Earlier quoted context omitted.
Or this: import js js.globals.console.log('hi!')
I'm loving this, my head is reeling with the glint of possibilities import js js.globals.console.log('hi!'*5)
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PyPy.js: A fast, compliant Python implementation for the web
41–50 of 144 posts
Re: PyPy.js: A fast, compliant Python implementation for the web
#42Is there a Python 3 version of this?
Re: PyPy.js: A fast, compliant Python implementation for the web
#43Earlier quoted context omitted.
have you looked into CoffeeScript? it's slightly more pythonic than JavaScript.
There's raypidscript also: http://www.rapydscript.com/ which is a python like JS precompiler ( https://news.ycombinator.com/item?id=9385596 ) I haven't had the time to try it yet, but maybe it'll suit your needs ;)
Right of the bat their example puts me off. I mean.. come on.
self.$popup = $('#' + containerId).addClass('pop-up').mouseout(def():
self.hide()
)Re: PyPy.js: A fast, compliant Python implementation for the web
#44Earlier quoted context omitted.
> python can't be directly included in Firefox or other browsers So Python is a bad candidate, but there are better candidates out there. For example, jsofocaml (using OCaml in the browser) looks quite promising. In the end, we need a lightweight yet properly defined and highlevel language, and the ML languages as well as the LISP languages are great candidates for that.
Purescript is a Haskell-like language that is designed to output to javascript. It looks quite nice and has seen a lot of attention lately. It's even in GSoC.
Also, ClojureScript.
Re: PyPy.js: A fast, compliant Python implementation for the web
#45Sample code to execute some Javascript code inside PyPy.js. I couldn't find any examples. import js js.eval("console.log(\"hi!\")")
It's a bit messy, but:
js.eval('var div = document.createElement("div"); div.style.width = "100px"; div.style.height = "100px"; div.style.background = "red"; div.style.color = "white"; div.innerHTML = "Hello"; document.body.appendChild(div);');
--
Directly modifying document.body.innerHTML in any way seems to hang it. Both:
js.eval('document.body.innerHTML += "";');
js.globals.document.body.innerHTML += ""
(ChromeOS v43 beta)
Re: PyPy.js: A fast, compliant Python implementation for the web
#46Earlier quoted context omitted.
Or this: import js js.globals.console.log('hi!')
I'm loving this, my head is reeling with the glint of possibilities import js js.globals.console.log('hi!'*5)
Seems to be some issues with the interop still, eg:
import js
>>> "globals" in dir(js)
True
>>> "console" in dir(js.globals)
False
>>> js
>>> js.globals.console
Not really an issue for running business logic in the browser, but if this was a full python repl-interface (with ipython support!) to the whole browser DOM -- that'd be a fantastic tool.
Re: PyPy.js: A fast, compliant Python implementation for the web
#47Sample code to execute some Javascript code inside PyPy.js. I couldn't find any examples. import js js.eval("console.log(\"hi!\")")
Just playing around:
import js
c = js.globals.document.createElement("canvas")
js.globals.document.body.appendChild(c)
ctx = c.getContext("2d")
ctx.fillRect(10, 10, 10, 10)
import js
import math
import time
c = js.globals.document.createElement("canvas")
js.globals.document.body.appendChild(c)
ctx = c.getContext("2d")
def render():
ctx.clearRect(0, 0, c.width, c.height)
t = time.time()
ctx.fillRect(20+math.sin(t*10)*10, 20+math.cos(t*10)*10, 10, 10)
js.globals.window.setInterval(render, 20)
Re: PyPy.js: A fast, compliant Python implementation for the web
#48Sample code to execute some Javascript code inside PyPy.js. I couldn't find any examples. import js js.eval("console.log(\"hi!\")")
It's a bit messy, but: js.eval('var div = document.createElement("div"); div.style.width = "100px"; div.style.height = "100px"; div.style.background = "red"; div.style.color = "white"; div.innerHTML = "Hello"; document.body.appendChild(div);'); manages to append a div. -- Directly modifying document.body.innerHTML in any way seems to hang it. Both: js.eval('document.body.innerHTML += " ";'); js.globals.document.body.…
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Re: PyPy.js: A fast, compliant Python implementation for the web
#49Sadly, "import antigravity" doesn't work
I was more disappointed (but not surprised!) that "import pip" didn't work.
If it did (and it has big ramifications for how much of "python" (for some definition of "python" that includes most of the standard library) works. Eg sockets, interacting with some sort of "local" "file-system" etc) one could (this is handy if working on windows, and running python via cmd-r python.exe):
import pip
# pip.main expects a list of arguments, hence .split()
pip.main("install ipython".split())
# Only needed first
# time, as it installs ipython under site-packages.
# Only works if the user has write access, obviously
import IPython
IPython.start_ipython()Re: PyPy.js: A fast, compliant Python implementation for the web
#50Sample code to execute some Javascript code inside PyPy.js. I couldn't find any examples. import js js.eval("console.log(\"hi!\")")
It would be good if they could support a common api with brython, which has "import web" and some other bits...
I guess these things will take a while to shake out, but I'd imagine a python-in-browser-api PEP at some point.