in python

Given a list of data named data where each subsequent item in the list is smaller than the preceding item, compute smallestPosition as the integer posi tion in the list that has a value closest to 0.0. As an example, if the data refers to [1000.2, 100.1, 10.0, 1.0, -1.1, -10.2], smallestPosition would be assig ned 3. if data is empty, smallestPosition should refer to None. If two positions hold items that are equally close to 0.0, smallestPosition should refer to the lower position number