Python Generators

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  • เผยแพร่เมื่อ 22 ธ.ค. 2024

ความคิดเห็น • 224

  • @biffenb7534
    @biffenb7534 2 ปีที่แล้ว +405

    I love the relatively monotone presentation, which helps clarity, with only a few incredibly well placed jokes sprinkled here and there. Keep it up!

    • @Holphana
      @Holphana 2 ปีที่แล้ว +9

      Monotone? I hear many inflections.
      I would be offended at the implication towards my accent if I were in the TH-camrs shoes. 😢

    • @biffenb7534
      @biffenb7534 2 ปีที่แล้ว +22

      @@Holphana You’re right, I just didn’t choose my words carefully enough. What I mean is that the presentation is that of a factual text, instead of creating unnecessary clutter through adding emotion or emphasis like so many other TH-camrs do.

    • @Ptolemarch
      @Ptolemarch 2 ปีที่แล้ว +1

      Indeed, these are vastly the best videos on coding I've found.

    • @RoamingAdhocrat
      @RoamingAdhocrat 2 ปีที่แล้ว

      What's really missing is a title card with a photo of M with chin in hands looking puzzle, or head-in-hands despairing at some topic that was exhorted in many keynote talks - TDD, say

    • @NewLondonMarshall
      @NewLondonMarshall 6 หลายเดือนก่อน

      What a wholesome reply :) ​@@biffenb7534

  • @SwissTHX11384EB
    @SwissTHX11384EB 2 ปีที่แล้ว +141

    Mate, I have years of Python experience, yet everytime you release a video I am floored by some of the stuff you showcase and I feel like I'm learning about the language for the first time. Stellar job, as always, and your presentation style is excellent for the job.

    • @luiz8755
      @luiz8755 ปีที่แล้ว

      same
      it's a little bit overwhelming lol

  • @l4luchi123
    @l4luchi123 2 ปีที่แล้ว +151

    No matter how experienced you are, in your videos there is always a new small detail you didn't know about. Love it!

    • @georgplaz
      @georgplaz 2 ปีที่แล้ว +6

      yes! I thought "oh. I know everything about yielding.."
      and then.. bi-directional?! 🤯

  • @adsfwef1331
    @adsfwef1331 2 ปีที่แล้ว +47

    Dude, you are a genius. I wonder why your vids aren't getting more views than those other millions of python hacks out there. Keep up the good work.

  • @Fikerus2
    @Fikerus2 2 ปีที่แล้ว +23

    I write things like "sum(x for x in range(10))" very often and I didn't know that was generator comprehension! I was thinking it was the same as writing "sum([x for x in range(10)])" (with brackets). Thanks a lot for your content!

    • @yazanalhariri3700
      @yazanalhariri3700 2 ปีที่แล้ว +1

      Me too!

    • @enkryp
      @enkryp 2 ปีที่แล้ว +4

      Why using a comprehension at all? Can't we just do sum(range(10)) ?

    • @MrRyanroberson1
      @MrRyanroberson1 2 ปีที่แล้ว +1

      @@enkryp i was just about to mention! yeah range is directly iterable

    • @lawrencedoliveiro9104
      @lawrencedoliveiro9104 2 ปีที่แล้ว +1

      That’s the difference between an “iterator” and an “iterable”. An “iterable” has an ‗‗iter‗‗ method, which returns an iterator when it is called. The iterator is what returns the elements of the sequence, until it is exhausted and can’t be called again.
      Because range() is an iterable, you can reuse a single range object to return any number of iterators over that range.

    • @Geza_Molnar_
      @Geza_Molnar_ 2 ปีที่แล้ว

      @@lawrencedoliveiro9104 Yeah, your explanation helps me a lot.

  • @dhravya
    @dhravya 2 ปีที่แล้ว +52

    Always struggled with generators. Thanks for the amazing explanation!

  • @GlutesEnjoyer
    @GlutesEnjoyer 2 ปีที่แล้ว +3

    “Even if a file is gigabytes large you’ll only need enough memory to handle a single line” great point!

  • @Gamecrazy721
    @Gamecrazy721 2 ปีที่แล้ว +23

    Very insightful video! One other place I've seen generators used frequently is for API pagination. If, for instance, if you want to get all 100 records from an API, and the API limits your query to 10 records per call, you may not want to wait for all 10 calls. Instead you create a generator that calls the API only when you've completed working with the first page and are ready to move onto the second, etc.

