Best way to integrate Python and JavaScript

Question

Is it possible to integrate Python and JavaScript   For example  imagine you wanted to be able to define classes in JavaScript and use them from Python  or vice versa    If so  what s the best way   I m interested not only if this is possible but if anyone has done it within a  serious  project or product   I m guessing it would be possible using Jython and Rhino  for one example  but I m curious whether or not anyone s ever actually done this  and if there are solutions for other platforms  especially CPython

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There s a bridge based on JavaScriptCore  from WebKit   but it s pretty incomplete  http   code google com p pyjscore

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You could also use XPCOM  say in XUL based apps like Firefox  Thunderbird or Komodo

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If your just interested in sharing complex data types between javascript and python  check out jsonpickle  It wraps the standard Python JSON libraries  but has some smarts in serializing and deserializing Python classes and other data types     Quite a few Google App Engine projects have used this library   Joose and FirePython both incorporate jsonpickle

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there are two projects that allow an  obvious  transition between python objects and javascript objects  with  obvious  translations from int or float to Number and str or unicode to String  PyV8 and  as one writer has already mentioned  python-spidermonkey   there are actually two implementations of pyv8 - the original experiment was by sebastien louisel  and the second one  in active development  is by flier liu   my interest in these projects has been to link them to pyjamas  a python-to-javascript compiler  to create a JIT python accelerator   so there is plenty out there - it just depends what you want to do

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This question is not exactly young  but there have come up some alternatives     Skulpt is an entirely in-browser implementation of Python   Brython -  A Python 3 implementation for client-side web programming  RapydScript -  Python-like JavaScript without the extra overhead or quirks  Transcrypt -  Lean and mean Python 3 6 to JavaScript compiler with multiple inheritance  sourcemaps  static type checking and selective operator overloading    also on Github

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PyExecJS is able to use each of PyV8  Node  JavaScriptCore  SpiderMonkey  JScript    gt  gt  gt  import execjs  gt  gt  gt  execjs eval   red yellow blue  split          red    yellow    blue    gt  gt  gt  execjs get   name  Node js  V8

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You might also want to check out the PyPy project - they have a Python to  anything  compiler  including Python to Javascript  C  and llvm   This allows you to write your code in Python and then compile it into Javascript as you desire   http   codespeak net pypy  Also  check out the informative blog   http   morepypy blogspot com   Unfortunately though  you can t convert Javascript to Python this way   It seems to work really well overall  they used to have a Javascript  made from compiled Python  version of the Bub n Bros game online  though the server has been down for a while    http   bub-n-bros sourceforge net

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I was playing with Pyjon some time ago and seems manage to write Javascript s eval directly in Python and ran simple programs    Although it is not complete implementation of JS and rather an experiment  Get it here   http   code google com p pyjon

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Here s something  a Python wrapper around the SeaMonkey Javascript interpreter    http   pypi python org pypi python-spidermonkey

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Use Js2Py to translate JavaScript to Python  this is the only tool available

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Many of these projects mentioned above are dead or dying  lacking activity and interest from author side  Interesting to follow how this area develops   For the record  in era of plugin based implementations  KDE camp had an attempt to solve this with plugin and non-language specific way and created the Kross https   en wikipedia org wiki Kross  software  - in my understanding it never took off even inside the community itself   During this chicken and egg -problem time  javascript-based implementions are definately way to go  Maybe in the future we seee pure and clean  full Python support natively in browsers

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How about pyjs   From the above website      pyjs is a Rich Internet Application  RIA  Development Platform for both Web and Desktop  With pyjs you can write your JavaScript-powered web applications entirely in Python

[javascript] Best way to integrate Python and JavaScript?

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