[Zope] python modules problem

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????