    • @lawrencedoliveiro9104
      @lawrencedoliveiro9104 2 ปีที่แล้ว +4

      Database queries is a good example. A very common sequence is
      * Create a cursor object
      * Execute a query on the cursor
      * Iterate over the results returned from the cursor
      * Close the cursor.
      You can wrap all these steps up in a single generator function, which takes the query and lets you iterate over the results in a single step.

  • @LettuceAttack176
    @LettuceAttack176 2 ปีที่แล้ว +14

    I swear every time I start watching a video on this channel I think “ah here is another thing I already know in python I probably won’t learn anything new this topic is pretty straight forward” and I end the video feeling like I never knew anything about it to begin with 😂😂 keep up the great work

  • @ssholum
    @ssholum 2 ปีที่แล้ว +92

    Async (vs threading vs "other kinda-multitasking methods") video would be greatly appreciated. It's not the most useful stuff for your average script or simple program, so I rarely see good explanations of it for any language.

  • @ahmadhesham1389
    @ahmadhesham1389 2 ปีที่แล้ว +4

    This is why I like your channel: Even when I think I know a topic well, I still expect to find something new in your videos, and I always do. Keep it up!

  • @mabml
    @mabml 2 ปีที่แล้ว +34

    Your async explanation would be much appreciated! :)

  • @vincentperrollaz5261
    @vincentperrollaz5261 2 ปีที่แล้ว +16

    Outstanding video as always.
    itertools might have deserved a mention since it is very useful with generators.
    The jump from iterator to coroutine was a bit steep and I would personally love an async video

  • @rituchandra6325
    @rituchandra6325 2 ปีที่แล้ว +4

    "Where the only limit, is your imagination... and your download speed" - LOL I lost it here

  • @lex_darlog_fun
    @lex_darlog_fun 2 ปีที่แล้ว +5

    Just as I was about to suggest a video on async, James announced it himself. 👍🏻
    Can't wait to see this convoluted topic explained in mCoding simple comprehensible manner.

  • @MessLeadingProgramming
    @MessLeadingProgramming 2 ปีที่แล้ว +14

    Great video. It was eye opening for me when I learnt about generator comprehension. I realised that I was doing something very inefficient passing list comprehensions to sum and other functions.
    Also worker example is amazing. Never used it this way.

  • @69k_gold
    @69k_gold ปีที่แล้ว +2

    Thank you! By learning this I was able to create a toy version of the async coroutines, helped me a lot to grasp the concept of event loops

  • @TylerLarson
    @TylerLarson 2 ปีที่แล้ว +8

    Yep, definitely interested in an async video. Especially interested in learning the "python native" async features and components so as to detangle it from all the third-party contributed stuff.

  • @wojasek1223
    @wojasek1223 8 หลายเดือนก่อน

    Thank you so much for this video, and all of others. I've started reading Fluent Python a couple months ago, but that was quite hard for me to go through it. And you on your channel describe those hard for me things and I finally get them somehow. Thought I was dumb, but all i needed was to find a great lecturer. Thank you so much!

  • @dmdeemer
    @dmdeemer 2 ปีที่แล้ว +2

    Watched this video because I'm like, "I know what generators are, but I bet I'll learn something new about them." Found out that yield is an expression. Mind blown. Not disappointed.
    Please make the async video.

  • @technowey
    @technowey ปีที่แล้ว +1

    Thank you for another great video.
    I’ve been using generators for years, and still didn’t know some of this.

  • @pa1nk1ller14
    @pa1nk1ller14 2 ปีที่แล้ว +1

    Your videos are going into great depth mate! Im awaiting for that async vid of yours

  • @jewpcabra666
    @jewpcabra666 2 ปีที่แล้ว +2

    always love the videos - would love an async video! Always learn a little tidbit from these

  • @murphygreen8484
    @murphygreen8484 2 ปีที่แล้ว +1

    Made me realize how much I still need to learn. Great video!

  • @krimsonsun10
    @krimsonsun10 2 ปีที่แล้ว

    ALL hail @mcoding High Priest of the Python temple!! Your explanations are succinct, and the usage examples help me so much to grasp the concepts. Thank you.

  • @vidlb
    @vidlb 2 ปีที่แล้ว +2

    Thank you ! And yes for the async video

  • @ashishjain518
    @ashishjain518 2 ปีที่แล้ว

    I probably only got 20% of this video. But it was enough for me to fiddle around and learn more about generators' daily use cases to improve my performance...
    Great video, Mcoding 😄

  • @spaghettiking653
    @spaghettiking653 2 ปีที่แล้ว +2

    4:44 what is this _make method you call? I wasn't expecting this code to run, but it still did, even though it doesn't appear you defined the method? Is this something generated by dataclass?

