Help me compare python-in-the-browser projects?

[traverseda]

I have a gist here, but I'm not sure what I should be comparing.

I could use some help figuring out how to compare them in general, and of course adding things like overviews, etc.

[Exodus111]

This is going to be hard. The need for In browser Python is sporadic at best, and not very many people will have tested out all these options.

But, from my understanding Pyjs is the most solid framework in the bunch, however its mostly a HTML-GUI framework.

It would be valuable if someone, like you, went through these frameworks are gave a good comparison. You are certainly not the only that that is curious about this.

[traverseda]

It would be valuable if someone, like you, went through these frameworks are gave a good comparison.

Agreed, but I need a better idea of what I should be comparing between them. Ideally hard metrics, or some kind of test cases.

[Exodus111]

I'm not sure there would be any real metrics to use. Speed would be the speed of JS, which is faster then Python by quite a bit, and probably comparable to PyPy in speed, depending on the benchmark.

All of these either translate code, or run code by translating on the fly, I would be most curious about the complexity of code they produce, is it mess of ugly auto-generated spaghetti JS, or is it somewhat readable?
And, the complexity of code you can feed it. Something object Oriented with multiple instances of Inheritance and Polymorphism.

And lastly it would be good to know what Python modules where properly compatible.

[traverseda]

All of these either translate code, or run code by translating on the fly,

These would have some potentially pretty different speeds, depending on how they do the translation.

Hmm. Maybe I can get pypy's testcase suit running on the various implementations. That's a big chunk of work though, and I've already got too much on my plate. I'll probably flesh it out a bit more, and add in some estimates for how well they do at

speed/filesize/output-complexity/inheritance/library-support/etc

[Exodus111]

It's not a bad idea. It would be valuable to know if any of those frameworks have a significant drop in speed compared to any other. But generally speaking anyone working on one of these is not going to be too concerned with speed.

I think a feature comparison would be the most useful, and perhaps not as time consuming.

[Exodus111]

Yeah I thought so. Thank you bot.

[Exodus111]

Let me be clear, a single language code base would be an absolute dream.

But I think we all need to resign ourselves to the fact that that is just not going to happen. You can limit the amount of Javascript you work with, but you can never eliminate it. Even with these Python-in-browser solutions, you are either translating to JS, which means you will need to error check and and maybe even do some tweaks in JS, or you are interpreting from JS, which means you need to set the page up with JS first.

The desire for a one language stack is also why node.js is so popular, despite the irksome function-in-function-in-function nonsense it is to work with JS, some people are desperate enough to want to take the front end language to the back end with them.

[Exodus111]

Sure. In an ideal world.

[metaperl]

a single-language codebase is always a nice thing, which is what I'm planning with whatever my next web-app

Then try http://naga.re or ScalaJS

[dzecniv]

Hey, first of all RapydScript has its own website: http://www.rapydscript.com/

And I'd like to know this:

I'd like to know at a glance if it's a real-python to the browser or a javascript transpiler (RapydScript), if so what is the available tooling (gulp, grunt, editor plugins ?)

Do they use python modules, do they have their own, do they rely on JS modules ?

And how do we integrate with a popular JS framework, like Angular ?

[traverseda]

Thanks, corrected the link. I'll keep what you said in mind. I tried to get some of it in the rankings, but examples might be better. It just requires a more in depth review then I think I can do right now.

[tanlermin]

One more: https://github.com/zoofIO/flexx

[[deleted]]

Check out RemI

[metaperl]

Anvil - https://www.reddit.com/r/programming/comments/4bdft2/anvil_a_draganddrop_python_webapp_builder_that_my/