pandas.Series.list.len

Series.list.len()[source]

Return the length of each list in the Series.

Returns:

pandas.Series

The length of each list.

Examples

>>> import pyarrow as pa
>>> s = pd.Series(
...     [
...         [1, 2, 3],
...         [3],
...     ],
...     dtype=pd.ArrowDtype(pa.list_(
...         pa.int64()
...     ))
... )
>>> s.list.len()
0    3
1    1
dtype: int32[pyarrow]