list is subset of another code example

Example 1: list is subset of another list

one = [1, 2, 3]
two = [9, 8, 5, 3, 2, 1]

all(x in two for x in one)

Example 2: how to check if a list is a subset of another list

if(all(x in test_list for x in sub_list)): 
  flag = True