Find Average of User Input Defined number of Scores

[Larz60+]

scores = []
while True:
    try:
        score = int(input('Enter a score or -1 to quit: '))
    except ValueError:
        print(f"Please enter a number")
        continue
    if score == -1:
        break
    scores.append(score)
print(f"Mean of scores is {sum(scores)/len(scores)}")