import random

def pick(n, array):
    array2 = []
    for i in range(len(array)):
        if len(array2) == n:
            break
        random_index = 0
        random_index= random.randint(0,len(array)-1)
        element = array[random_index]
        if element not in array2:
            array2.append(element)
    return array2

a=['matt', 'john', 'peter', 'john', 'joseph', 'adam', 'steven', 'paul']

for i in range(100):
    pick(4,a)