and then we need to do this and call this and whatever. and then we have 15 lines I'm just asking why he didn't put it on 1 line
Maybe they're made for people already familiar with these things but don't know exactly how they work. This one is clearly not for absolute beginners who don't know what a function is. There are many more tutorials that assume you're an absolute beginner. Example is Harvard's CS50 Python tutorial...
This one is a good refresher of all the commonly used functions in python. I recommend watching this video after having atleast 6 months of experience in python. If you have written any python code for a project or LeetCode, then you will definitely have encountered and used these functions.
Why don’t you give some examples about things that he mentioned that he assumes you should already know? everything in here seemed fairly low level. Maybe if you provided some examples that I could tell you how you’re wrong
Is your freecodecamp machine learning with python course still useful for beginners? if you have a better course, could you tell me? I'm trying to get into an apprenticeship of software engineering and I'm not sure if it's the right decision to spend time on a 4 years old course. Thank you.
Plz i need your need in one of ur videos to build IA Agent advanced python using RAG : I did pip install llama-index-experimental so many times and also the upgrade version. I did ' from llama_index.experimental.query_engine import PandasQueryEngine ' and it says ' no module name llama_index.experimental '. Weird plz anyone?
Never liked the "with" thing for files, even the Python professor in college said to not use it, same for list comprehension. Why make something easy one step more complicated for the mind to translate? If its cleaner on my mind , I don't care how it looks on an editor
It has nothing to do with “looking good” it’s about utilizing the context manager for safety when operating with a file. It has a real utility in that it catches and resolves and file reading/writing errors automatically for you and ensures the file is closed correctly regardless of what you do. That’s why you use it.
I have had issues copying files from an FTP server from not using with. Using with prevented me from having anymore blank files. I probably wasn't closing them properly but never need to worry about that using with
Dear Tim: You're even better at teaching than you are in Python. How you organized these simple functions in one video answered a lot of questions for me, particularly because of the order in which you explained them. You could be successful in teaching any subject, Tim. Perhaps you should think about that before you fully invest your young life into computer programming. ❤
so why bother with "longer_than_4" function when you could have done: filtered=[lstr_element for str_element in ["my", "world", "apple","pear"] if len(str_element) > 4]
Sorry, I should’ve been more clear. The part where you’re talking the open function and “a” vs “w”. To replace the contents of an existing file is to overwrite it. I do appreciate the video. I’m a somewhat experienced python programmer, but I was not aware of the help and enumerate functions.
No thanks... Working on a computer for a living seems like it is going to become completely obsolete in less than 5 years. Why spend time learning useless things... Does anyone use cursive writing any more? It used to be the optimised form of communication.. But I would argue that every second I was taught how to cursive write was a waste of time and energy that could have been spent on more useful fundamental skills.. Now learning AGI Command prompts.. That seems to be where the future is headed.. My first computer was a MS Dos. Using functions like this used to be how it was done. But certainly not for much longer..
As a coder who has used several AI code tools I have absolutely no fear for my job given the quality of the code they produce. Nor are they likely to get notably better in the future as throwing more training data at them leads to diminishing returns. Even if you can get it to produce the right code, you need to understand what it has produced to know it's right. AI has potential to be a useful aid but it's massively over hyped right now so all the startups can get that sweet VC cash.
I have a free introduction course on how to land a developer job in 2024 here: techwithtim.net/dev
Print also takes a file argument to write to a file.
Nice simple explanations that start you thinking of how you can use these functions. Exactly how you want to feel when learning a language.
Seeing usages of the zip, enumerate and map functions in other people's code has definitely shown me their utility and I've been applying them myself ever since.
These "basic" videos are very nice.
Thanks for that one.
For the first time ever i understood how lambda functions work. Thankyou so much Tim!!
For this problem you should refer a structured course...
@@kuldeep7063 should they? seems like this video was good enough for them
Excellent Tim This is the first time I watched one of your vids. I just subscribed
Using enumerate(tasks, 1) makes the code even cleaner. The second parameter is the start value.
This is true then what about the full stop after the number because you don't wanna be using a comma...
@@Joeadamu all my change does is use enumeration values from 1 to N instead of 0 to N-1. You also remove the " + 1" from the print call. Everything else remains unchanged.
In this case it is a small improvement. In more complicated cases it can make the code noticeable clearer and reduce the chances of off by one errors.
@@johnbennett1465 Oh yeah... I get your point, thanks for the clarification :)
omg I can't believe I never knew about this. I use enumerate so much. Thank you.
@@fancypants6062 you're welcome.
Thx Tim, crystal clear, fast, accurate Vs. the purpose. Great job 😊
Zip takes a strict argument when it is important that the lists are the same length. Without it zip can hide bugs in your list generation.
I've always been using key argument in sorted function by trial and error. Finally I understood. Thanks Tim great video as usual!
Used some of these for a recent class, and this serves as a refresher! Great content.
Thanks a lot Tim, it was such a helpful recap for me. Keep up the high quality content.
Thanks! I never understood lambda functions. I overcomplicated it.
