python index of max value in list

1numbers = [5, 4, 7, 3, 9, 1, 2]
2biggest_number = max(numbers)
3print(numbers.index(biggest_number))

1# any list
2a = [1, 7, 3, 12, 5]
3
4# index of minimum element
5# if more than 1 minimum, 
6# first index is returned
7min_index = a.index(min(a))
8
9# index of maximum element
10max_index = a.index(max(a))

1>>> m = max(a)
2>>> [i for i, j in enumerate(a) if j == m]
3[9, 12]
4

1>>> m = max(a)
2>>> [i for i, j in enumerate(a) if j == m]
3[9, 12]