negative index in Python

https://www.w3schools.com/python/gloss_python_string_negative_indexing.asp

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This is one of the unique feature of Python which other languages doesn't have.

index value of -1 gives the last element, and -2 gives the second last element of an array. The negative indexing starts from where the array ends.

Note : This can be applied to array not List. If in list you uses this, it would automatically get converted to positive index

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During performing slicing , if we want to fetch characters in a reverse order , raher than default left , than we make use of negative indexing ....

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L = [15, 22.4, 8,-5, 10, 3.14];;

L.sort(reverse = True);

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https://www.quora.com/What-is-negative-index-in-Python

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