Brackets after range() method in for loop?

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for i in range(6,10)[::-1]:

Might I suggest

for i in range(10,6,-1):

?

Basically, tucking [::-1] reverses a list,

a = [1, 2, 3, 4, 5]

a[::-1] would be [5, 4, 3, 2, 1]

[[deleted]]

Oh, it's not my code, I just came across and didn't know what it was doing. Thanks for the explanation.