need advice on building core code for python and PHP

[digimotif]

All,
I'm currently working with a small development company on a PHP
application they already have.  There are several processing tasks
that could be scripted in Python and run in the background to modify a
database, instead of the way they have it now, which waits for a
webpage to return from processing.

There is also the possibility of building client gui applications that
work with the database as well, so I'm looking for a way I could
create a code base that enables us to use the same functions and
objects over and over again while building interfaces in Python, or
PHP, or whatever.

Is there a way I could code the base (core) code in Python and have
PHP call it?  I've really liked using SQLAlchemy and there are other
great things like Pylons I could integrate for various tasks, but I
first have to move some functionality out of PHP and into something
more "universal".  What would you recommend?

Any ideas are appreciated.

Brian

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Re: need advice on building core code for python and PHP

[digimotif]

>
> * simple and nice solution:
>   do not ever use php

I'd like not to use it at all, but there's already been quite a bit of
work done with it and I'm sure I won't be able to have it all removed
at one time.  I REALLY don't like debugging PHP especially after all
the stuff I've done with Python.  I find it much easier to test Python
code as I go and I end up with fewer bugs to fix later.  I'll work to
remove the need for PHP a little at a time.

Thanks for the tips, I'll look into it and I'm interested in any other
ideas out there.

Brian


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Re: need advice on building core code for python and PHP

[digimotif]

On May 24, 5:01 pm, Graham Dumpleton <[EMAIL PROTECTED]>
wrote:
> On May 25, 5:24 am, aspineux <[EMAIL PROTECTED]> wrote:
>
>
>
> > On 24 mai, 19:33, Szabolcs Nagy <[EMAIL PROTECTED]> wrote:
>
> > > > Is there a way I could code the base (core) code in Python and have
> > > > PHP call it?  I've really liked using SQLAlchemy and there are other
>
> > > * quick and dirty solution:
> > > in a shell:
> > >   $ python yourscript.py pipe_out
> > > in the php script:
> > >   fwrite(pipe_in, input_data);
> > >   results = fread(pipe_out, sizeof_results);
>
> > > * simple and nice solution:
> > >   do not ever use php
>
> > Write a CGI wrapper around your python script, and publish it using 
> > mod_python.
> > And make the appropriate http requests from PHP.
>
> You do not need mod_python to host CGI scripts written in Python, they
> are two separate things.
>
> Depending on the complexity of what you are doing, you might be better
> off writing a backend server in Python that incorporates an XML-RPC
> server. Your PHP script can then use XML-RPC client to communicate to
> the backend Python server to do the real work. Over time you could
> even transition your web pages to being done in Python instead. In
> doing this your back end Python server doesn't have to change, you
> just make XML-RPC calls from the Python code for the web pages in
> place of where you would be doing it with PHP initially. You also
> wouldn't be restricted to web based front ends, you could also use GUI
> based front end as well.
>
> Graham

This sounds more like the direction I should go.  Is XML-RPC the only
technology allowing this sort of setup?  If I understand correctly, it
would basically mean going to a three tiered application approach.
I'd have the database, the python xml-rpc server, and the gui/web
interfaces.  I'd also want to make sure I'm implementing technology
that will scale well.

Brian

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