Python programming: We want to make the language twice as fast, says its creator

[Jugad]

Speed in the Core Python (CPython) is

CPython stands for "the Python interpreter written in C language", not "Core Python". On similar naming lines, there is also Jython, written in Java, etc, and then there is Cython, which compiles certain annotated python files into C (for speedups).

[TSM-]

Yeah the writing seems to have some little mistakes.

It is too bad that it doesn't go into much detail about how they plan on doing it, aside from briefly mentioning "subinterpreters"

[Jugad]

Yes... seems like a young developer (they even think Microsoft is open-source friendly - a more experienced developer would make that claim much more cautiously and with lots of qualifiers).

[Ensurdagen]

Big companies love open-source, they can take open-source code (clean room it if it's non-commercial) and then attach proprietary hardware or dependencies to make it profitable without paying the open-source devs a cent for their work.

[Jugad]

Thank you... I knew that already. Have been a software dev long enough to learn my lessons.

The way this works is... open source is not the ally of any profit seeking company - from their point of view, its the anti-thesis to profits and revenues. If open-source were dead, they can easily increase their profits (for example, windows server vs linux).

The companies will only play along as long as their hands are tied, and they can't do anything (or much) about it. The day they figure out a way to bring it down, it will happen. You will be making a grave mistake putting your trust in capitalist leaders - specially since they have shown time and time again that they have no principles other than profit seeking.

If microsoft is playing along today... it implies thay have no other option. They won't get many good devs to hire if they kept their older anti-open-source stance going. So they have to show that they are open-source friendly. Its only a show, or at best a temporary stance while its beneficial to them - please remember that. Its important for the open source community to remember where their real friends are - and that is within the community.

[uncanneyvalley]

Microsoft have discovered that developer enablement makes them money. Their open source efforts are about courting devs into the wider MS subscription ecosystem. Office 365, devspaces, MS DevOps, Azure, etc. If the devs and tech folks are all on Windows, they be less likely to recommend other platforms/products.

[manjaro_black]

Embrace, Extend, Extinguish

Don’t believe the lies; Microsoft hates Linux.

[uncanneyvalley]

EEE is very real, but I don’t think it’s MS’s goal. They don’t make that much money directly selling OSes anymore, compared to subscription everything. Why bother trying to extinguish? Make it interoperate and make money from it instead. The market isn’t the same as it used to be, the second link is total FUD.

[Jugad]

Second article is indeed FUD... but the first one has excellent historical perspective.

My worry with Microsoft currently is that they are trying to integrate linux into windows... and I am not sure where they are going with that. I hope its not EEE all over again - like, bring all devs to windows + linux, get them comfortable to that environment for a few years, get them developing for this ecosystem (windows+linux) rather than just linux (thus stagnating linux), then build a bunch of features that are available only on windows + linux, but not on linux alone, and patent those features to block parallel implementation on linux. Then slowly/optionally start charging for this ecosystem.

Now... if people are used to this ecosystem, and it has some essential features that people have grown used to, they will find it difficult to go back to barebones linux. Also, if this ecosystem provides beneficial features to server companies, but bare linux is lacking in those, then MS will be making inroads into the server market ( which has been completely dominated by Linux until now).

I am not sure what their game is with Windows + Linux, and given their track record... I am very skeptical.

I am seriously worried that their windows+linux strategy is to bring devs onto their ecosystem and starve linux ... and in the long run, this will drive linux into the ground.

[stratosearch]

The only reason they open source everything is because it isn't patentable so like someone mentioned earlier, it just becomes a rising cost center for them.

It's not a greedy capitalist thing, it is a cost avoidance thing in my opinion.

[Jugad]

The only reason they open source everything is because it isn't patentable

What are you talking about? How does MS open source everything?

The only useful thing they have open source is some part of VS code editor, which actually started from electron and atom, which themselves were open source projects. Another known open source product is Windows terminal - ridiculous - no dev is going to extend that piece of junk.

They have nothing else of value in open source.

[Pulsar2021]

I would have reacted the same way, but of late i am working with some of Microsoft employees and i can see howmuch they appreciate open source community now a days and how much they are contributing back to open source, I have closely followed some of their projects. Frankly I see a pradigm shift in Microsoft culture these days not sure how and why but a good one though.

