javascript execution from Python script
Gerhard Häring
gerhard.haering at gmx.de
Mon Aug 26 13:32:28 EDT 2002
* Justin Guerin <jguerin at cso.atmel.com> [2002-08-26 11:19 -0600]:
> Hello everyone,
> Does anyone know if there is a way to execute javascript from within a Python
> script?
I'm pretty sure there is none. Your best bet is to expose an existing
JavaScript implementation to Python.
> I'm trying to write a script to browse a web site that makes use of
> javascript rather liberally.
> I checked http://www.python.org/doc/essays/comparisons.html, where Guido
> wrote that "a Python implementation written in Java is under development,
> which allows calling Python code from Java and vice versa." If he's
> referring to Jython, then maybe I need to check the Jython web site more
> carefully, but from what I saw, it allows you to run Python code from within
> Java, but not Java code from within Python.
Jython can call to Java code, too: they're both executed in the same
Virtual Machine.
> And actually, since I'm more interested in javascript, I'm not sure it
> matters, anyway.
It probably doesn't. The only connection is that many browsers have
techniques to script Java applets via JavaScript. Sometimes, it also
works the other way round, I hear. So you could _perhaps_ write a Jython
applet that has access to the JavaScript engine in the same browser. If
I were a project manager, I'd say RISK FACTOR: HIGH.
> (I'm afraid I'm quite unfamiliar with Java and javascript.)
"Java is not JavaScript", that's even the subtitle of the
de.comp.lang.java FAQ ;-) All they share are the first four letters.
Gerhard
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reduce(lambda x,y:x+y,map(lambda x:chr(ord(x)^42),tuple('zS^BED\nX_FOY\x0b')))
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