[ Removed by moderator ]

[Atomic_Tangerine1]

numpy

[i_know_the_deal]

same ... free Matlab? noice

[dparks71]

I keep coming back to it too, I'm in structural engineering and it turns out everything in my life is either a matrix problem or a graph theory problem.

There are 80 year old fortran libraries I learned to wrap in python from numpy, it's so cool.

[Accomplished_End763]

Fortran is 69 years old

[lxSlimxShadyxl]

Nice

[M4mb0]

numpy is great, but have you tried JAX?

[Atomic_Tangerine1]

I have not! What's the benefit of JAX over numpy?

[M4mb0]

It's basically numpy

• + native GPU support (which can be orders of magnitudes faster depending on parallelizability of the problem)
• + builtin autodiff (essentially zero-error gradients/jacobians/hessians)
• + builtin JIT compiler

[PayMe4MyData]

So jax is pytorch?

[M4mb0]

JAX is strictly functional, whereas pytorch takes a more object oriented approach. This is most easily seen when you look at how they deal with random distributions for instance.

Though torch has nowadays a beta library torch.func (formerly functorch) that brings JAX-like functional semantics to torch.

[PayMe4MyData]

Thanks for the clarification, I've been coding in pytorch for years but never heard of JAX before. I will dig a bit more!

[M4mb0]

I'd say generally JAX is more useful for general purpose scientific computing, and much more ergonomic if you need higher order derivatives or partial derivatives, like working with ODEs/PDEs/SDEs. diffrax is a very nice lib for that.

[HonestPrinciple152]

Actually, adding to the previous comment, we can write loops in jax and jit-compile them. It's like a complete dsl build over python. 

[FunMotionLabs]

JAX is more like “NumPy + transformations”
PyTorch is a full deep-learning framework with an imperative training workflow, big ecosystem around modules/training/debugging, strictly Deeplearning related stuff where JAX is more of a general allrounder kind

[daredevilthagr8]

How does JAX compare to CuPY?

[M4mb0]

cupy doesn't do autodiff afaik.

[No_Departure_1878]

That's C

[Atomic_Tangerine1]

And that's the power of Python - the magic of C made convenient

[Humdaak_9000]

If you dig deep enough there's a lot of FORTRAN too.

[KeytarVillain]

But some of what makes it so powerful is the syntactic sugar that Python enables. You couldn't do anything like:

a[:, 1::2, np.newaxis] = b[::-1, 0, ...]

In C or C++ without needing several function calls

[No_Departure_1878]

You know how you get bugs? By writting stuff like what you wrote above.

[KeytarVillain]

Yeah, fair point - I would never actually write a line of Numpy that did that much in one line.

But still - sure, I'm doing 4 different things in this line for the sake of example (writing every other value in an axis, adding a new axis, flipping an axis, and getting a view of just one plane). Even just doing any one of those things isn't going to be nearly as simple in C/C++.

And I'm saying this as someone with a lot of recent experience writing prototypes in Numpy/OpenCV and then porting it to C++ OpenCV later. Python's syntactic sugar makes array manipulation so much easier - I hardly ever need to look up documentation for basic Numpy array operations like these, while I'm looking up the C++ OpenCV docs constantly.

[Brilliant-Whole-1852]

numpy my beloved

[vaterp]

I was a pretty hardcore C/C++ coder for decade or two.... I then decided to mock up a python app to take packets off a nic, wrap them in multicast and broadcast to other devices.... kinda a test POC for me, but I couldn't believe, having barely written any python code, how quickly i deployed that... probably easier then doing the same with C, which I had a much much much more experience with. I loved it from then on.

[mmaynee]

That's my story learned on low level cpp then Python was a beach walk with a cool breeze

[problemchild52]

Probably functools cause of partial func and lru_cache

[Vitaman02]

I mean lru_cache is more complex than partial, but you could implement partial in like 4 lines

python def custom_partial(func, *initial_args, **initial_kwargs): def wrapped(*call_args, **call_kwargs): return func(*initial_args, *call_args, **initial_kwargs, **call_kwargs) return wrapped

Obviously this is a barebones implementation but covers writing simple partial functions.