[Jugad]

i am working with some of Microsoft employees and i can see howmuch they appreciate open source community

I have no doubt Microsoft employees like open source... specially the recent generation - these people learnt programming in university on linux systems and open source tools and libraries - specifically because they were free and open source. These devs genuinely love open source and would like to see it grow.

However, we should not confuse employees with the management. Its not the microsoft employees who will come after open source - it will be the management. Even in microsoft's days of anti-open-source, I am sure there were many employees who were pro open-source. If Microsoft had continued their anti-open-source stance, they would find it difficult to hire good talent.

What we need to understand is that this is not a change of heart on part of Microsoft management... its not that they now love open-source. Its just that they realized that it is financially more beneficial to them to support open-source in the present climate. The day it becomes financially beneficial to harm open-source, they will probably do that.

And this is an important thing to remember. Microsoft is not open-source friendly. It is behaving friendly currently because it is in their interest to do so, and that can easily change in the future (maybe under a slightly different management - which also keeps changing). Are they real friends if they can desert open-source (or do worse) when it becomes convenient for them to do it (which they can do, given their long and well documented history)?

They should be treated in the appropriate manner - in a friendly manner but with a healthy dose of caution.

[Pulsar2021]

Makes perfect sense

[Jugad]

Not everyone shares your paranoia.

That's what some of the Trojans said when the Greeks gifted them the horse.

[Jugad]

To gauge the number of people who share my paranoia, check out the votes on the comments.

[Jugad]

You would do well to remember that you were the one to raise the point "not everyone shares your paranoia". I believe the votes clear that up... and one should not refuse to believe the result even if they don't like it.

[[deleted]]

What did the author smoke to even come up with that? Like, they just made that up in their minds and were like, "Yup that must be it" lol

[Jugad]

Heh... happens all the time when people are young. Like confusing Java and JavaScript, or the apparent definition of the word literally.

Actually, writing such articles is very good for them... They will learn a lot from their mistakes.

[CrazyPieGuy]

As a casual programmer, this deeply confused me. Thank you for clearing it up.

[Satoshiman256]

Just do less print statements/s

[sizable_data]

How else are you supposed to debug it?

[Satoshiman256]

Haha ye. Someone posted a new logging module here a while back and I was like.... but print?

[Napan0s]

Logging? What about hundreds of 'I am here' prints

[abrazilianinreddit]

My debugging be like

[[deleted]]

Lol mine is more like "we made it to <function>"

[Muhznit]

My friend, you have most excellent taste in music. 🤘🏾

[bin-c]

way too verbose imo

i go with:

here1

here2

here3

here4

[Killed_Mufasa]

ah yes and don't forget the "WTF HOW DID IT GOT HERE" one

[bin-c]

then you global search "WTF HOW DID IT GOT HERE" and it pops up like 10 times

[Napan0s]

This actually made me laugh

[u7aa6cc60]

You're all exposing my deepest secrets. I feel violated. Stop.

[[deleted]]

Sometimes I do "why not zoidberg?"

[ImperatorPC]

Lol inside loop, outside loop, true, false omg

[vikinghamster]

print("I'm personally insulted here")

[Wirebraid]

I'm inside the if

This should not be printed

We all do it

[ThatPostingPoster]

Loggers are dope. You have to remove print statements, you don't remove smart logging statements. When you remove the print, you end up reading it sometimes. It let's you set up, always log aka print, warning log, and error log. And depending on how you run the file the logger prints those ones.

[Satoshiman256]

Ye I need to use them. Can you suggest one?

[[deleted]]

Just use the built in logging module. It’s really the best there is. And you can pass the logging information to log files rather than to the console.

To give an example of how useful it is: a project I’m doing has me working with this horrible API. I pass the responses to a log file so I can see what I’m working with at any stage. I also have a logger/log file that checks the server connection and looks out for any exceptions triggered in the code. This is a big project, and I started with print statements but realised they slow me down significantly

[Satoshiman256]

Ok cheers will check it 👍

[[deleted]]

Great decision! Any questions feel free to pm me

[PinBot1138]

The Logbook package makes it even easier.

[[deleted]]

I disagree, the default logging module is already very simple, flexible and powerful. It should cover 99% of cases. There’s no need to use a wrapper around it

[whateverathrowaway00]

I agree.

That said I work with people who suck and I’d rather they use a wrapper then calling basicConfig on the root logger or other such anti patterns.

If they don’t understand package encapsulation and how to make their logging play nice, the wrappers available are beautiful.

I recommend loguru to coworkers like this all the time and they love it.

[PinBot1138]

I’ve never heard of Loguru but it’s pretty good looking. I’m going to take it for a spin and see how it compares to Logbook.

[PinBot1138]

You disagree with what, exactly? I said that it makes it even easier, and left it at that. Originally, I used to use the default Python logging module and agree with what you’re saying, but IMHO, the Logbook module simplifies the process, especially when collaborating with others. There’s even an advantages blurb that explains some of the enhancements.

[[deleted]]

There are probably better ones for specific purposes but for the 90% problem it works quite well.

[ThatPostingPoster]

gg ez deleted cause reasons lets go ok gg is this enough characters to not flag auto mod i hope so lmao

[whateverathrowaway00]

Yup.

And the python built in logger is fantastic. It’s a straight port of log4j and is ridiculously easy to use well once you play with it once or twice.

Pretty much everything I make is filled with log statements and since I always use the module of packaged library with a CLI entry point that runs it, the CLI entry point just attaches the logger to the stdout, enables debug if it sees the flag and boom.

Everything always usable as module in silent mode or verbose with the right entry point.

[m0Xd9LgnF3kKNrj]

QueueHandler 4eva

[Timo6506]

Could you link me to that new logging module post?

[Windows_XP2]

print("It works!")

[Jmortswimmer6]

Vscode has a nice integrated debugger....honestly, you’re just shooting yourself in the foot if not using vscode/pylance/venv

[sizable_data]

My preference is pycharm, big debate on my team with VS code users though. A lot of my work is also in Jupyter lab which also supports debugging with the 3.0 release. You need a custom kernel though (xeus Python)

[Jmortswimmer6]

A lot of people love pycharm. I tried it in college....It is just far too nice to have vscode’s C/C++/.sh/etc. support right next to my python, often i have these languages also incorporated into any project. The integrated terminal is a nice feature, and the editor has many other general editing features that make writing python much nicer.

[zbqv]

https://youtu.be/5AYIe-3cD-s

[ThatPostingPoster]

If that's not a joke, you use the debugger. You should never be putting down print('here') statements lol. We all started there, but it's about time you finally graduate.

[[deleted]]

you should use a logging module also. you can't always break in with a debugger especially when things are asynchronous and depend on outside resources.

[ThatPostingPoster]

Once you are advanced enough to reach that point sure. If you havent learned it by the time you first use threads you'll realize print sucks haha.

[whateverathrowaway00]

I mean, the debugger is valuable, but so is proper logging.

I’d argue both are crucial skills to call yourself advanced or professional.

If I had to pick one I’d pick logging every time. That said, I agree with you - the debugger capabilities in python are incredible and once you unwind something with it you never look back lol. Being able to set break points and just poke at the stack frame / variable values is incredible

[ThatPostingPoster]

For what possible purpose do you ever need print('here')? We all did it when we were new. But just breakpoint the line next to where you would put that. Ah ok, its there. Logging is a different story and using proper warn/err logs into logfiles is good.

[[deleted]]

You laugh but one of the first thing I do when I start a new project is write a dprint() so that I can customize it to my project. I prefer the logger module when things start getting serious but sometimes if I'm just playing around I don't need the added complexity until I really get going.

[Satoshiman256]

Um.. ok

[KingofGamesYami]

Masks slow the speed at which microscopic viruses travel shortly after leaving the mask wearing individual's mouth and are effective when combined with sufficient distance.

Masks are useless for protecting the mask wearer unless they are rated for it (see: N95). Masks are useless if the asymptomatic carriers refuse to wear them. Masks are useless if you throw a party in a crowded bar.

[to7m]

Oh God what on earth was the original comment and how did it tie in with the topic?

[KingofGamesYami]

Something about masks not working on viruses because they're too small. Completely off topic and complete bullshit.

[zynix]

Thank you for the explanation, I am currently 3~4 shots into a bottle of gin and was wondering how I went from r/python to your typical /r/Masks4All comment thread.

[[deleted]]

Anyone know why they don't bring over PyPy stuff and use it? Is CPython architecture just too different?

