Function make_df

dask/dataframe/tests/test_dataframe.py:4460–4461

(n)

def test_sample_empty_partitions():
    @dask.delayed
    def make_df(n):
        return pd.DataFrame(np.zeros((n, 4)), columns=list("abcd"))

    ddf = dd.from_delayed([make_df(0), make_df(100), make_df(0)])
    ddf2 = ddf.sample(frac=0.2)