Find and replace duplicates in Array, but replace each nth instance with a different string

Question

I have an array below which consists of repeated strings. I want to find and replace those strings, but each time a match is made I want to change the value of the replace strin

Answer 1

groupby is a convenient way to group duplicates:

>>> from itertools import groupby
>>> FinalArray = []
>>> for k, g in groupby(SampleArray):
    # g is an iterator, so get a list of it for further handling
    items = list(g)
    # If only one item, add it unchanged
    if len(items) == 1:
        FinalArray.append(k)
    # Else add index at the end
    else:
        FinalArray.extend([j + str(i) for i, j in enumerate(items, 1)])


>>> FinalArray
['champ', 'king1', 'king2', 'mak1', 'mak2', 'mak3']