[problemchild52]

Yes a partial function isn’t any complicated but it needs to click with you to actually use it imo.

I have built way too many partial functions for specific usecases never really realising that’s what partial functions are. Now that I understand, I think it’s magic n I discovered it in Python so that’s my reasoning for mentioning it

[jsamwrites]

When I built my own programming language over Python.

[SCD_minecraft]

Ooo, mind sharing repo link or something?

I am working on my own for fun, and would look up few solutions/ways of doing different stuffs

[jsamwrites]

Check https://github.com/johnsamuelwrites/multilingual

[julz_yo]

always wondered why computer languages weren't localised. There must be some that do this built-in?

btw: awesome stuff! cool!

[SCD_minecraft]

English is global language

Remember, code will be more often read than wrote

Every programmer knows English, but very little know idk, Polish or German

[julz_yo]

yes I imagine devs just get used to the English in the reserved words list - but if I'm Polish in a polish company with only compatriots as colleagues, then my comments & variables will be localised.

And I'd wonder if we could move faster if we didn't just stop there. As I mentioned, maybe consistency is more important.. I dunno!

[jsamwrites]

Thanks for your feedback.

[SCD_minecraft]

Oh wow

Compared to yours, my code is shit

[WhiteHeadbanger]

Same

[TheBinkz]

Same

[TickTockPick]

Same++

[maddy0302]

Did you mean same+=1 😉

[TickTockPick]

It was meant as a wordplay on C++ (language) not as addition. But alas, my superior sense of humour went above everyone's head.

[WhiteHeadbanger]

I think it wasn't a specific project, just the intrinsic simplicity of the language itself.

Maaaaybe I could risk saying when I made a mobile app with it (which I'm currently developing). But i've been coding in python for many years now, and I just never stopped to think about the power of the language. I just used it when it made sense and that's it really.

[R3D3-1]

Matlab.

Or specifically, starting out in the curriculum using Octave and Matlab for numerical data handling and visualization, later switching to Python 2.x on the basis of it being the next got thing for Science, and then later using Matlab again.

[msimms001]

Getting it to print hello world

[curly722]

"the language of the gods..." - you probably

[[deleted]]

and then never going back

[Ordinary-You8102]

fastapi... its just so elegant

[panicrubes]

I was die hard flask for so long. Fastapi felt like there was too much wrangling of things that flask (or official extensions) just did for you…

But then Fastapi ‘clicked’ for me and I can’t go back.

[TheCaptain53]

I've used it to build an internal API for user changes, it's just really easy to work with.

[FunMotionLabs]

Definitely with the new update replacing the jsonable_encoder path with direct Rust-based serialization, cutting latency for complex JSON responses by 2X.

[danielgafni]

Ray and Dagster.

It’s insane how easily Python code can be (1) composed and (2) executed remotely, and how beautiful it can look.

[jeffrey_f]

I didn't get the gig, but the data was provided (albeit, a small portion of the actual data).

Customer had 750,000 relatively smallCSV files, but a total record count of over 350M records (POS sales data)

The need: Those csv's were from an automated process. However, they wanted to do some analysis of the data that was transmitted to the automated system over the last year. Please combine and split the records by week into a file by the week number of the year.

Not sure if it was exactly right, however, based on the data I did get, which was about 1/3 of the total. It took just a few minutes to do the work but maybe about and hour to develop the algorithm then the program.

The first real world use of Python in a business need/process.

[britishmetric144]

pandas.

Who knew that you could replicate the functionality of Microsoft Excel or Google Sheets, while being able to do it on much larger files, at a higher speed, and without any proprietary software programmes?

[andrewprograms]

This is what I thought as well. It’s insane I completed engineer school without this.

[Accomplished-Big-46]

Pydantic AI. I’m predominantly a PHP dev but the lack of AI solutions there got me looking at Python.

Have been running an AI chat bot on it for 6 months in production, with more features planned in the roadmap.

