Function meta_frame_constructor

dask/dataframe/utils.py:720–740

Return a serial DataFrame constructor Parameters ---------- like : Any series-like, Index-like or dataframe-like object.

(like)

def meta_frame_constructor(like):
    """Return a serial DataFrame constructor

    Parameters
    ----------
    like :
        Any series-like, Index-like or dataframe-like object.
    """
    if is_dask_collection(like):
        try:
            like = like._meta
        except AttributeError:
            raise TypeError(f"{type(like)} not supported by meta_frame_constructor")
    if is_dataframe_like(like):
        return like._constructor
    elif is_series_like(like):
        return like._constructor_expanddim
    elif is_index_like(like):
        return like.to_frame()._constructor
    else:
        raise TypeError(f"{type(like)} not supported by meta_frame_constructor")


def meta_series_constructor(like):