Re: [Jython-users] Calling Java from Python

[Niko S. <nik...@us...>]

james p wrote:
> We have a bunch of Python (cgi) scripts producing html
> behind an Apache web
> server.  We also have a set of Java libraries that I
> want to access from
> these Python scripts, but I haven't been able to
> figure out how to do this.
> I have downloaded and tried out Jython, but it takes
> 5-6 seconds just to run
> a one-line 'print "hi"' script, and this is, of
> course, not acceptable for a
> web server.

Kevin Butler wrote:
> 5-6 seconds seems high - unless you're running on slow hardware
> or jython can't access its package cache, it should be more
> like 2.5 seconds.
>
> Which is probably still not acceptable.  :-)
>
> Your best bet if you want to use Java in a web server environment
> is to have a persistent Java process, so you don't pay the JVM
> startup
> time with every hit.  If you really need to access
> Java libraries in servicing web requests, you should consider
> converting
> the relevant CGI scripts to servlets (which you can code in
> Jython).

If you are using Jython in version >= 2.1 alpha, there comes servlet 
support for free (org.python.util.PyServlet), you find a detailed
description how to use this environment from within your servlet 
container (for example Tomcat) at:

  http://jywiki.sourceforge.net/index.php?JythonServlet

Hope this helps,
Niko