python better way to check if an element exists in a list code example

Example 1: how to check if element is in list python

'''    
    check if element NOT exist in list using 'in'
'''
if 'time' not in listOfStrings :
    print("Yes, 'time' NOT found in List : " , listOfStrings)

Example 2: python check array exists

array = [1,2,3,4]
exists_2 = 2 in array
print(exists_2) # True
exists_5 = 5 in array
print(exists_5) # False