About lists

Question

Can someone explain both?
A = [1,2,3,4,5]
Print [-1:-3:-1]
And
Print[:]

Answer 1

Print(a[:])
Will return all value as a list have because it indicates from first to last
And for print(a[-1:-3:-1])
Assume it as a[-1:-(3-1)]
And in reverse order last index is indicated with -1

Answer 2

' : ' is slice operator,it will take two arguments and one more optional arguments.
The two arguments are start and end . Here start is included and end is excluded.
print(A[:]) here no arguments given it start at 0 and ends at len(A).
Third one option argument is jump.
A[-1:-3:-1]
Start -1
End -3
Jump -1

Answer 3

Got it thank you 😊

Answer 4

Devika Krishnan i was asking how it works. Its not defined.

Answer 5

In list A = [1,2,3,4,5]
We will count,
1 as 0
2 as 1
3 as 2
4 as 3
And so on...
If you print [:] in this way, then the output would be
[1,2,3,4,5]

Answer 6

but this code will show u an error
Print[-1:-3:-1]
NameError: name 'Print' is not defined