[Zope] how add properties via Python script? /kv

[Kai Vermehr]

I'm trying to add the property "product" to all the images inside the  
"image_folder" with this line in Python:

container.image_folder.objectValues(['Image']).manage_addProperty(produc 
t, name, string)

but it does not work ... why? How should it be done?

thanks! -- 'K:?