Use of `len(seq) - 1` to get last element of an iterablePTC-W0044
There’s no need to calculate length of an iterable in order to fetch the last element of the iterable. You can provide a negative index -1 to it directly in orger to get the last element. In this way, you don't have to iterate over the sequence using len to get the last index when your purpose is only to get the last element.
No use of `self`PYL-R0201
The method doesn't use its bound instance. Decorate this method with @staticmethod decorator, so that Python does not have to instantiate a bound method for every instance of this class thereby saving memory and computation. Read more about staticmethods here.
Unnecessary comprehensionPTC-W0016
The built-in function being used does not require comprehension and can work directly with a generator expression. Using a generator expession within these functions is faster than using a comprehension.
Consider using literal syntax to create the data structurePTC-W0019
Using the literal syntax can give minor performance bumps compared to using function calls to create dict, list and tuple.
Consider using `join`PYL-R1713
Consider using str.join(sequence) instead of joining the elements of a sequence using for loop iteration.
str.join(sequence) is faster, uses less memory and increases readability compared to a for loop iteration.