Gave error "list index out of range" and do not understand the reason

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notas = [10,5,6,7,8]

for i in range(0,len(notas)+1):
    print(notas[i])

Made the mistake:

line 4, in <module>
    print(notas[i])
IndexError: list index out of range
python for

1 answer

0

Your list has 5 elements, so len(notas) will return integer 5, being first position 0 and last 4.

You defined a loop of repetition so that:

for i in range(0,len(notas)+1):
    ...

That is, your range will go through the value set [0, len(notas) + 1[ (set opened on the right by language definition). Like len is 5, will stay [0, 6[, that dealing with integers will be the set (0, 1, 2, 3, 4, 5).

That is, in the last iteration, the i will be worth 5 and will try to access position 5 of your list, which does not exist.

The right thing would be without the + 1:

for i in range(0,len(notas)):
    ...

But better than that, you can scroll through the list directly without using the control variable i and without depending on the list size:

for nota in notas:
    print(nota)

To facilitate the identification of these types of problems I recommend reading:

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