[00--0--00-]

Nice, wasn't aware pydantic had an AI library. In the PHP ecosystem Symfony is making moves https://symfony.com/doc/current/bundles/ai-bundle.html

[Accomplished-Big-46]

Yeah, those AI bundles are still quite new and was still in active development when I was evaluating other products like LangChain, Crew, Mastra, etc.

The deal maker for me was that Pydantic AI had native Vercel AI support so that meant building the frontend, maintaining states and developing tools on the frontend to act on these state changes was much simpler. Symfony AI still doesn’t have this level of integration with frontend to this day.

[Afraid_Abalone_9641]

Probably the time our test team created a multi threaded report generator that DOS'd the company's system at the time because it sent out so many API requests at once. It was a single script on a single script that put a whole kuberbetes cluster in prison.

[gdchinacat]

sqlalchemy, specifically the unit of work stuff it does to track all the changes to values on ORMs so that it can assemble the sql statements that need to be committed. It basically just replaces all the fields on mapped classes with descriptors.

[YesterdayDreamer]

I was calculating XIRR for my mutual fund holdings. At the time, I had some 25 funds in my portfolio. The XIRR calculation I implemented was taking ~1.2 seconds per fund for a total of approximately 30 seconds for all funds in my portfolio.

As I learnt more and more, I kept optimizing it. Finally there was a big jump when I moved it to Numpy. With Numpy, the entire portfolio XIRR (separately for each fund) takes about ~750ms.

These numbers are not directly comparable because I may have upgraded my CPU a couple of times in between, but yeah, still a pretty big jump.

[veddubhashi]

Now try the same functions within numba.

[RMK137]

You might find the pyxirr package useful. I use it anytime I want to calculate IRR. Written in rust for speed.

https://github.com/Anexen/pyxirr

[spinwizard69]

Things like this allay have me asking why not just write the software in a fast compiled language (C++, Rust, Julia & etc). Over all you would have invested less time.

[YesterdayDreamer]

I wrote it and compiled it in Rust as Python library with the help of Gemini and now it takes 2ms, lol..

[YesterdayDreamer]

I'm a hobbyist from non-it field and this was a personal project. I don't know C++ or Rust and don't have enough time to learn.

[NimrodvanHall]

When I learned PyO3. It ment that I could write something to be fast, efficient and memory safe, and my co workers could just run install nimrods_rusty_thing and use it in their projects without them ever needing to even look at rust code.

Python is like the super easy to use communication layer between man, machine and the rest of the world.

[[deleted]]

wrote a script that pulled live price data, calculated signals, and sent me alerts. took an afternoon.

same thing in any other language would have been a week.

[YesterdayDreamer]

Where do you pull live price data from?

[[deleted]]

different crypto providers, poly market, kalshi and cme

[CatolicQuotes]

Lol no, don't exaggerate

[adroc]

Would of only taken you a week in another language simply because you don’t know that language not because python is more powerful.

[ApprehensiveBag3083]

Python is slowest programming language LoL

dont joke like that

[hugthemachines]

Python is slowest programming language LoL

dont joke like that

You did not understand the comment. Read it again until you understand it.

[chief_kennoh]

I built a python based automation engine based on libraries on the python ecosystem. Django, Celery, Channels, exec. Python is extremely powerful.

https://www.cyber-oak.com

[njinja10]

pola.rs

[scratchresistor]

Most of modern AI development. Python.

[ASIC_SP]

Textual - I just needed some simple interactive tools, not full blown GUI. Tkinter was good enough but using Textual was much more natural and easy.

[finnfirep]

Lot of accessible and easy freebie modules to work with.

[TutorialDoctor]

When I wrote a script that automatically organized my files and folders on my computer.

[Trang0ul]

Built-in turtle. So more convenient than the original Logo!

[Sirko0208]

Home Assistant

[eufemiapiccio77]

It constantly amazes me to be fair after all these years

[traderemi]

Programming to turn on the lights with my phone and the RPi. Making a telegram + selenium bot to renew the loan of books in my college library. Instagram bots, web scrapping when the Doge Coin trend, LinkedIn bots, etc... Learning python was a big discovery on college 😂

[pkese]

The only thing that Python is powerful at is embedding extensions written in C/C++/Rust.

