collectionish.UniqueTuple¶

class collectionish.UniqueTuple¶

Bases: tuple, typing.Generic

An immutable sequence of unique and hashable items ordered by first appearance.

like tuple and frozenset, UniqueTuple is immutable.
like frozenset, UniqueTuple accepts only hashable values.
unlike frozenset, UniqueTuple cares about insertion order. It orders by will be ordered by first appearance.
finally UniqueTuple may be initilized with an unpacked iterable.

Example

>>> from collectionish import UniqueTuple
>>>
>>> UniqueTuple(3, 2, 3, 1)
UniqueTuple(3, 2, 1)

Methods:

count(value) → int¶

Return number of occurrences of value.

index()¶

Return first index of value.

Raises ValueError if the value is not present.

count(value) → int: Return number of occurrences of value.

index()

Return first index of value.

Raises ValueError if the value is not present.