polars.Series.list.contains#

Series.list.contains(
item: float | str | bool | int | date | datetime | time | IntoExprColumn,
) → Series[source]#

Check if sublists contain the given item.

Parameters:
item

Item that will be checked for membership

Returns:
Series

Series of data type Boolean.

Examples

>>> s = pl.Series("a", [[3, 2, 1], [], [1, 2]])
>>> s.list.contains(1)
shape: (3,)
Series: 'a' [bool]
[
    true
    false
    true
]