The comprehension change is a 10/10. Literally no change to your code required but comprehensions become twice as fast.
@LambOfDemyelination10 ай бұрын
twice?
@BrianWoodruff-Jr10 ай бұрын
Looking forward to my coworkers comprehending twice as fast!
@ianliu8810 ай бұрын
I guess this also allows comprehensions to be evaluated in pdb session? Dunno, must test
@nigh_anxiety10 ай бұрын
Haven't checked it yet, but does this also mean that a list comprehension for a class variable can now reference are pre-defined class variables? Previously it would fail as class definitions are not an enclosing scope.
@yourmomsboyfriend333710 ай бұрын
This is so cool, I can’t wait to use this in 2027 when it’s supported by all packages and about to be depreciated
@anon-fz2bo10 ай бұрын
cant wait till cpp23 is fully supported in 3023 ⚰️
@squarerootof29 ай бұрын
Can't wait for humanity to be deprecated in 2030 and AI controlled cyber-organisms taking over the world.
@danmar0079 ай бұрын
It's deprecated, but it's still funny.
@jamesflames698710 ай бұрын
Great to see Python taking some inspiration from C++ such as typing and incomprehensible syntax.
@headlikeahole654810 ай бұрын
Types in C++ affect your programs, in python they are just for IDE hints.
@jamesflames698710 ай бұрын
@@headlikeahole6548All of the complexity, none of the functionality.
@tuberroot111210 ай бұрын
@@headlikeahole6548 " in python they are just for IDE hints." Even hints would be better than the instanity of gender fluid variables and non binary booleans !!! Python is a mess on every level.
@nagoranerides315010 ай бұрын
@@jamesflames6987 But they've really internalised the lesson from C++ that you can say you're OO without having to actually enforce it, so you can still have functions floating around any old place and of course none of the flow-control is OO at all. But, you know - whitespace!
@squarerootof29 ай бұрын
@@jamesflames6987 LOL,🤣
@K0nomi10 ай бұрын
the f string change is so helpful, ive run into that one quite a few times
@user-tc1ue4gt1h10 ай бұрын
I usually use f"""{"somthing"}"""" if the double quote cannot be avoided. But usually f"{' something '}" would get the job done. Also use f"{{ {something} }}" when dealing with some command prompt requires {} as parameters.
@NoNameAtAll210 ай бұрын
you've run into using quotes inside quotes and deciding not to escape them?
@wChris_10 ай бұрын
im already excited for python pi (or just python 3.14) as it is now very very close
@Liam385110 ай бұрын
Ever since python 2 went out with python e (2.7.18), I've been thinking it would be aesthetically pleasing for the python 3 line to end with 3.14.15. Perhaps if GIL removal by default gets released as Python 4...
@obed81810 ай бұрын
@@Liam3851cant wait for it’s end really..
@matthias91610 ай бұрын
pithon
@jan-lukas10 ай бұрын
Did python 1 stop with 1.414?
@Liam385110 ай бұрын
@@jan-lukas 1.6.1. Golden ratio!
@rx97_mc10 ай бұрын
I think with `kwargs`, it's not that having the same type for each `kwarg` is a natural solution but it's more like it's consistent with the typing of `args` where it *does* make more sense to have the same type for each arg.
@SuperGrimmy10 ай бұрын
As someone who maintains a lot of packages.. 3.7 disappearing is definitely the best. Can we fast track it to 3.10? :D
@nigeltan776610 ай бұрын
is python 3.7 bad? im no expert but am curious so pls elaborate
@sid664510 ай бұрын
Losing 3.8 might be bad because of nvidia, as someone pointed out below.
@SuperGrimmy10 ай бұрын
@@nigeltan7766 It would be "bad" to use it now since that version is no longer getting any updates including security fixes. Newer versions have the new language features and much better performance anyway.
@SuperGrimmy10 ай бұрын
@@sid6645 yes, I the real world it would definitely be premature to fast track deprecation. It's just something some python package maintaners dream about because it can greatly reduce their work.
