[Python] Generate multiple disjunct samples from a dataframe

I am doing some statistic of a very large dataframe that takes sums of multiple random samples. I would like the samples to be disjuct (no number should be present in two different samples).

Minimal example that might use some numbers multiple times:

import polars as pl
import numpy as np

df = pl.DataFrame(
{"a": np.random.random(1000)}
)

N_samples = 50
N_logs = 20
sums = [
df.sample(N_logs).select(pl.col("a").sum()).item()
for _ in range(N_samples)
]


How to avoid multiple usage of same numbers?

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