    • @NostraDavid2
      @NostraDavid2 2 ปีที่แล้ว +2

      Note that MyDataPoint class is the type NamedTuple. I googled for "_make NamedTuple Python" and got some info on the function. Turns out that _make is part of the NamedTuple class.

    • @NostraDavid2
      @NostraDavid2 2 ปีที่แล้ว +1

      Also note that's its a NamedTuple and not a data class. This just means that you have different functions that you can use. So no comparison, like you do with data classes. You CAN do it, but you'll have to implement it yourself.

    • @spaghettiking653
      @spaghettiking653 2 ปีที่แล้ว +1

      @@NostraDavid2 I see, thanks for pointing it out. So, I'm not sure why I thought it was a dataclass, but I guess I just saw the type annotations and didn't read the top part. That makes a lott more sense, big thanks :)

  • @Cookie-mv2hg
    @Cookie-mv2hg 2 ปีที่แล้ว +2

    Every coding courses of yours it like math classes where you start at 1+1 and a simple zone out and suddenly you're on advanced mathematics.

  • @CrYpt001
    @CrYpt001 2 ปีที่แล้ว +1

    Finally something about generators. Never quite got them

  • @LastTigerEyes
    @LastTigerEyes 2 ปีที่แล้ว +2

    I really appreciate your videos. I always learn something new, even when I don't think I will. TIL parenthesis make generator comprehension. :)

  • @blacky7801
    @blacky7801 2 ปีที่แล้ว +2

    You can pass things into a generator? Wow, incredible video!

  • @mistervallus185
    @mistervallus185 2 ปีที่แล้ว

    literally just had to learn about generators 2 days ago for a proj. the video timing is immaculate

  • @FlorianLinscheid
    @FlorianLinscheid 2 ปีที่แล้ว +1

    Didn't know about generator chaining, that sounded very useful! Thanks

  • @DebashishGhoshOfficial
    @DebashishGhoshOfficial 2 ปีที่แล้ว

    "Thank you, next" was a nice touch.

  • @modest_supreme
    @modest_supreme 2 ปีที่แล้ว

    Thank you for this! Excellent deep dives. Your videos are a great source for understanding the why/how behind functionality.

  • @Jakub1989YTb
    @Jakub1989YTb 9 หลายเดือนก่อน

    9:40 - is there a nicer way to chain the generators like this? To not repeat the "nums" etc?

  • @yxh
    @yxh ปีที่แล้ว +1

    I would def like a video going deeper into "yield from" generator uses, with examples

  • @PikalaxALT
    @PikalaxALT 2 ปีที่แล้ว +3

    4:25 - Pycharm thinks your text file is a requirement.txt.

  • @lawrencedoliveiro9104
    @lawrencedoliveiro9104 2 ปีที่แล้ว

    14:44 Yield-from does nothing that cannot be done by the outer generator doing its own send calls on the inner generator.

    • @mCoding
      @mCoding  2 ปีที่แล้ว

      True, but take a look at what yield from is defined as in the spec. Due to all the edge cases, it would be an absolute nightmare to implement it yourself every time you wanted to use it. peps.python.org/pep-0380/#formal-semantics

  • @MoritzWallis
    @MoritzWallis 2 ปีที่แล้ว +2

    Super informative video, thank you, very interesting

  • @andrewstribling4385
    @andrewstribling4385 10 หลายเดือนก่อน

    Nice work! I cannot wait to start using these generator techniques!

  • @trag1czny
    @trag1czny 2 ปีที่แล้ว +7

    craving for the async vid 🤤

  • @ren200758
    @ren200758 2 ปีที่แล้ว

    didn't know about the generator pipeline and was blown away by it. big hype for the async video!

  • @PetrSUsername
    @PetrSUsername 2 ปีที่แล้ว +1

    I watched quite few videos about async but I would still like your take as well. It is one of the more complicated/complex? parts of the language to grasp.

  • @redon638
    @redon638 2 ปีที่แล้ว

    Thanks! I always learn something new and really impressive watching your videos. Wish you twice as much subs

  • @dixonstroi
    @dixonstroi ปีที่แล้ว

    I think this will really help me with lazy execution via generators. This would have really helped if . Also, 'yield from' was hard for me to get from just the docs, so thanks for summing that up tidily.

