UniqueTuple¶

class UniqueTuple(*args: Sequence[T])¶

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)

count(value)¶

Return number of occurrences of value.