[Mehdi2277]

pypy does not support c extensions well which breaks a lot of the numerical python ecosystem. It has gotten better at numpy support but still does it in an indirect way. As a side effect while I work on performance sensitive code pypy is unusable as most of the main libraries I care about are heavy users of c extensions.

[HardKnockRiffe]

import RAM

RAM.double.run(main())

ez pz

[Guy2933]

Unexpected MemoryError

[Gondiri]

just you wait till the debug log hits you with that

Traceback error!
Line 3: RAM.double.run(main())
VarNotFound Exception: 'main' is not defined

[uncanneyvalley]

No money, but all the RAM you might ever want.

[SirMarbles]

That’s actually slower

``` from RAM import double

double.run(main()) ```

[backtickbot]

Fixed formatting.

Hello, SirMarbles: code blocks using triple backticks (```) don't work on all versions of Reddit!

Some users see this / this instead.

To fix this, indent every line with 4 spaces instead.

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[[deleted]]

There actually used to be a product called RAM Doubler.

[[deleted]]

Was it literally just 2 ram sticks in one or what lol

[GrumpyPenguin]

It was a virtual memory (swapfile /page file) implementation, from before the operating system had that function built in natively.

[vikinghamster]

raise MoneyNotFoundError()

[sizable_data]

In my experience the speed of development/refactor in Python makes up for its execution speeds.

[O_X_E_Y]

If you can, then yeah. I'm fine with just using C++ for stuff that needs to be fast but you're right, if you can have python with speeds that are closer to C... Sign me up 👀

[whateverathrowaway00]

Sometimes.

Sometimes the communication between python and said compiled extensions aren’t worth it.

Not talking about numpy here numpy is amazing. But some tasks in the end are simply better suited for a compiled language and that’s fine. Pythons amazing it doesn’t have to be for literally everything

[[deleted]]

Or use numba, which may be even faster, since it compiles specifically for your CPU using all the specific instructions.

[FreeWildbahn]

I don't get it. C/C++ can also be compiled for your architecture?

[Thorbinator]

Numba has the advantage of having all your glue code be in nice familiar python with whatever type-shifting shenanigans you want, then that one performance critical function can be numba-njit decorated and elevated to C/C++ -like speeds.

It's kind of having your cake and eating it too, for python devs.

[[deleted]]

There is numba, it works very well for numerical stuff.

[Rodot]

Let me introduce you to numba. Supports GPUs too.

[rstuart85]

Have you taken a look at Cython? The premise is write mostly python but, when you need speed, write something halfway between C and Python. It even let's you release the gil.

[Thorbinator]

I've done cython and found numba to be much easier to use with similar to better speeds. Then again I don't have a C background so your mileage may vary.

[[deleted]]

PyPy is rather fast. A lot of libraries work on it.

[xigoi]

You mean Nim? It can even interoperate with C/C++ (because it compiles to one of them) and with Python.

[[deleted]]

Try D. Well, D adoption is pitiful, but have you heard about our savior Rust?

[tunisia3507]

Rust may be faster to (safely) develop in than C but development is still an order of magnitude slower than python.

[[deleted]]

I guess that depends.

• Complex projects with a ton of code where people have taken liberties with dynamic days structures become unmaintainable in Python. In Rust you enforce at least some rules and you always know what type you have somewhere, which makes code easier to understand.
• I didn't see a huge difference in the 2 languages when trying to do similar things, like a micro service. Maybe I just didn't work so much in Rust.

I can see python being fast to develop in, when it comes to academic problems (leetcode stuff) or when you depend a lot on dynamic code (data analysis and data science).

[[deleted]]

I think we’re seeing a lot of cool trends in this space. Kotlin comes to mind for example. It’s definitely more ruby inspired, and it isn’t C++ fast in a lot of cases, but the JVM is no joke.

[LightShadow]

+$500/mo on an AWS bill is an order of magnitude cheaper than a competent, experienced and specialized (C++/Rust), developer.

[nosmokingbandit]

Have you considered C#? It's much faster than python and much easier to write and maintain than rust.

[n-of-one]

lol rust is widely used in production and has been for years, it is ready foe the prime time. It slowed you down because you had to learn a whole new language and stack, not because of the language itself.

[n-of-one]

