[Zope] More from error messages?

[Donald Holten]

	Is there any way to get more information from an error message?  I have 
the following message:
	Error Type: AttributeError
          Error Value: 'string' object has no attribute 'filename'
          
          But I don't know what variable it is talking about.  If you pass a 
variable into a python script from Zope, and the variable is a file passed from 
an "attach" html tag, will it still be a file when python gets it?  Is it all 
just one big string?  Any help here would be great...   Thanks!
          Donner