Script that takes a list of integer numbers, sorts and removes duplicates

Question

I’m taking a course in python and I’m trying to solve the following exercise:

Exercise 1 - Removing repeated elements

Write the remove_repeated function that takes as a parameter a list of integer numbers, checks whether such a list has repeated elements and removes them. The function should return a list corresponding to the first list, without repeating elements. The returned list should be sorted.

Tip: You can use lista.sort() or sorted(lista). What’s the difference?

I posted my code and I got a zero grade, I don’t understand where I’m going wrong. Follow:

def remove_repetidos (lista):
    lista2 = set(lista)
    lista = list(lista2)
    lista.sort()
    print (lista)


lista = []

while True:
    x = int(input('Numero: '))
    if x == 0:
        break
    lista.append(x)

remove_repetidos(lista)

Answer 1

I believe it’s self-explanatory, the function set() removes duplicates and function sorted() ordains lexicographically an eternal:

def remove_repetidos(lista):
  return sorted(set(lista))