[Zope] Generating lists of dicionaries from properties

Hello, I'm looking for a way to generate lists of dicionaries from string properties. As this is for a public website eval doesn't seem to be the best choice. For an example, I want to get this list of dictionaries: prop = ( { "id":"first_entry", "title":"first_title" }, { "id":"second_entry", "title":"second_title" }, ) It should be possible, that this information is entered in a human readable way as a string property. Any suggestions? Thanks Andreas