how to reverse slice python list

Would appreciate some help, how do you slice a python list like example below:

a = [1,2,3,4,5,6,7,8]

I want the slice in a loop so output would be:

8,7,6,5,4,3,2,1
8,7,6,5,4,3,2
8,7,6,5,4,3
8,7,6,5,4
8,7,6,5
8,7,6
8,7
8

should be in function like :

    for i in range(len(a)):
        print(a["slice here"])

i’ve tried [-1::-1-i] not sure anymore? thought this would be straightforward ?

>Solution :

Below code works.

a = [1,2,3,4,5,6,7,8]
for i in range(len(a)):
    print(a[i:len(a)][::-1])

OR

a = [1,2,3,4,5,6,7,8]
for i in range(0,len(a)):
    if i==0:    
        print(a[-1:i:-1]+[a[0]]) 
    else:   
        print(a[-1:i-1:-1])