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negative index

Negative index Access from end of sequence Python’s useful tool

python shell for negative index

In Python’s array, I find my way
With negative index, I seem to sway
From the end I start, without delay
Accessing elements, come what may

So, negative index in Python is a technique where you can access elements in a sequence from the end instead of the beginning. For example, if you have a list with 5 elements, using a negative index of -1 will give you the last element, -2 will give you the second to last, and so on. It’s a handy way to access elements without having to know the length of the sequence. One important thing to note is that if you use a negative index that is too large (i.e. abs(index) is greater than the length of the sequence), you’ll get an “index out of range” error. So, it’s important to be careful when using negative index to avoid accessing elements that don’t exist. Overall, negative index is a useful technique for accessing elements in a sequence from the end, and can be a helpful tool in your Python programming arsenal.