@aintaintaword66610 ай бұрын
And I'm still using 3.6 for an old custom-build tensorflow version that was specifically compiled to run on an ancient GPU
@lawrencedoliveiro910410 ай бұрын
6:30 Just a note that, as with any function, generation of the code happens only once, at compile time, but creation of the function _object_ (ref to code + environment binding) happens every time that statement is executed.
@stonemannerie10 ай бұрын
As an NVIDIA Jetson which shipped Ubuntu 20.04 (i.e. python38) and lots of proprietary NVIDIA libraries which only have python binding for 3.8, I start sweating at the thought of 3.8 being dropped next year.
@cleverclover710 ай бұрын
you're not alone
@volbla10 ай бұрын
Let's update them 🙂
@Squeemos10 ай бұрын
I know exactly what you mean. As much as I love the new features of updates to python I get really worried the closer 3.8 gets to being dropped haha. Too many things would stop working for me :(
@SuperGrimmy10 ай бұрын
You'd probably be fine for a couple more years until 2025 when ubuntu 20.04 LTS standard security maintenance also runs out. Probably Nvidia calculated it based on that. That's definitely within reason. Most consider a newly deprecated python version to have year or two more in them in enviroments like that.
@tuberroot111210 ай бұрын
@@volbla "Let's update them ". Let us .... ? That will be you and who else picking up the burden of the massive work load imposed by the lamers at Python constantly doing non compatible "upgrades" and breaking everything in sight?
@Kruglord10 ай бұрын
11:51 There's exactly one problem with `itertools.batched`, it's passed tense. All the other itertools are present tense, i.e. `groupby` rather than `groupedby`.
@negativeseven10 ай бұрын
I read it as an adjective, rather than a verb. Like functools.partial.
@simp-10 ай бұрын
never thought of that before, but It's pretty much same as in build-in python functions sorted() and reversed(). I mean we have ex. not mapped() but map(); not enumerated() but enumerate() tho I have never see anyone complain about it, even tho it's kinda not consistent
@piaIy10 ай бұрын
@@simp- Sorted and reversed are different, they suggest that the collection is not modified in place, but a copy/iterator is returned, whereas you can't really map or enumerate in place. As for batched, I think they chose that name because batch can also be interpreted as a singular noun. Kotlin also uses the name chunked for a similar method, and their naming conventions are pretty consistent.
@simp-10 ай бұрын
@@piaIy oh, okey I get it, thanks a lot
@Darmo_10 ай бұрын
The new generic type syntax is sooo welcome
@con-f-use10 ай бұрын
1:52 and it used to be that you coudln't use backslashes in f-strings. Which bit a lot of people in the backside.
@lawrencedoliveiro910410 ай бұрын
10:14 That would need a “@final” decorator on the base class method. No doubt that will be coming ...
@peco_1710 ай бұрын
Actually, @final is already in the `typing` module since python 3.8 ;)
@lawrencedoliveiro910410 ай бұрын
@@peco_17 Ha!
@Ballrock3010 ай бұрын
Hi James, if you are gathering points for a new "Nooby Python habits" video, I might have one. Not sure if I missed it in the list or it is just so stupid that you did not think about it. In most of my codes I initialized instance attributes as class attributes instead of initializing them in the __init__() method. Mainly to make the code shorter and more readable. I mean, sure... Those are shared by all instances of a class, but if they are immutable objects they work like instance attributes. I realized my very stupid nooby habit when I created mutable objects (list and dict in my case) which is then shared between all instances. I think for newcomer this behavior is not quite obvious and can lead to silent misbehavior. I thought it is worth mentioning. Thank you for your great videos. Even considering the statement above, I'd say they made me a quite good Python dev :)
@cougar201310 ай бұрын
Please let the 3.14 release be called “Pi-thon” 😂
@cardboard9529 ай бұрын
uyese
@cleverclover710 ай бұрын
8/10 video. im gonna start using itertools batched. f string stuff was annoying having to use different quotes, etc. kinda wish single-quotes in python weren't a thing.
