[Tutor] Pep 8, about indentation

[Alex Kleider]

On Aug 7, 2015 1:18 AM, Cameron Simpson <cs at zip.com.au> wrote:
>
> 
> However, when _editing_ I tell vi that when I press TAB it is to insert enough 
> SPACE characters to get to the next 4 column position. 

How do you do that?
I've got vim set up so a CTRL-T while in insert mode does that (and CTRL-D does the opposite) but don't know how to make use of the tab key.