using python to create code

1. [1] First, write a function Leibniz_sum (n), where n is a positive integer, which computes the sum (-1) 1 1 (-1)" Leibniz_sum(n) = 4 411 + + 2i + 1 3 5 2n + 1 n = i=0 This sum was used (long before calculators and computers) to approximate the value of 7. Write a code to find the first value for n such that Leibniz_sum(n) 7