如何在循环中更改值？

Question

Tell me how to make the value change in the loop when the command is needed:

for k, v in sorted(news_dict.items())[-2:-1]

eg always when I give the command "next" should add (-1). From [-2:-1] to [-3:-2] then [-4:-3] etc.

Answer 1

I'd say add another loop that will change these values

values = sorted(news_dict.items())
for i in range(1, 10):
    for k, v in values[-i - 1:-i]:
        print(k, v)