Ordered Set Recipe¶
- class sortedcollections.OrderedSet(iterable=())¶
Like OrderedDict, OrderedSet maintains the insertion order of elements.
For example:
>>> ordered_set = OrderedSet('abcde') >>> list(ordered_set) == list('abcde') True >>> ordered_set = OrderedSet('edcba') >>> list(ordered_set) == list('edcba') True
OrderedSet also implements the collections.Sequence interface.
- __contains__(key)¶
key in ordered_set
- __getitem__(index)¶
ordered_set[index]
-> element; lookup element at index.
- __init__(iterable=())¶
- __iter__()¶
iter(ordered_set)
- __len__()¶
len(ordered_set)
- __repr__()¶
Text representation of set.
- __reversed__()¶
reversed(ordered_set)
- __str__()¶
Text representation of set.
- __weakref__¶
list of weak references to the object (if defined)
- add(value)¶
Add element, value, to set.
- count(key)¶
key in ordered_set
- discard(value)¶
Remove element, value, from set if it is a member.
- index(value)¶
Return index of value.