  • @aditya95sriram
    @aditya95sriram 2 ปีที่แล้ว

    That generator pipeline was eye-opening! I've worked with generators plenty, but still this pipeline idea escaped me

  • @yxh
    @yxh ปีที่แล้ว

    So at 9:31, the `nums` on line 15 is really a 5th-level nested generator? And whenever sum() wants the next value in the top-level generator, the inner nested generators wind all the way down to the lowest level to read the file and parse it one row at a time?

    • @mCoding
      @mCoding  ปีที่แล้ว

      Yep, that's right!

  • @AByteofCode
    @AByteofCode 2 ปีที่แล้ว +1

    Very nice CTA at the end, hadn't noticed it before, clever :)
    Otherwise great video and can't wait to know how async uses generators, I've been curious about that ever since you mentioned it a while ago.

  • @thyllmuller4524
    @thyllmuller4524 2 ปีที่แล้ว

    9:42 I tried that exact code and I got the "sum is inf" - any idea what might be happening? I triple checked the code, it is identical aside from the function name being different.

  • @adamstrejcovsky8257
    @adamstrejcovsky8257 2 ปีที่แล้ว +1

    when I feel on top of the world with my python knowledge, I go here to restore humility :D

  • @BR-lx7py
    @BR-lx7py 2 ปีที่แล้ว

    @9:08 It's crazy that you can even have the same name for the generator comprehensions, so all of them called "nums".

  • @hotmole7621
    @hotmole7621 2 ปีที่แล้ว +1

    when i started python, i was so proud of my prime number generator function

  • @BR-lx7py
    @BR-lx7py 2 ปีที่แล้ว

    This video is definitely eye-opening. I thought that generators were just regular functions that you could re-enter, but I never comprehended how python calls them totally differently. Adding something like "if False: yield" to a regular function totally changes how it is called, despite those 2 lines of code being a noop.

  • @StephenBuergler
    @StephenBuergler ปีที่แล้ว

    Do you think it would be a good idea for the else clause in the for/in/else loop to be the place where the generator's returned value is made available?

  • @martinc.7424
    @martinc.7424 2 ปีที่แล้ว

    I was just told that list comprehension where faster than for loops... now it makes sense.

  • @darske1
    @darske1 2 ปีที่แล้ว

    Plot twist: The 1 Gb file you're trying to read, has only 1 line xD
    Awesome video. The send method confuses me a lot every time I see it, I don't know why lol

  • @vt2788
    @vt2788 2 ปีที่แล้ว

    Really advanced high value stuff! Thanks!

  • @klaasvaak2575
    @klaasvaak2575 2 ปีที่แล้ว

    not just imagination or/and downloadspeed but also your pride deciding what you appropriate from the interwebs or what you painstakingly program yourself in most likely a less efficient methode.

  • @taylorbreutzmann6034
    @taylorbreutzmann6034 2 ปีที่แล้ว +2

    It’s crazy, being able to tell how intelligent another human is just behind a screen/video.

  • @knut-olaihelgesen3608
    @knut-olaihelgesen3608 2 ปีที่แล้ว +1

    Thank you so much. This was a very confusing topic.

  • @MichalPlichta
    @MichalPlichta 2 ปีที่แล้ว

    Wow I thought I know almost everything about generators, but i was wrong! Well done!

    • @mCoding
      @mCoding  2 ปีที่แล้ว

      There's always more to learn!

    • @Plann
      @Plann 2 ปีที่แล้ว

      Same.

  • @anibaldk
    @anibaldk 2 ปีที่แล้ว +1

    You cannot see this (hopefully) but I had to give a standing ovation to this one.

    • @mCoding
      @mCoding  2 ปีที่แล้ว +2

      I saw it!

    • @anibaldk
      @anibaldk 2 ปีที่แล้ว

      @@mCoding 😱😱😱😱😱😱😱

  • @ErikS-
    @ErikS- 2 ปีที่แล้ว

    4:26 - Maybe the parser may think this may be a line-number?

  • @endoflevelboss
    @endoflevelboss 2 ปีที่แล้ว

    Looking forward to the async video 👍🥳

  • @bigmacbeta
    @bigmacbeta 3 หลายเดือนก่อน

    Thank you. Amazing explanation.

  • @chinmayk8004
    @chinmayk8004 ปีที่แล้ว

    3:12 and to "reiterate"... unforced?

