How to identify if all numbers in list are the same or different if the list length is unknown (Python)? [duplicate]

Question

I'm using Python and I'm trying to figure out how to ascertain whether all numbers in a list are the same or different (even with just one integer being different) if beforehand I don't know the total number of elements in the list. Initially I wrote something like:

def equalOrNot(lst):
    if sum(lst)%len(lst)==0:
         return False
    else:
         return True

But it's not working in all cases. Any suggestions? Thanks

Answer 1

Use set:

if len(set(lst)) == 1: