How does continue work in this code? (python)

Question

# pede pelo nome do aluno, ou termina o programa, se "fim".
while(True):
    aluno = input("\nInsira o nome do aluno: ")
    while(aluno == "" or aluno == None):
        aluno = input("Por favor insira o nome do aluno: ")
    if (aluno == "Fim" or aluno == "fim"):
        print(bold + "Fechando o programa...\n" + bold_end) 
        sys.exit()  
    if (aluno.istitle() != True):
        qst = input("\nEste não parece ser um nome regular. Tem certeza que deseja prosseguir?")
        if (qst == 'N' or qst == 'No' or qst== 'Não' or qst == "n" ):
            continue

This is a little snippet of a program I've made to help me correcting the tests of my students. He does exactly what I want, but the last four lines that I've exposed work, and I don't know why.

If a name that is not composed not only of uppercase and lowercase letters is inserted, the program must question if I want to proceed with that name. If I type "N" or anything of the like, the program restarts, and asks me again for the name of the student. If I type in any other thing, the program proceeds as it should. The question is: why?

do you have anything inside `while(True)` below `continue` ? — furas, Feb 03 '17 at 02:32
@furas yes I do. The code keeps on asking the user for the number of correct answers. What I wanted is for, after negating, the code would go back to the start of the while loop, and if I said yes, that It would keep on going. It does exactly that, but I've kinda done it by accident. — Paulo Soares, Feb 03 '17 at 02:35
if you answert `N` then `continue` returns to `while(True)` - if you answer something different then it doesn't execute `continue` and it executes next lines of code which are inside `while(True)` — furas, Feb 03 '17 at 02:39

score 1 · Accepted Answer · answered Feb 03 '17 at 02:30

1

You seem to have mixed up continue and break.

break ends a loop. continue starts the next iteration (continues the loop from the top).

answered Feb 03 '17 at 02:30

Martijn Pieters

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Thanks. So I guess that to do what I want properly I should create a second loop, right? – Paulo Soares Feb 03 '17 at 02:32
1

I'd say you want to study http://stackoverflow.com/questions/23294658/asking-the-user-for-input-until-they-give-a-valid-response closely. – Martijn Pieters Feb 03 '17 at 02:34
that did it! Thank you – Paulo Soares Feb 03 '17 at 02:53

How does continue work in this code? (python)

1 Answers1