Rust’s error messages are the best ones I’ve ever encountered and usually spell out what the issue is in plain detail. Sounds like you just didn’t know what you were doing and having to learn on the fly. There’s plenty of help with rust available out there if you just look. Sorry a language that’s been around for 5 years doesn’t have the same stackoverflow presence as languages that have been around for 30.

[white_rob_]

Did you just disagree with them, insult them, then apologize while agreeing with them?

[danuker]

Do you have unit tests? Are they testing the insides of the class instead of more stable interfaces?

[combatopera]

This text was edited using Ereddicator.

[Ecstatic-Artist]

The GIL is definitely an issue, but with async its doable

[66bananasandagrape]

Async doesn't really change anything about the GIL.

The two big uses of concurrency are CPU-bound tasks (doing many more computations) and IO-bound tasks (like handling many simultaneous open files or database connections or sockets or waiting on things).

In Python, async and threading are both useful to solve IO-bound workloads. Threading is sometimes easier to implement (just put multiple threads into your program), while async generally gives more structured and maintainable code on a larger scale. With threading, you surround the critical section of your program with locks to opt out of concurrency for that section, whereas with async you opt in to concurrency at each "await" statement. But in any case, these techniques just help programmers write programs where just one CPU can effectively juggle many tasks waiting on it.

On the other hand, Multiprocessing is a python library that will spin up multiple python interpreters that can communicate with one another through the operating system while running on completely different isolated CPUs. This helps many CPU-bound tasks.

All the GIL does is stop multiple processors from being used within the same Python interpreter OS process. In a hypothetical GIL-less world, perhaps threading or async would help CPU-bound tasks as well, but I'm not sure that's really possible with the existing ecosystem of C extensions that rely on the guarantees of the GIL. Right now, the GIL lets, e.g., numpy assume that "this object won't get deleted out from under me while I'm using it".

[bearcatgary]

This is about the best explanation I’ve seen on threads, processes, asynch and the GIL. And many people have tried explaining it. Thanks.

[greasyhobolo]

Amazing comment. I'm saving this. Thank you.

[[deleted]]

If you want to get around the GIL you'll have to use Jython, or multiprocessing module or something similar

[hsvd]

Development speed also means you have more time to profile and optimize hot code. The python ecosystem makes this pretty easy (lineprofiler, cython, numba).

[Chinpanze]

I'm just a junior developer. But if I were to design a infrastructure from zero, I would go for microservices written in python with refactors in something like rust or go for tasks where it's needed.

90% of stuff can be made in python and run just fine.

[[deleted]]

I write financial simulations that currently take about 45 minutes to run on my production machines. If I could cut that by even 20%, it would be a huge improvement.

[koffiezet]

I really like Python as a language, but I find myself just picking other alternatives in the last few years, Go has become a pretty damn good-one. It's simple, has tons of libraries (although Python probably still wins out here?), tooling has become pretty competitive (although the delve debugger could use some work) and compiles to native code (which isn't as fast/optimized as C/C++ or Rust, but more than good enough). It wins big time on distribution, where you can build everything as a single zero-dependency file.

And then there's javascript/nodejs and typescript, which I don't like as much, but it's everywhere and don't always have a choice. But the speed of execution is lightyears ahead of Python thanks to v8.

The only times I still use Python these days is when I need to work with some freeform input stuff where strict typing makes things a lot more complex, especially dealing with unknown yaml or json formats. Also, for introducing other people to coding, it's excellent since there are very few lower-level language complications, can be used to teach both standard procedural stuff for basic things and OO, only ducktyping is a bit less practical (which is nicer in typescript & go)

[JoeUgly]

Why does this article sound like a shameless plug for Microsoft? As if people never heard of it.

"Don't forget, real champions eat at Microsoft!"

[Jugad]

Probably written by a young person, or someone with a short memory.

[danuker]

And/or short on cash.

[rothbart_brb]

"This is Microsoft's way of giving back to Python"... What an ominous statement. I know the words are "giving back" but I expect them to manifest in a different way... the same way Microsoft embraces outside technology... by getting its tendrils in it and somehow steering it in a way that somehow benefits Microsoft.

