list index out of range error in python
Hii Everyone,
I have a problem with below, I don't why understand why error occured on working with lists and for loops together;
Hi Asmaa!
Thanks for reaching out!
The error in the provided code occurs when attempting to use list elements as indices, which go beyond the valid index range. Your code leads to an error because it attempts to access elements in a list using the elements themselves as indices. In Python, list indices start at 0, so valid indices for a list of length n are from 0 to n-1. In your code, n
is a list with elements [1, 2, 3, 4, 5, 6]
, and the loop attempts to access elements at indices 1, 2, 3, 4, 5, and 6, which go beyond the valid index range.
In the lecture example x = [0, 1, 2]
, there is no error because the loop correctly iterates over the elements of the list. In this case, x
is a list with elements [0, 1, 2]
, and the loop iterates over these elements (0, 1, and 2) one by one. It doesn't attempt to access elements using out-of-range indices.
Hope this helps.
Best,
Ivan