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startupdiscuss
I might be missing something, but can you show an example of calling the API from javascript?

You seem to be writing it in python and then calling it from within python in the example.

tbodt
context.eval runs JavaScript, which in the example is calling the Python API. expose adds an object into the global JavaScript space.
d33
Nice! I hadn't tested it yet, but I remember trying to run V8 in Python and it was a real mess - I think that even building it was problematic. I might use this project one day. Did you compare your bindings to alternatives?
tbodt
No, because there really aren't any alternatives... There is PyV8, which last I checked does not compile on recent versions of V8
unusximmortalis
If I get it correctly this is V8Py meaning it allows javascript (V8) to call Python scripts, not the other way around.

"Write Python APIs, then call them from JavaScript using the V8 engine"

Twirrim
That's what I took that phrase to mean, but if you look at the example in the read me, it appears to be the other way around. Writing python, defining a method, then wrapping that method in a V8 context and running it from within python.
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jdc0589
there are a LOT of Sublime Text plugins that depend on this.

EDIT: nevermind. i'm dyslexic

tbodt
are you thinking of pyv8?
gkya
Can anybody tell what's going on with the v8py/kappa.{cpp,h} files?
RandomInteger4
"// Meme header file. Every project should have one of these. Kappa Kappa Kappa"
jszymborski
I'm a fan of humour in comments, easter-eggs, etc... but for no good reason, this bothers me.
nerdponx
It's forced humor, and a misapplied un-funny version of mildly funny nerd humor at that. It gives me the same kind of chills that I get from people who wear "I <3 bacon" type t-shirts.
matthewaveryusa
What kind of t-shirt would you have a positive response to?
dguaraglia
In Spanish we have an expression for the way you feel: "vergüenza ajena", which loosely translates to "feeling the embarrassment someone else should feel for their actions." It's pretty nifty, if not very catchy :P
roywiggins
Apparently it's "fremdscham" in German.
dguaraglia
See, that's catchier! Now we are talking.
nerdponx
I like this. There's a lesser-known phrase in English with a similar meaning, "embarrassment transfer".
tophattom
In Finnish that is called "myötähäpeä"
gkya
What's the meme though, honestly it doesn't look like anything but random cpp abuse to me
nerdponx
"Kappa" is from the game streaming site Twitch. Unless it means something else entirely and I'm out of the loop.
grimgrin
I don't feel good about that feeling. Often when I say something makes me cringe, I later feel judgmental about it. Because I am being judgmental.
sargun
I also feel like Kappa is related to the Pepe / supremacist folks.
detaro
It comes from gaming circles, more specifically Twitch.
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andersriutta
This allows for calling synchronous JS functions from Python but not async JS functions, right? PyExecJS [0] also doesn't work with async JS, but Js2Py [1] might.

[0] https://github.com/doloopwhile/PyExecJS/issues/20 [1] https://github.com/PiotrDabkowski/Js2Py/blob/05e77f0d4ffe91e...

elmigranto
Wouldn't it be more performant and less awkward to compile python to JS? Or is it for importing JS code into your python program? Well, why don't compile JS to Python then?
marmaduke
If JS code expects to be JITed then transpiled in Python would be quite slow. Transpiling Python to JS is difficult and loses access to various ecosystems e.g. scientific Python.

Having the two runtimes coupled seems to be the ideal way to run both languages in the same process.

droidist2
Interesting. Could this be used to use SciPy stuff from JavaScript?
binora
Silly question. Can I use this to interact with a machine learning model written in python from javascript on react native ? It'd be great if someone could point out the feasibility/limitations
tbodt
No, it's for running javascript from a python program and allowing that javascript to call python code.