[Zope] python modules problem

[Cedric Bellegarde]

I'm using zope and I want in a python script load an image in current 
folder:

-First i've found the method with the os.open fonction,i've created a 
directory in /usr/lib/zope/lib/python named PythonScriptModules with 
inside a file named __init__.py:
       from Products.PythonScripts.Utility import allow_module
       allow_module(os)
   I use the 
container.manage_addProduct['OFSP'].manage_addImage(id+'_img',file,'') 
function
   but,when my python script call file = 
os.open(filename).read(),mozilla tell me my password and loop on 
authentification
   
-Is there an other method to create an image object without using the 
os.open function????