@michaelflynn695210 ай бұрын
I just wish they did something different than double quotes, feels like wasted opportunity to make two characters do the same thing
@RokeJulianLockhart.s13ouq10 ай бұрын
@@michaelflynn6952Yeah. Almost every other scripting language has different handling for the two characters.
@nocturnomedieval10 ай бұрын
Would like to hear more about your other preferred utils. How is batched implemented over an unindexed object, does it cast to a list or uses a generator ?
@pranavbhamidipati860910 ай бұрын
Generator. Unlike batched_even which needs the iterator length, batched does not
@Tomyb1510 ай бұрын
The buffer protocol is nice. Many times I've come across functions in the standard library that say they work with anything that implements the buffer protocol, when it's C api only and only bytes and bytearray implement it. Not that useful but kinda nice.
@codegeek9810 ай бұрын
2:05 spooky, I literally just got bit by that this morning; I had no idea that's being/been addressed
@foobar889410 ай бұрын
Only two more to go until we can start calling it πthon...
@Terra_13510 ай бұрын
10:15 PUBLIC STATIC VOID MAIN STRING ARGS 🗣‼
@rursus83544 ай бұрын
10:26: C++ typing is a good thing! Typing has the two purposes of 1. helping the programmer catch errors, 2. creating an efficient compiler producing lightning fast machine code (if the programmer chooses to). If the answer on purpose 2. is "use another language" then Python isn't that language.
@calum.macleod10 ай бұрын
"and python 3.8 has a year to go so I can start pushing clients to upgrade to 3.9" :D
@sethdhanson10 ай бұрын
Been waiting for a 3.12 take from mCoding. Awesome!
@southernsunreviews59322 ай бұрын
On types or dictionary question you asked about. In c# we have enums that you r able to cast the value or str. And values could change depending on what the enum is used for. Then you want to use kwargs because you don't know how the structure changed. Like in reflection scenarios. Thanks great update And you explanation about square and override is a nice explanation of polytechnic methods if they were wondering how polymorphism relate back to real life scenarios instead of foo
@volbla10 ай бұрын
I also have had to write my own batched function. Since itertools has pairwise you might think it should also have an n-wise, but not so until now.
@danmar0079 ай бұрын
Finally!!! I've been waiting for this to start learning Python.
@norude10 ай бұрын
Static type gang here 👇
@thomasbates91899 ай бұрын
How did you learn about all the python language features you currently know how to use and what motivated you to learn them? Many times I watch your videos and I see you use something that I wasn't aware of before like __slots__ and other items like that.
@georgplaz10 ай бұрын
as someone who learned programming with java, the new generics make me so happy 😊
@gautam-narula9 ай бұрын
Getting ready for the next billionaire to be someone who made “don’t Java my Python” bumper stickers
@recoder70610 ай бұрын
Looking forward to 3.14 version. I hope they gonna call it Pi-thon
@l3gacyb3ta2110 ай бұрын
woa! I love the static typing stuff
@MrAlanCristhian10 ай бұрын
Override is my favorite. I love it.
@joshuaraciti9 ай бұрын
Can’t wait for Py 3.14
@hglbrg9 ай бұрын
Finally a youtuber who knows how to pronounce et cetera properly. You deserve a like just for that.
@bswck10 ай бұрын
one of the best updates ever
@Creadeyh10 ай бұрын
Is the debugger improvement applied to the integrated vscode debugger or do you have to use the sys.monitoring yourself ? Sorry I don't really know how debuggers work internally
@WesYarber9 ай бұрын
Bump
@tomasbernardo597210 ай бұрын
Can't wait for python 3.14, python π
@NithinJune10 ай бұрын
Love this form of video with the ratings! Very engaging...