They're just anonymous / unnamed functions. JavaScript, C#, and many other languages have the same concept.
Thank you a ton! You're simply The Best. You don't hide anything - it's just the way it is and works. I believe the world still stands a chance to be a better one when I see people sharing like you do.
Any chance you could make a video on how to properly study and retain programming? I find myself repeat myself with the same stuff because I can't memorize what I'm learning. It would be amazing to see how you studied and practised programming.
keep practice and write lot of scripts and you will memorize it without noticing . I learned this way
Understanding how the code is structured is more important than memorizing functions. Being skilled in web searching and utilizing forums such as stack overflow are probably more useful than memorizing. Every coder searches for definitions or asks forums when they get stuck.
Start projects and be relatively ambitious - more than you know how do to do but not massive projects. Think 'how do you do basic ____ work?' (Gui, classes, functions, structuring a app, docker, etc...)
If you apply the knowledge you are much more likely to remeber. Good luck!
5:00 There is a mistake. The range function will generate a range from zero.
For the sum function, there is a cool thing you can do with the start argument. You can put any type that support the + operator. So for example if you want to flatten a list of list you can pass it with start=[] and it will get the job done
Interesting. I tried to use it to append strings and it doesn't work. Since the error message explicitly says to use join, it must be explicitly checking for.
@@johnbennett1465 Ah that's weird I tried it with a list and it works so I assumed that it work with any object that support + operator. Guess I'm wrong
After some research I found out that the sum function specificaly "ban" string for optimization reason and encourage you to use join instead. I don't know if other types are checked
@@souris_a_boule5695 thanks for the information. I should have guessed this. I am aware of the performance issues.
Hi Tim ! #10 @18:03. I didn't know that I'm able to both read to a file and write from a file ... You'll never stop learning ... 😉
Thank you for the video Tim 😃
I often use lambda functions with filter and map
Woah that append seems useful for me
Sorry too newbie, just started to learn about 2 days ago
When I was working at NASA I used these all the time when working on the Space Shuttle Challenger
Extremely helpful video! Thanks so much!
Print also as the ever helpful .format() and f strings
Tim Overflow is sooooo much easier to understand than Stack Overflow.
😂😂😂
So is Claude AI. I still prefer the human element though, and always will, but when you want a quick discrete answer, AIs are great at summarizing results from many websites. I actually found Leo (Brave's AI built into their search engine) to be excellent at this.
i always swap out map/filter for list/dict comprehensions just because of readability. I feel like the only time time ill ever use them is if im using a terribly large dataset and im facing memory issues with list comprehensions. Even so, im in devops so i rarely face that problem
Men der findes mere hensigtsmæssige og plausible metoder. Men tak for den detaljerede lektion, kolleger
thanks for the excellent intro to functions
Thanks, this was very helpful to me.
Hi, awesome video. I have a quick question, what tool do you use to record your videos?
Thank you so much ❤️
Python does many things for you that I used to do explicitly.
Tim, Thanks so much. I do love your content. It's valuable
Thank you so much
Very informative, thank you!
I guess you need to know map and filter so you can replace them with comprehensions which you should be using instead.
Helped me a lot! thanks!
Thanks for that one
u are the best teacher although u so fast
Well all of this was simple to understand
At time 04:57 the speaker says the range starts at [one]. Is that correct?
What about the "dir" function ? my favorite one :O
What is the advantage of map and filter functions, the same can be achieved with single line list_comprehension aswell. Curious to know what are the added advantages of using these map & filter functions. My approach for the items discussed in the video are :
strings = ["my", "world", "apple", "pear"]
l_comp = [len(i) for i in strings]
print(l_comp)
l_append = [i + "s" for i in strings]
print(l_append)
l_filterd = [i for i in strings if len(i) >4]
print(l_filterd)
+1
Dear Team,
Thank you for your awesome content. I would like to request that you speak a little slower, if possible. For those of us whose native language is not English, your speaking speed can sometimes be a bit fast and unclear, causing us to miss some parts of the content.
Any advices or tutorial how to create python SaaS project
Thank you !
def fastforward():
if Skip sponsor
Get advert
return advert
Any chance to have all of the functions within Jupiter notebook or code file for further usage?
Master has been pleased 😁
python is so cool
"You are as strong a programmer, as your fundamentals are strong"
I used the help function to create a python bot (not released)
In which contexts are map and filter *not* deprecated versus their comprehension counterparts?
Re SUM
why would you do this and type 2 lines of code....
numbers = (1, 4, 5, 23, 2)
print(sum(numbers))
when you can do this and have 1 line of code
print (1 + 4 + 5 + 23 + 2)
and get the same result ?
what if we want the users input, besides he's using it just as an example
@@beyondthelimits788
I Understand.
And.. I based my comment on his example.
clearly we can take any basic thing in programming and say, but what if this and that and then we need to do this and call this and whatever.
and then we have 15 lines
I'm just asking why he didn't put it on 1 line
I love that
Salute 🙌
Bravo 👏👏 Lit 🌠 Impressive 👌❤ gratitude ✨ for your satisfactory Work 💪🚀🌱
I like your videos ,
When he say "Please" on his video title begging for us to learn python
It was good but I use all the hacks that you mentioned everyday
Why are all the python tutorials explained lightning fast as if I am already a pro and know what it is talking about?
