Remove use of len(seq) - 1 to get last item of an iterable

[ThibFrgsGmz]

Originating Project/Creator	@ThibFrgsGmz
Affected Component	python autocoder
Affected Architectures(s)
Related Issue(s)	void
Has Unit Tests (y/n)	n
Builds Without Errors (y/n)	Let CI run
Unit Tests Pass (y/n)	Let CI run
Documentation Included (y/n)	n

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Change Description

This PR removes the use of len(seq) - 1 to get last item of an iterable.

Rationale

It is not necessary to calculate the length of an iterable in order to get the last element of the iterable.
We can directly give it a negative index -1 to get the last element. We won't have to iterate over the sequence using len to get the last index if the goal is simply to get the last element.

Testing/Review Recommendations

void

Future Work

void

[kevin-f-ortega]

I agree. Using -1 is better.