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Execute arbitrary JavaScript code from Python. Allows you to reference
arbitrary Python objects and functions in the JavaScript VM
Requirements
============
Python Development Files
------------------------
Mac OS X:
If you installed Python via port then the headers should already be installed.
I have not heard reports of problems from people using the bundled
interpreters.
Debian/Ubuntu:
$ sudo apt-get install pythonX.X-dev
Where X.X is the version of Python you are using. I have not tested
python-spidermonkey on Py3K so it may be horribly broken there.
Netscape Portable Runtime (nspr)
--------------------------------
The nspr library is required for building the Spidermonkey sources. You should
be able to grab it from your package manager of choice with something like the
following:
Mac OS X:
$ sudo port install nspr
Debian/Ubuntu:
$ sudo apt-get install libnspr4-dev
Alternatively you can build from [source][nspr]. If you choose this route make
sure that the nspr-config command is on your $PATH when running the install
commands below.
Installation
============
$ git clone git://github.com/davisp/python-spidermonkey.git
$ cd python-spidermonkey
$ python setup.py build
$ python setup.py test
$ sudo python setup.py install
*OR*
$ sudo python setup.py develop
Having Issues?
==============
Add issues to the Lighthouse project [here][lh].
Examples
========
Basics
------
>>> import spidermonkey
>>> rt = spidermonkey.Runtime()
>>> cx = rt.new_context()
>>> cx.execute("var x = 3; x *= 4; x;")
12
>>> class Orange(object):
... def is_ripe(self,arg):
... return "ripe %s" % arg
...
>>> fruit = Orange()
>>> cx.add_global("apple", fruit)
>>> cx.execute('"Show me the " + apple.is_ripe("raisin");')
Show me the ripe raisin
Playing with Classes
--------------------
>>> import spidermonkey
>>> class Monkey(object):
... def __init__(self):
... self.baz = "blammo"
... def wrench(self, arg):
... return "%s now wrenched" % arg
...
>>> rt = spidermonkey.Runtime()
>>> cx = rt.new_context()
>>> cx.add_global(Monkey)
>>> monkey = cx.execute('var x = new Monkey(); x.baz = "schmammo"; x;')
>>> monkey.baz
'schmammo'
>>> monkey.__class__.__name__
'Monkey'
JavaScript Functions
--------------------
>>> import spidermonkey
>>> rt = spidermonkey.Runtime()
>>> cx = rt.new_context()
>>> func = cx.execute('function(val) {return "whoosh: " + val;}')
>>> func("zipper!");
'whoosh: zipper!'
Previous Authors
================
* John J. Lee
* Atul Varma
[lh]: http://davisp.lighthouseapp.com/projects/26898-python-spidermonkey/overview
[nspr]: ftp://ftp.mozilla.org/pub/mozilla.org/nspr/releases
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