Maybe they're made for people already familiar with these things but don't know exactly how they work. This one is clearly not for absolute beginners who don't know what a function is.
There are many more tutorials that assume you're an absolute beginner. Example is Harvard's CS50 Python tutorial...
This one is a good refresher of all the commonly used functions in python. I recommend watching this video after having atleast 6 months of experience in python. If you have written any python code for a project or LeetCode, then you will definitely have encountered and used these functions.
Why don’t you give some examples about things that he mentioned that he assumes you should already know? everything in here seemed fairly low level. Maybe if you provided some examples that I could tell you how you’re wrong
probably because you think you are a superstar already when you are just a star.
@tatert0tz123 haha maybe 🤔
Your content is gold
Is your freecodecamp machine learning with python course still useful for beginners? if you have a better course, could you tell me? I'm trying to get into an apprenticeship of software engineering and I'm not sure if it's the right decision to spend time on a 4 years old course. Thank you.
Typo I entered lecture and Sick changed it to electron. Lol
Plz i need your need in one of ur videos to build IA Agent advanced python using RAG :
I did pip install llama-index-experimental so many times and also the upgrade version.
I did ' from llama_index.experimental.query_engine import PandasQueryEngine ' and it says ' no module name llama_index.experimental '.
Weird plz anyone?
Can "with" statement be used with modules for database operations as well?
I've tried that with psycopg and didn't work the same. Other packages might be different but just follow their documentation
Why do they used curly braces while sum function
Tuple = "Toople", not "Taple"!
Never liked the "with" thing for files, even the Python professor in college said to not use it, same for list comprehension. Why make something easy one step more complicated for the mind to translate? If its cleaner on my mind , I don't care how it looks on an editor
It has nothing to do with “looking good” it’s about utilizing the context manager for safety when operating with a file. It has a real utility in that it catches and resolves and file reading/writing errors automatically for you and ensures the file is closed correctly regardless of what you do. That’s why you use it.
I have had issues copying files from an FTP server from not using with. Using with prevented me from having anymore blank files.
I probably wasn't closing them properly but never need to worry about that using with
Dear Tim: You're even better at teaching than you are in Python. How you organized these simple functions in one video answered a lot of questions for me, particularly because of the order in which you explained them. You could be successful in teaching any subject, Tim. Perhaps you should think about that before you fully invest your young life into computer programming. ❤
Damn! 😂 was that a roast?
so why bother with "longer_than_4" function when you could have done:
filtered=[lstr_element for str_element in ["my", "world", "apple","pear"] if len(str_element) > 4]
Wait, are these functions or methods?
Some are types. Some are functions. Some are functions that turn around and call a method on a parameter.
Trying to think of realistic uses cases for 'map' that you can't do with comprehensions ...
I guess map just looks cleaner
python is getting semmiler like react js.... :)
❤
I can never see "rng" as anything other than random number generator....
Guys just come across these during development. No need to watch formal videos on these really ever.
I disagree, he showed there are ways around using these, if you don't know it's there, how else can you learn it's there unless someone shows you
Anyone notice how he said maletrap instead of mailtrap.
how could you notice the difference in pronunciation between 'male' and 'mail
Oops I meant he wrote male trap instead of mailtrapsince there's no difference in the pronunciation between the two.
First !
Like the video, but the word is “overwrite”, not “override”!
I’m not sure what section you’re talking about but override is a valid word for many contexts, you may still be correct but override is a word
Sorry, I should’ve been more clear. The part where you’re talking the open function and “a” vs “w”. To replace the contents of an existing file is to overwrite it.
I do appreciate the video. I’m a somewhat experienced python programmer, but I was not aware of the help and enumerate functions.
STOP SAYING ACTUALLY!
First here 👇👇
are you 23 years old?
Yes he’s close to that age. He told us already when he spoke about his path as a programmer. He looks like 34 something though lol that’s krazy
You lost me at mailplop
LoL
Waste of my time
Make your video also in Hindi Please So you have more views!
No thanks... Working on a computer for a living seems like it is going to become completely obsolete in less than 5 years. Why spend time learning useless things... Does anyone use cursive writing any more? It used to be the optimised form of communication.. But I would argue that every second I was taught how to cursive write was a waste of time and energy that could have been spent on more useful fundamental skills.. Now learning AGI Command prompts.. That seems to be where the future is headed.. My first computer was a MS Dos. Using functions like this used to be how it was done. But certainly not for much longer..
As a coder who has used several AI code tools I have absolutely no fear for my job given the quality of the code they produce. Nor are they likely to get notably better in the future as throwing more training data at them leads to diminishing returns.
Even if you can get it to produce the right code, you need to understand what it has produced to know it's right.
AI has potential to be a useful aid but it's massively over hyped right now so all the startups can get that sweet VC cash.
I've always been using key argument in sorted function by trial and error. Finally I understood. Thanks Tim great video as usual!