>>> tp = "a",2,8,7,"b"
>>> tp # renvoie ('a', 2, 8, 7, 'b')
>>> tp[2] = 3 # Renvoie une erreur car un tuple est immuable
              # Traceback (most recent call last):
              #       File "<stdin>", line 1, in <module>
              #  TypeError: 'tuple' object does not support item assignment
>>> lst = list(tp)
>>> lst # renvoie la liste ['a', 2, 8, 7, 'b']
>>> lst[2] = 3 # modification de la liste
>>> tp = tuple(lst) # conversion en un tuple
>>> tp # renvoie le tuple ('a', 2, 3, 7, 'b')