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RustPython

rustpython.github.io

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Re: RustPython

#53

Post by nicce »

Twixes wrote: post #44

That's cool, but now for REAL bare-metal performance someone should rewrite Python in an even lower-level language. That's right, Python written in C is gonna be hella fast! Oh, wait…

Rust can be even faster that C on some cases, so not self-explanatory.

Rust compiler can sometimes make better performance optimizations because there are more guarantees that code works as it is supposed to.

You can bypass these with C of course, but you need more manual (and less secure) operations.

Re: RustPython

#54

Post by SkiFire13 »

gary_0 wrote: post #17

Does it allow sandboxing, or is Lua still the only good option for that? There are so many cases where you'd rather not give extension scripts unlimited access to the OS and file system, you'd think this option would be more common...

Note that Lua is not sandboxed by default. You need to thinker a bit with it or use Luau to actually make it sandboxed.

Re: RustPython

#55

Post by syrusakbary »

Happy to see RustPython making awesome progress!

Note: I just realized that they mention wapm in their homepage. We phased out the WAPM CLI in favor of Wasmer (https://wasmer.io), so you can simply run in your shell:

  wasmer run rustpython
Or, if you want to try it using the Wasmer JS SDK:

  import { Wasmer } from "@wasmer/sdk";

  let rustpython = Wasmer.fromRegistry("rustpython");
  let instance = await rustpython.entrypoint.run({
    args: "-c \"print(1)\""
  });
  let output = await instance.wait();
Will send a PR soon it can be updated!

Re: RustPython

#56

Post by cultofmetatron »

mavamaarten wrote: post #36
avgcorrection wrote: post #7

Earlier quoted context omitted.

Why does it make you wince?

From a non-python dev perspective: I always struggle with dependencies and versions. I have a script in front of me that I want to run, and am often just frustratingly brute-forcing commands to make it work. Do I: python? python3? pip install? pip3 install? python pip install? python pip3 install? python3 pip install? python3 pip3 install? And then everyone mentions "oh just use venv" or "conda" or docker or... It ju…

I feel you. python itself has its warts but its mostly minor. The dependancy hell though.. god damn it confuses me every time. I don't understand why they can't get it together with one consistent dependency system with good ergonomics. ruby does it with gem. elixir handles things reasonably well with mix. rust does it REALLY well with cargo. hell even ocaml has opam.

but python? it between conda, pip, pip3, virtualenv and who knows what else. its hard to make something that I knwo will just work on everything.

Re: RustPython

#57

Post by pletnes »

brnt wrote: post #4
martijnarts wrote: post #3

I think it's really cool that Python has a healthy third-party interpreter community. PyPy, IronPython, Jython, and now RustPython expand Python's accessibility. It's very cool to see how many people are working on this, and I wonder what kind of problems with CPython this has exposed also.

I wonder if anyone actually uses those third-party interpreters for anything serious. I've never come across anyone that did.

Pypy is nice if you want more performance. From my experience it seems underused. Never seen jython and ironpython used - yet.

Re: RustPython

#58

Post by postepowanieadm »

avgcorrection wrote: post #7
blurbleblurble wrote: post #2

Pretty cool, especially the potential for using python as a scripting language embedded in rust programs. That said, python makes me wince.

Why does it make you wince?

Installing python software is hard. Golang is much easier for and end user.

Re: RustPython

#59

Post by repelsteeltje »

sneed_chucker wrote: post #37
repelsteeltje wrote: post #9

Earlier quoted context omitted.

Working on a significant C++ code base (shipped as deb, rpm and windows binaries) and wanting to allow some means to customize busyness logic we decided to integrate Python hooks, a couple of years ago. In hindsight, I'd call that decision a mixed blessing. The code level integration (pybind11) was nice and easy, the issues came later. We found operational problems (multithreading), performance (in particular initial…

Curious why your team didn't opt for Lua instead? It's the more typical choice for the use case you're describing.

Our pre-sales engineers, devops people were familiar with Python. It's also a popular language outside our company, though I'm sure some of our customers use Lua (e.g. in nginx tool).

Lua being designed specifically for embedding makes it a good choice.

I wonder, though whether we might have ended up with similar fights maintaining LuaRocks dependencies in rpm/apt ecosystem on various platforms as soon as those customizations start pulling in dependencies like XML parsers, crypto, etc.

Do you have thoughts on that? (Note, we target linux, but sell proprietary closed source binaries only, except for the customizations)

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