  • @arthurfelipe544
    @arthurfelipe544 ปีที่แล้ว

    what is the use of the line x: float? i tried to search the use of the : in that line but didn't find anything

  • @BRICKSINSILK
    @BRICKSINSILK หลายเดือนก่อน +1

    I have imagination...I just lack drive, passion, purpose, stamina, motivation, IQ, and I essentially am unable understand social ques...

  • @mayank8387
    @mayank8387 2 ปีที่แล้ว

    Dude you're amazing! Thanks for sharing.

  • @greasedweasel8087
    @greasedweasel8087 2 ปีที่แล้ว +1

    Can you do a video on making __iter__ a generator vs defining a __next__? I’ve seen both in the wild, you seem preferential to the __iter__ generator, and I’ve googled to no avail. I’m mostly interested in which one is more pythonic, but I’d also like to know what you think the use cases for each are. Great videos!

  • @miQize
    @miQize ปีที่แล้ว

    What's the difference between yield from and just a yield followed by a send to the wrapped generator?

    • @mCoding
      @mCoding  ปีที่แล้ว

      See peps.python.org/pep-0380/#formal-semantics for the formal semantics. As you can see, there are a huge number of edge cases and exceptions that it takes into account.

  • @macedmondson782
    @macedmondson782 2 ปีที่แล้ว

    I'm really liking your videos! I would love to see an async video from you!

  • @AIRLZ6
    @AIRLZ6 9 หลายเดือนก่อน +1

    damn i need to watch this video over and over again :D. Love it!

  • @reef2005
    @reef2005 8 หลายเดือนก่อน

    It would help if you say something about the arg NamedTuple in the MyDataPoint class and also the '_make' method that does not exist.

  • @con-f-use
    @con-f-use 2 ปีที่แล้ว

    > "Do you think, they would really introduce a whole new set of keywords just to have a shortened for-loop?"
    Yes. The answer is "Yes, I can see the Python devs do that."

  • @jullien191
    @jullien191 2 ปีที่แล้ว

    Muy buen video. Gracias amigo

  • @ObsessiveClarity
    @ObsessiveClarity ปีที่แล้ว

    I find myself routinely wanting to iterate backwards through a list with access to the correct array indices:
    for i,x in reversed(enumerate(myList)): # enumerate(myList) is not reversible so this sadly doesn't work.
    ...
    for i,x in reversed(list(enumerate(myList))): #works but is moving memory around for no good reason.
    ...
    for i,x in zip(range(len(myList)-1, -1, -1), reversed(myList)): # works but is less readable / higher cognitive load
    ...
    for i,x in zip(reversed(range(len(myList))), reversed(myList)): # OK but makes me very slightly sad
    ...
    Anyone have any good tips for this?

  • @tytywuu
    @tytywuu 2 ปีที่แล้ว

    I can't wait for the async video!

  • @Blubberland
    @Blubberland 2 ปีที่แล้ว

    Thumbs up.
    4:27 This might be a rather be a problem of spell-checking settings than on syntax.

  • @alexsere3061
    @alexsere3061 11 หลายเดือนก่อน

    "Did you really think they would add a new keyword just to abbreviate a for loop?"
    This is python so yes, yes I did

  • @gormster
    @gormster 2 ปีที่แล้ว +1

    No, I don’t want a video on asyncio. I want a whole goddamn *series.*

    • @mCoding
      @mCoding  2 ปีที่แล้ว +1

      Take note of how I'm methodically making videos on all the prerequisites for a deep async discussion 🙃

    • @khalilhadji6489
      @khalilhadji6489 2 ปีที่แล้ว

      @@mCoding can't wait, i am facing some issue in one of my projects and understanding how asyncio works inside out would be very helpfull

  • @StrangeArrow
    @StrangeArrow 2 ปีที่แล้ว

    Super Content. Thanks for sharing with us 🥰🥰

  • @morrispearl9981
    @morrispearl9981 2 ปีที่แล้ว

    I am a fan of generators. I use "yield from" when the function that generates the next thing happens to be recursive. For example, I have a generator that takes a list of N things, and yields each permutation of those N things, and the underlying algorithm is recursive.

  • @briban65
    @briban65 8 หลายเดือนก่อน

    what is NamedTuple in the file processing one??

    • @mCoding
      @mCoding  8 หลายเดือนก่อน

      I talk about it in this video! th-cam.com/video/vCLetdhswMg/w-d-xo.html

  • @ciCCapROSTi
    @ciCCapROSTi 2 ปีที่แล้ว

    Good stuff, I didn't know most of the advanced stuff here.

