在作為子集的集合列表中查找集合並選擇它們

Question

我只想從作為另一個集合的子集的集合列表中選擇那些集合，因此基本上是：

sets = [{1, 2, 3}, {6, 7, 8}]
s = {1, 2, 3, 4, 5, 6, 7}
list(compress(sets, [sub <= s for sub in sets]))

這有效，但首先評估列表理解然后使用壓縮感覺是錯誤的。 有沒有辦法直接索引集合，比如：

sets[[sub <= s for sub in sets]] ### This does not work!

Answer 1

嘗試這個：

[i for i in sets if all(j in s for j in i)]

測試：

In [226]: sets = [{1, 2, 3}, {6, 7, 8}, {1,2}, {3}, {7,1}, {7,8}, {8}]
In [227]: s = {1, 2, 3, 4, 5, 6, 7}

In [228]: [i for i in sets if all(j in s for j in i)]
Out[228]: [{1, 2, 3}, {1, 2}, {3}, {1, 7}]