@SniperMayer10 ай бұрын
I really hope 3.14 will be named Pithon
@plagosus10 ай бұрын
I'll be waiting for 3.14
@felixfourcolor10 ай бұрын
The generic typing is the best! I'm disappointed of the performance though. 3.11 vs 3.10 was a clear upgrade, while 3.12 barely changes, some programs run even slower.
@trag1czny10 ай бұрын
Great vid as always 🎉
@bswck10 ай бұрын
discord gang 🤙
@IterativeTheoryRocks8 ай бұрын
Marvellous. Loved it.
@sehaless10 ай бұрын
Not that I have a use case for it, but I am curious. How do immortal objects actually work? Is there a way from within python to mark an object as immortal or is that fully up to the C implementation to handle - so only code that is partially C can benefit from it atm?
@betterinbooks10 ай бұрын
new way of creating types is a huge change.
@danielgysi572910 ай бұрын
I can't decide if a smaller update like this with less new syntax is refreshing or boring
@prawnydagrate10 ай бұрын
man you are literally the best python programmer i've ever seen
@BosonCollider10 ай бұрын
Immortal objects would be a no-op in pypy. Refcounting is just inherently ugly if you care about performance at all. I wish that python3 had just dropped refcounting and used a proper GC in python.
@rasputunga10 ай бұрын
`batched` function is GOAT
@seifenspender10 ай бұрын
These changes all sound amazing.
@bearwolffish10 ай бұрын
wonderful update
@maxgtheone10 ай бұрын
Missed a great opportunity to put the Twitter logo at 9:00 haha
@Balaji-qq9lc10 ай бұрын
I really hope python will be called as Pie-thon when 3.14 is released
@19DonCorleone8710 ай бұрын
Thank you for the summary. It was super useful. The rating at the end of ever ysection feels kind of subjective and arbitrary.
@lukekurlandski765310 ай бұрын
I love python type hints, but not gonna lie, without rigorous type checking, I’m skeptical whether this kind of “advanced” typing is actually useful…
@MephistoDerPudel10 ай бұрын
Immortal objects may be useless to most projects, but for those, for which it is a problem, it may resolve a bit PITA.
@Vivraan10 ай бұрын
10:25 you forgot noexcept(noexcept(L)) lol
@ivancota976210 ай бұрын
Can't wait for 3.14 - Python Pi 😊
@mattlau0410 ай бұрын
I was waiting for release really patiently, the new type syntax and f-string syntax are such amazing changes
@jadencorr689710 ай бұрын
kwargs typing is useful for framework-like code. Because it is not obvious which parameters are accepted by **kwargs.
@RichardHamnett9 ай бұрын
Can't wait for 3.14 - then we'll have Piithon
@sabihass536110 ай бұрын
Thank you!
@notplancha1318 ай бұрын
0:47 is (float, int) here mean that T will be a tuple, or will it be either a float or int?
@Jeyekomon9 ай бұрын
It would be awesome if you made a video about generic functions!
@wizpig6410 ай бұрын
Love your music by the way
@_-_--_10 ай бұрын
great video. thank you
@kareemmika621010 ай бұрын
The new generic type syntax looks like GO. and i love it actually
@k98killer10 ай бұрын
I don't get why you would type hint kwargs that way instead of just type hinting the named kwargs after the "/, *," in the function signature, e.g. "def thing(self, /, *, kwarg1: int, kwarg2: str)"
@curtmcd10 ай бұрын
Good stuff. Generics have come a long way. Now we need currying. Nits: is that min_max generic at 0:13 supposed to return triples? And at 0:49 shouldn't it return self.seq[item] or something?
@FrederikSchumacher10 ай бұрын
Currying has long been in Python: functools.partial or functools.lru_cache
@lawrencedoliveiro910410 ай бұрын
We already have function factories and class factories. What more do you need?
