Add item into array if not already in array

Question

How can I insert item into the array if its not already there?

This is what I tried:

    [..]
    k = []
    for item in myarray:
        if not item in k:
             print("Item is in array already.")
             k[] = item

Answer 1

Your code has the right idea but just use k.append(item) instead of k[] = item.

Also it is cleaner to say if item not in k: