polars.DataFrame.n_chunks

DataFrame.n_chunks(
    strategy: Literal['first',
    'all'] = 'first',
) → int | list[int]

Get number of chunks used by the ChunkedArrays of this DataFrame.

Parameters:

strategy{‘first’, ‘all’}

Return the number of chunks of the ‘first’ column, or ‘all’ columns in this DataFrame.

Examples

>>> df = pl.DataFrame(
...     {
...         "a": [1, 2, 3, 4],
...         "b": [0.5, 4, 10, 13],
...         "c": [True, True, False, True],
...     }
... )
>>> df.n_chunks()
1
>>> df.n_chunks(strategy="all")
[1, 1, 1]