= !SortedDict = One of Django's custom data structure classes[[br]] source:django/trunk/django/utils/datastructures.py A dictionary that keeps its keys in the order in which they're inserted. Supports the following extra methods: `insert(index, key, value)`[[br]] Inserts the key, value pair before the item with the given index." `value_for_index(index)`[[br]] Returns the value of the item at the given zero-based index.