I don't know which of the decimal creation codes is wrong.

The error above occurred, and the code below is the one I wrote.

"We want to find the number of prime numbers when we add three of the given numbers. When an array nums containing numbers is given as a parameter, complete the solution function to return the number of decimal cases by selecting three different numbers from the nums

I was writing a code related to

The list has elements (as shown in the picture above, n_list contains elements), and I'm not sure why the error says n_list does not have elements.

I'd really appreciate your help. Thank you for reading!

from itertools import combinations

def solution(nums):
    n_list=[]
    numlist = list(combinations(nums, 3))
    for eachtuple in numlist:
        newlist = list(eactuple)
        n = newlist[0]+newlist[1]+newlist[2]
        n_list.append(n)
        print(n_list)

    for n in n_list:
        for j in range(2, n):
            if n%j==0:
                n_list.remove(n)
            else:
                pass
    newset=set(n_list)
    return len(newset)