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python

IndexError: list index out of range

Error message

IndexError: list index out of range

What broke

You attempted to access an element in a list using an index that is greater than or equal to the length of the list. This typically happens when the list is empty or when the index is incorrectly calculated.

Why it broke

The root cause is that list indices in Python are zero-based, meaning the first element is at index 0. If you try to access an index that is not within the range of the list, Python raises an IndexError.

How to fix

To fix this, ensure that the index you are trying to access is valid. You can check the length of the list before accessing an index or use exception handling to manage the error gracefully.

Code fix

if index < len(my_list):
    value = my_list[index]
else:
    print('Index out of range')

Explained by ErrorOracle

Prevention tip

You can check the length of the list before accessing an index or use exception handling to manage the error gracefully.

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