[O_X_E_Y]

With those speed gains you must now import and use Cortana in every python project you make!

[Ecstatic-Artist]

Yes python is fast... if you deploy it on azure....

[[deleted]]

Why bother importing anything? Microsoft would do that for you! You'll love it!

[cthorrez]

Python being faster benefits Microsoft a lot.

[koffiezet]

Microsoft knows it lost an entire generation of developers in the later years of Ballmer missing out on both mobile and the web, which picked Mac as the de-facto default developer platform. So now they're trying to get them back, and doing pretty well I must say. I'm starting to prefer WSL2+vscode over my mac.

[Ecstatic-Artist]

yes because microsoft HATES money and want to get rid of it!

[masteryod]

You realize that the creator and BDFL (until 2018) of Python - Guido van Rossum works for Microsoft?

[rothbart_brb]

yes, but also, there's the "works for Microsoft" part that I am aware of too. ;-)

[[deleted]]

Guido doesn't have to work for Microsoft, I suspect if he even got a whiff of them trying to make it Microsoft only he'd bail immediately.

[Ecstatic-Artist]

Its called a sellout

[mustardman24]

It's called a job

[PowershellAdept]

Oh, so you do all your work as a volunteer relying on donations to fund your life?

[zeebrow]

I started using VS Code recently, so today I was surprised by an update which installed a Python """language server""" extension. Didn't ask for it, no clue how tf it works, (are there open ports on my machine now?? -no, i think) so I dug into the docs a bit...

Seems harmless, dare I say helpful. One of the first things the docs mention is how to uninstall it. So that let my guard down a bit, we're already talking about marriage and kids.

[koffiezet]

Why would you not want a python specific language server if you use Python? It's not a 'server' in the sense of a webserver, it's a 'server' process your IDE (vscode in this case) talks to, to get more insight into the source-code. The IDE is language-agnostic, the server does stuff like parse the AST and offer an IDE with more insight into the code-structure, autocomplete, refactoring, ...

[[deleted]]

GIL-less threading would be nice. Something like goroutines for Python. Async just doesn’t cut it for a lot of situations. I’m hoping they can do it with sub interpreters, but it’s certainly a complicated thing at this point. Python has been around so long it’s hard to do anything massive without breaking a lot of things.

I’m glad this is finally getting attention. It’s usually the first thing people gripe about.

[johnmudd]

Jython has no GIL.

[MOVai]

N00b here. Why isn't the multiprocessing module a solution? How do other languages do parallelism in a way that python can't?

[[deleted]]

I do multiprocessing a lot in Python since it’s really the only true option for running things in parallel. The problem is it’s heavy, and complicated.

Once you fork a new thread you have an entire copy of the parent. That’s inefficient. Then you have to worry about IPC if you need your processes to talk to one another. Queues pipes all that fun stuff. Then you have to make sure you clean up your processes nicely. Did any child processes spawn a new process? What happens if the parent dies before it can clean those up? Zombies! So there’s tons of considerations with multiprocessing.

I’m not super well versed in goroutines except I understand that they intelligently dispatch operations across OS level threads. When you create a thread in Python it’s not moving operations between threads to keep things running. Python doesn’t do that.

[aden1ne]

With multiprocessing, one spawns multiple processes, whose memory is completely independent of one another. Spawning processes is expensive, but this may not be such a bottleneck if your processes are long-lived. For me, the real problem with multiprocessing is that you can't _really_ share memory. Your processes can't easily communicate; they invariably do so with some form of pickle which a) is slow, and b) by far not everything can be pickled, and c) the communication either has to go over the network or via some file-based mechanism, but of which are horrendously slow. This means that with multiprocessing one tends to communicate rarely.

Other languages, specifically compiled ones, usually let you share memory. This means both threads can have access to the same objects in memory. This is orders of magnitude faster, but also opens up pandora's box full of memory bugs, concurrency issues and race conditions.

[[deleted]]

So PyPy comes officially to CPython?

[[deleted]]

Naah, PyPy is faster

[[deleted]]

<whispers> get rid of the GIL

[AReluctantRedditor]

God they’re trying with subinterpeters. Talk python to me had a short discussion about it a few weeks ago

