Triggering a Python process

[Chris Liechti]

"DeepBleu" <DeepBleu at DeepBleu.org> wrote in
news:u3u7qegthndc3 at corp.supernews.com: 
> The Python project I am working on so far does the following:
> 1.  Allows users via a browser to upload a file to a Solaris 8 machine
> using Python CGI.  The script inspects the file uploaded to determine
> if it is zipped or not.  If zipped, it unzips it into its components. 
> Then it performss some rules on the text in the file,  Then it FTP's it
> into ANOTHER Solaris 8 machine.  This is all in one script.
> 2.  The files received on the second machine are then sent using a
> second Python script into an Oracle database processing facility.
> 
> The second Python script is run every couple of hours to check for any
> files that were FTP'd.

why use FTP? if its only a python<->python conversation you could use pyro
http://pyro.sourceforge.net/ the you can simply call method on an object on 
the second machine with the data.

or handcraft you own protocol over TCP and implment it in both python 
scripts.

> So, this is my question:
> Are there any 'fancy' methods by which the second Python script on the
> second machine is automatically triggered when the file is FTP'd
> successfully from the first macine to the second machine?

- maybe your FTP server has some scripts that can be executed on 
login/logout? then you could use signals.

- open a socket on second machine ant wait for a command

- you could even login to the remote machine (via telnetlib or better ssh 
and os.popen) and execute such an update tool

> I ask out of curiousity and trying to see if it is possible to
> streamline the whole project to flow in one step across different
> macihines. By the way, this is my first project on a Unix.
> Any hints are welcome.
> DeepBleu
> 
> 
> 



-- 
Chris <cliechti at gmx.net>