  • @RoamingAdhocrat
    @RoamingAdhocrat 2 ปีที่แล้ว

    What typeface is your editor using? I covet those flat-top 3s

    • @mCoding
      @mCoding  2 ปีที่แล้ว

      That's the default font in PyCharm, JetBrains Mono.

  • @mattlau04
    @mattlau04 2 ปีที่แล้ว

    Great video as always! And would love to see a video on async

  • @mytalala
    @mytalala 2 ปีที่แล้ว

    looking forward for async video, great job

  • @dmitrylitovchenko2365
    @dmitrylitovchenko2365 2 ปีที่แล้ว +1

    In collatz generator checking for n == 1 should be at the top otherwise it behaves funny with input of 1: [4, 2, 1] :)

    • @mCoding
      @mCoding  2 ปีที่แล้ว

      Good catch! Yes you are absolutely right.

  • @fyellin
    @fyellin 2 ปีที่แล้ว +1

    Just out of curiosity. Python allows min, max, sum, etc on both sequences and iterators. Any idea why len() can’t be called on a generator. I’ve been trying to decide what was going through the heads of the Python developers. You really shouldn’t have to write sum(1 for _ in generator).

    • @ccgarciab
      @ccgarciab 2 ปีที่แล้ว +1

      Probably because generators aren't guaranteed to end and having a common function as len() being potentially non terminating on a common type of object might have been considered bad design

    • @fyellin
      @fyellin 2 ปีที่แล้ว +2

      @@ccgarciab But is len() really that different than min() or max()?

    • @lawrencedoliveiro9104
      @lawrencedoliveiro9104 2 ปีที่แล้ว

      len() requires you to evaluate the entire sequence.
      Addendum: you should be able to define a ‗‗len‗‗ method for your iterator object, if you want. Then len() should work on it.

    • @fyellin
      @fyellin 2 ปีที่แล้ว +1

      @@lawrencedoliveiro9104 Again, how is this different than min(j, max(), sum()? Unless you’ve got infinities, all require knowing the entire sequence.

    • @lawrencedoliveiro9104
      @lawrencedoliveiro9104 2 ปีที่แล้ว

      @@fyellin Probably because of the ‗‗len‗‗ issue.

  • @AngryArmadillo
    @AngryArmadillo 2 ปีที่แล้ว

    Looking forward to the asyncio video!

  • @stacymaimoon4189
    @stacymaimoon4189 ปีที่แล้ว

    I was impressed.
    Just one observation: if you try to debug an example (I did it with example_composable()) and you want to see what happens with the data in the generator after each step,
    transforming the generator to a list (I am using PyCharm), you will be surprised to discover that the list (and the generator itself)
    is empty after the very first conversion (and all subsequent generator steps as well).
    The example runs in execution mode, but delivers wrong results if you debug. I have not found a suitable means to overcome this limitation, so far. Do you have any presentable idea?

  • @luiztosk
    @luiztosk 4 หลายเดือนก่อน

    this is awesome, thanks

  • @Thr0nSK
    @Thr0nSK 2 ปีที่แล้ว +1

    Man you killed it with the Ariana Grande 😂😂

  • @lohphat
    @lohphat 2 ปีที่แล้ว

    What's confusing here is that in the first example you have to use next() to get the next yield value but in the loop the next() is inferred. To me, that just destroys readability as the syntax has changed for no good reason.

  • @HonsHon
    @HonsHon 11 หลายเดือนก่อน

    Helped me refactor some code and provide some memory savings! Thank you!

  • @samuelthecamel
    @samuelthecamel 2 ปีที่แล้ว

    Start of video: Ah yes, this is a cool useful Python feature that I didn't know about!
    End of video: What is even going on

    • @mCoding
      @mCoding  2 ปีที่แล้ว +1

      Haha welcome to my channel! A lot of my videos are guilty of this. I try to make the beginning accessible to everyone but then by the end I'm covering technical details and esoteric use cases that experts get held up on.

    • @samuelthecamel
      @samuelthecamel 2 ปีที่แล้ว

      @@mCoding no problem man, it's nice that anyone at any skill level can learn something from these videos

  • @MaxBloomfield
    @MaxBloomfield 2 ปีที่แล้ว +1

    I enjoy your dives under the hood of stuff I routinely use and thought I knew well.
    It might be worth pointing out that generator comprehensions can have closures like functions can:
    def multiples(value):
    return (value * x for x in [1, 2, 3])
    fives = multiples(5)
    for number in fives: # 5 is now embedded in fives
    print(number)
    TH-cam comments need code formatting markup. At least on this channel.