[Zope] calling os.system using external method

[Dieter Maurer]

Mike Doanh Tran wrote at 2003-6-24 15:57 -0600:
 > I have an External method that uses os.system to execute 
 > a linux command on a local host.  I am trying to pass a file name
 > to the findDocs function (see below) to locate the location (path) of the 
 > wanted file and print it out on a dtml document.  Can someone please show me 
 > how to make this work?
 > 
 > Thanks in advanced for any suggestions.   
 > 
 > #Python script to find location/path of local file
 > import os
 > unixCommand = 'find /home/uploads/ -name %'
 > def findDocs(arg):
 >   os.system(unixCommand%arg)
 > 
 > DTML:
 > <dtml-call "externalMethodName(arg=fileName)">

Your "unixCommand" should read:

   unixCommand = 'find /home/uploads/ -name %s'
				             ^

Zope/Pythons error messages (and tracebacks) are quite good.
Careful reading usually points out the problem cause.
In your case, I expect you got the message "not all arguments converted"
which means: "%" got arguments for which there were not format specifies.


Dieter