Sort formula + lambda

Question

Can anyone help me to interpret this code?

list = [3, 4, 2, 5]
s = sorted(range(len(list)), key = lambda i: list[i])
print(sorted(list))
print(s)

#>>>>>>>>>>>> [2, 3, 4, 5]
#>>>>>>>>>>>> [2, 0, 1, 3]

Answer 1

Thanks