lists = [[1,-3,5,2,6,11,78,5,-345,-3,6,98,-5,0],[1,2,3,4,5,6,7,6,5,4,4],[-435,-64,-4,-6,-45,-8,-98,-7,-8],[32,45,56,554,12,33]]
for w in lists:
    lst = w
    a = float ("-inf")
    for x in range (0, len (lst)):
        b = lst [x]
        if (b > a):
            a = b
            c = x
            z = lst
print ("The list is:",z)
print ("The highest value is: " , a)
print ("The position is:", c+1)

Out:
The list is: [32, 45, 56, 554, 12, 33]
The highest value is:  554
The position is: 4

Out:
The list is: [1,-3,5,2,6,11,78,5,-345,-3,6,98,-5,0]
The second highest value is: 98
The position is: 12

>>> lst = [1,-3,5,2,6,11,78,5,-345,-3,6,98,-5,0]

>>> sorted(lst)
[-345, -5, -3, -3, 0, 1, 2, 5, 5, 6, 6, 11, 78, 98]
>>>
>>> second_most = sorted(lst)[-2]
>>> second_most
78
>>>
>>> lst.index(78)
6
>>>

import numpy as np
list = [32, 45, 56, 554, 12, 33]
inds = np.argsort(list)
print(list[inds[-2]])
# outputs: 56