@kirilplatonov442310 ай бұрын
Batched finally here! I no longer have to produce weird magic tricks with iterator multiplication
@IamusTheFox10 ай бұрын
Wow, python has changed a lot. I learned 3.1 and haven't had a reason to keep in the last few years
@nikhildaram335410 ай бұрын
Streamlit is not available in python 3.12
@HoangoKidZero4 ай бұрын
Hmm... A video on Python 3.12 with a slightly over 12-minute runtime :D
@SourabhBhat10 ай бұрын
For me the new Generic syntax and @override is 10/10. The generic syntax would have made it easier for me to read though!
@FrederikSchumacher10 ай бұрын
You are aware that anything in Python is a generic? "def foo(bar)" means bar is generic (as is the return value). It's not untyped either, because of "object" being the base for all Python values? There's only limited amount of usefulness in something like "[X where Parent]" as documentation.
@lawrencedoliveiro910410 ай бұрын
I think the C++ syntax was stupid. And it still doesn’t let C++ (or Java, for that matter) expression Python concepts like function factories and class factories.
@SourabhBhat10 ай бұрын
@@FrederikSchumacher Yes. Python is too generic, which doesn't allow to express the intent of the programmer. The generic specification is just a hint for IDEs to check the sanity of the code. For example, a class of type T, has methods that adhere to the same type T.
@JohnFallot10 ай бұрын
Let's gooooo!!!
@my_master5510 ай бұрын
My crazy mind though mathematicians just dropped a new Pi value 😭😂
@tuberroot111210 ай бұрын
Can't wait for Python v 3.14159 running on Raspberry pi.
@rodrigof.595610 ай бұрын
Just two versions left
@twentytwentyeight10 ай бұрын
Feeling like the error message update has been a long time coming, wonder if rust launching with readable traceback added to the push
@TheSkepticSkwerl10 ай бұрын
Python doesn't have static types. Now we need generics? Wtf
@avasam0610 ай бұрын
You mentionned setuptools. But not that *distutils* is completely removed from 3.12! setuptool still monkey-patches in its special vendored version. But that means if you never imported setuptools, then imports of distutils will fail.
@CppExpedition10 ай бұрын
Best reviewer 🎉 :)
@rutabega30610 ай бұрын
Yo the next version is 3.14 thats dope
@dailynarative10 ай бұрын
im strugle to find pyaudio for this version of python3.12
@Jake906610 ай бұрын
Python 3.7? Was that the one that made me continue using 3.6 well into its "security updates only" stage?
@mhm642110 ай бұрын
They are basically copying TypeScript and changing the design a bit.
@DecimasoN10 ай бұрын
3:14 you mention PEP 648 when it's PEP 684 :P
@fieldtm1able10 ай бұрын
When can we get 3.14thon?
@aka510 ай бұрын
A lot of changes dedicated to typing for a dynamically typed language...
@JellyFoxYT10 ай бұрын
I don't really understand the type params section. Can someone explain it?
@konpet424810 ай бұрын
Python 3.7 is now deprecated, huh? Feels weird, since that's the version I started coding on. But ofc it needed to go eventually. Other than it having a special place in my heart, there's no point in holding onto it
@Impatient_Ape10 ай бұрын
"...and then you have to learn about category theory..." 😆
@Kikujiro36010 ай бұрын
I hope they rename it pithon when it reaches 3.14
@danielschmider506910 ай бұрын
3:13 its PEP six- eighty-four, not fourty-eight!
@secondengineer981410 ай бұрын
It's wild how much static typing has been added to a dynamically typed language
@FrederikSchumacher10 ай бұрын
Fortunately, that stuff is still only "type annotations". Meaning, the interpreter, runtime and compiler doesn't do any checking beyond "must be valid Python expression". Which means you can do things like: def tricky_function(tricky_argument: "Beware of using dict[str, Movie] here, it breaks") -> "Mostly None, but List[Movie] on Sundays": pass And it's valid Python.
@carnap35510 ай бұрын
What's "type variable"?
@marcinpohl326410 ай бұрын
What about Linux perf support? I'd love to see a good example of it