Dear Team,

Greetings about your tremendous work in the Python project.

Here, we noticed Slicing methods syntax and its help doc may be confusing some people.

Default Slicing method syntax :

[start:stop:step]

start : start position / indices value in the list.

stop : stop position / indices value in the list.

step : step up value

here, we thought as stop position will be calculated as n-1.

it is good for (positive) indexing.

but, in negative indexing it will make some confusion.

so,

we think that, following would be best for everyone to be clear about slicing method syntax.

Requested Slicing method syntax update:

[start_at:stop_before:step_up_jump]

start_at : start at the position / indices value in the list.

stop_before : stop before the position / indices value in the list.

step_up_jump : step up jump as per given value