from reconfigure.items.bound import BoundData class PasswdData (BoundData): pass class UserData (BoundData): fields = ['name', 'password', 'uid', 'gid', 'comment', 'home', 'shell'] PasswdData.bind_collection('users', item_class=UserData) for i in range(0, len(UserData.fields)): path = lambda i: lambda x: x.children[i] UserData.bind_property('value', UserData.fields[i], path=path(i))