Method empty

dask/dataframe/dask_expr/_collection.py:2704–2711

(self)

    @property
    def empty(self):
        # __getattr__ will be called after we raise this, so we'll raise it again from there
        raise AttributeNotImplementedError(
            "Checking whether a Dask DataFrame has any rows may be expensive. "
            "However, checking the number of columns is fast. "
            "Depending on which of these results you need, use either "
            "`len(df.index) == 0` or `len(df.columns) == 0`"
        )

    @derived_from(pd.DataFrame)
    def items(self):