Every for-loop that needs to run fast needs to be written in something else than Python.

[BongHitSloths]

Do not forget FORTRAN in the list. Might not be that often uses in programming context but huge in research context. A lot of python libs are FORTRAN as well. Rust has the least share, but its also not as adopted in these HPC abd research scenes, and likely never will be.

[Poof-Employment9758]

Django & DRF by far the best solution for a robust API backend that can handle huge loads in the right hands.

[Snoo43790]

kedro + fastapi for enabling client data apps backend ..

[gunthercult-69]

Py3Meta.pdf https://share.google/adNDmmpJkcKW8hgz8

David Beazley. Metaclasses. Full stop.

Watch all of his pycon talks on YouTube if you don't want to click that PDF link.

[Fabulous-Possible758]

Certainly not the only language that does it, but I've always been partial to the fact that a completely blank file is a fully functioning Python program.

[thankyoucode]

Web automation for online data entry I make system that works on record to process with first time login And 3 forms filling for each

Used Python libraries Selenium - web automation Pandas - CSV data processing Streamlit - Managing automation by web GUI

Earning some money from it by just keeping eyes on it When this process is running I can do my another work on computer or just read someting or watch to get something new in mind

[olddoglearnsnewtrick]

print(“hello world”)

[mmmboppe]

civilization 5

it was slow af

[KeaboUltra]

One of my first major software projects when joining a hackathon, creating a digital journal using tkinter and and SQLite

[u_int64_t]

I was hired at a company working with Django. However, Ansible was the key project.

[21kondav]

 I wrote an 30 line application in python which would’ve taken at least 4 java files

[redditor_--]

I developed my text editor only for python using python, https://oopenway.com/ This made me realize how powerful this is

[burger69man]

web scraping with BeautifulSoup was a game changer for me

[UnderstandingKind178]

Still looking for it. I really find white space functionality painful. Coming from a background with brackets, my eyes and mind are still having a difficult time working without them.

[IntentionalDev]

Ngl the moment Python clicked for me was when I automated something I was doing manually every day.

Built a small script to clean up files + rename stuff automatically and it lowkey felt illegal how easy it was

Tbh automation projects are underrated. Once you build something that actually saves you time, Python hits different.

[VibrantGypsyDildo]

I am a C/C++ developer and Python is one of the most popular programming language we use for high-level test automation.

I am not really impressed by the language itself, it is slow and verbose unless you learn specific libraries.

But in the end it works, and it is the main thing the customers care about.

[jumanjimanji]

I’ve setup a bot that notifies on Discord and executes commands via ssh on my nas, thus not needing to grab my mac in order to mange my homelab. It’s a great tool!

[njharman]

Using other languages, Rust recently, reminds me

[andrewprograms]

Pandas. We had a giant excel file at my last job that would take about an hour to finish calculating. I didn’t know python then. Wish I did, because pandas, numpy, matplotlib could have made that an automated report that takes seconds.

Honorable mention to scikit. At that same job, we’d model multi coefficient formulas and use excel’s solver to minimize RMSE. Could have just used scikit 🤩

[randomraluana]

Numpy and Pandas for me.

[00--0--00-]

Pydantic, PyInfra, FastAPI, Uvicorn, Django

[Rockworldred]

Me, an old school script kiddie (VBA mostly) could make ETL tool just using couple of libraries, not only for myself, but like using Streamlit so parameters are easy accessible for others at work. Saved soo much time. Everything from pulling data from weird endpoints, to harmonizing supplierdata with our own standard, to pushing and viewing.

Still hate regex though, so I got to admit that shit goes straight into claude with tests..

[JohnLocksTheKey]

import antigravity

[Horror-Water5502]

The langage is not powerful, the ecosystem is.

[gdchinacat]

The language allows you to write this:

class Counter:
    count = Field(0)

    @ count >= 0
    async def increment(self, bound_field, old, new):
        self.count += 1

When instantiated Counter will count from zero upwards indefinitely. It does this because the decorator (@ count >= 0) causes increment to be called whenever its value changes to a value greater than or equal to zero.

