polars.Series.list.unique#

Series.list.unique(*, maintain_order: bool = False) → Series[source]#

Get the unique/distinct values in the list.

Parameters:
maintain_order

Maintain order of data. This requires more work.

Examples

>>> s = pl.Series("a", [[1, 1, 2], [2, 3, 3]])
>>> s.list.unique()
shape: (2,)
Series: 'a' [list[i64]]
[
    [1, 2]
    [2, 3]
]