last index in python

1# Use an Index of -1
2l = [1,2,3,4]
3print(l[-1])
4# Returns 4

1# using rindex() 
2test_string = "abcabcabc"
3# using rindex() 
4# to get last element occurrence 
5res = test_string.rindex('c')  
6# printing result 
7print ("The index of last element occurrence: " + str(res))
8
9OUTPUT:
10  The index of last element occurrence: 8

1# using rindex() 
2test_string = "abcabcabc"
3  
4# using rindex() 
5# to get last element occurrence 
6res = test_string.rindex('c')   
7# printing result 
8print ("The index of last element occurrence: " + str(res))
9
10OUTPUT:
11  The index of last element occurrence: 8

1def list_rindex(li, x):
2    for i in reversed(range(len(li))):
3        if li[i] == x:
4            return i
5    raise ValueError("{} is not in list".format(x))

1l = [1,2,3,4,5]
2l[::len(l)-1]

1# python code to get 2nd to last item in a list
2my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
3print(my_list[-2])