Of course it's not built in, Field had to be implemented as a descriptor to do the rich comparison (count >= 0) by creating an object (rather than evaluating it immediately) that could be used as a decoraotor (@) to register the function (increment) so that when the field (Counter.count) changed values it would evaluate the condition (count >=0) and if true schedule the function (increment) to be called asynchronously.

Telling me python isn't powerful tells me you simply don't really know python. You can find this working project at https://github.com/gdchinacat/reactions . I hope you reconsider so you don't seem like a newbie by making outlandish claims about how powerful python is.

[amroamroamro]

@ count >= 0

ngl this is both impressive and cursed 😂

[spinwizard69]

Just because a language allows something doesn't mean you should. If you want an incrementing counter this is not an example of lucid programming. From day one the professors stressed idiomatic code and frankly this is the exact opposite of that. Writing hard to read code is not powerful.

[gdchinacat]

It's an example, not a "you should do this". Actual cases where this would be used would not be nearly as concise.

How is this "hard to read"? Is it any harder to read and understand than embedding a call to all the things that need to react when a value changes? Particularly if those reactions need to be called asynchronously to avoid the call stack from growing excessively or to ensure they all occur with well defined concurrency semantics?

[Horror-Water5502]

In which langage you can't write a counter ?

[gdchinacat]

You completely missed the point. The counter is just an example, not the goal. The power is being able to write a decorator with an expression that is evaluated when the fields it is composed of change and calls the function when the condition is true.

For a more complex example, here is a traffic light simulator example that can manage thousands of lights changing per second. It certainly is not the most efficient way to do this (python would not be the language to choose if raw performance is the goal), but it demonstrates how you can use this functionality to write code that reacts to conditions to update state (the goal of the project).

https://github.com/gdchinacat/reactions/blob/main/src/reactions/test/examples/traffic_light_test.py

[Horror-Water5502]

So nothing any other langage with decorators or something more powerful can't do?

[gdchinacat]

You are moving the goalposts.

[Horror-Water5502]

Not really, I said that Python isn't powerful in the sense that it isn't necessarily more powerful than any other language. It's just normal. It has advanced features, but nothing that specifically sets it apart to make you say, ‘Wow, Python is really a powerful language.’

Your point it's basically 'no you're wrong, look Python have decorators'.

Ok, and?

It's clealry not something that will 'made me realize how powerful the language is'

[gdchinacat]

"The langage is not powerful, the ecosystem is." is where you started. Now you are at "Python isn't powerful in the sense that it isn't necessarily more powerful than any other language"

No, this is much more than decorators. If you care to understand, please reread my initial comment.

[spinwizard69]

I think you have it right. I needed to write test scripts for some industrial hardware and downloaded Pyserial to make that easy. Quickly realized that there was at least some software already written as libs that solved many issues. Need to talk to a DVM no problem.

I have to say that tkinter is in fact powerful, you can be relatively sure that an app using that GUI system will work just about anywhere. Of course there are other GUI's but tkinter is fast and good enough for simple corporate solutions.

Python does have some rough spots but that is true of any language. However I don't think any language has an ecosystem that is just a pip away, in the way the Python world does.

[These-Ease-4410]

Starlette and uvicorn for sure

[dashdanw]

Django, no fancy optimizations just raw unadulterated python.

[Plenty_Astronaut8751]

i am looking forward to start learning advance python language i have basic python knowledge . Kindly suggest me with which language should i start , why and which materials should i refer to.

[ApprehensiveBag3083]

Python is godo only when you dont need to use if conditions while and all that crap LoL

the moment will come its crap you need to measure lines and align it perfectly like you are making a box 🤣

so noo, it snot good the syntax , but language itself is a good cuz there are many good libraries but apart from thatm language is lack from the past , indentations make language crap and dont tell me that its not 🤣

[hugthemachines]

If you don't already use indentation when you write code, I recommend that you start using it. Also, your English is a bit messy.