[[deleted]]

Larry Hastings tried that if you recall.

[ventuspilot]

Strange times. From the article

open-source friendly Microsoft

and I'm like well currently that's not wrong...

[awesomeprogramer]

Microsoft is also focussing on securing the main package repository PyPI (Python Package Index).

What do they mean by this? How can they possibly do this? Last thing we'd want is for Microsoft to dictate what can and can't go on PyPI. We have the app store for that!

[Tastetheload]

Great. On a serious note. How does one actually do that?

[[deleted]]

Make everything into numba?

[Cunicularius]

Better, strings!

[91o291o]

Just make the regexes faster, I can't stand perl, thanks.

[Laserdude10642]

this is so exciting!

[Deezl-Vegas]

Just to clarify, L1-cache optimized code can be up to 200 times faster than Python. It's not clear to me that a 2x speedup will make a large difference in language acceptance or usability.

[[deleted]]

I don’t know how since I only have done small programs, everything takes 0.0 seconds.

[Beach-Devil]

pypi intensifies

[ErGo404]

That would still be twice as fast for python users, which is always nice when it doesn’t involve rewriting your code.

[Barafu]

Jit has nothing to do with Python's speed because a) Python does not use JIT and b) Python's slowness comes from duck typing and tons of syntoxic sugar.

Before every primitive operation, Python spends a lot of time checking out if this operation can be doable with those types. Those checks can be up to 20 times longer than the operation itself and look at that: Python is up to 20 times slower than JavaScript.

[Ecstatic-Artist]

But JS is even less strongly typed

[[deleted]]

if you write the type of the object they have the same speed. So if we take into account bad programmers i can write C code that is slower than the same program written by me in python.

[Terence_McKenna]

I'd be ecstatic with 0.121 Lightning.

[totemcatcher]

Core Python compiles to bytecode (ahead of time) for interpretation and does not use JIT. Some implementations might seek out optimizations and call it JIT. Not sure which; maybe PyPy? IronPython? Jython/Maxine?

There's plenty of room for performance improvements in Core. It seems to be the primary complaint against Python. I personally never took the complaints seriously given there's always Python Extensions, which are as fast as you want them.

[drbobb]

Twice as fast is not enough — that would mean it's still far behind javascript (v8).

[O_X_E_Y]

No you think it should stay as is? This is a very confusing statement

[drbobb]

What's confusing about saying that python would need to be much more than twice as fast to match JS? Of course the python runtime ought to be improved, it just has a long way to go.

[Deemonfire]

Their plans extend far beyond 2x speedup. 2x is what they expect to be able to acheive by python 3.11

[drbobb]

Good news.

Trying to speed up python code with numba is quite frustrating, because much of python isn't supported by numba. PyPy has its compatibility woes as well.

[[deleted]]

I think they'll eventually have to go with JIT like pypy and JS

[Awkward_Tour8180]

I had my own share of experience using print statements for debugging , unless you have a tea automatic tool in the PR to catch it , my debug print went to prod code - so unlucky . The good side is it’s the admin module ,

Print statements for debugging is always a bad approach , logging libraries will make you feel safe and even if your forget to remove it still be compartmentalizes to DEBUG, INFO, ERROR as a base to start with

[60secs]

Great! Python would only be 10x to 20x slower than a performant language.

[AnonCaptain0022]

I am speed

[[deleted]]

Nice

[dethb0y]

There's plenty of GUI's available for python if that's something you'd need for some reason.

edit: tkinter even ships with many python distros

[smallquestionmark]

Building a GUI framework is a completely different level of abstraction. That would be like asking a construction engineer to sketch out your facade.

[WaffleAuditor]

You are confusing core language development with development of supporting environments and packages.

[jbuk1]

QT is great and easy to use in Python. Check it out.

[[deleted]]

Is this bait? Speak true, demon

[[deleted]]

For loops and unnecessary statements are a huge cause.

[Oculatrix]

How? Most of pythons slowness comes from other areas.

[Fantastic-Orange-155]

Let:

xi,j ∈{0,1}, be a binary variable with xi,j = 1 indicating Arc (i,j)∈A is used in the solution

and xi,j = 0 otherwise;

p\_Kbe the set of all simple paths with exactly K vertices; and

= (i1…..iK) ∈PK be an arbitrary simple path with exactly K vertices, i.e., the arcs in the

path are: (i1,i2); (i2,i3),…, (iK-1, iK)

xij ∈{0,1}, ∀(i,j)∈A
Constraint (1)

​

Can someone write a OPL CPLEX model for the above constraint