How to split string

[Chris]

On Dec 5, 10:55 am, Johny <pyt... at hope.cz> wrote:
> I have a string of a variable length and I need to split the string
> in strings of 6 characters .
> But if the 6th character is not space then I must split the string
> at possition  before the 6th character.
>
> For example:
> if the main string  S is
>
> S='abcde fghc ijkl mnop'
>
> the result should be
> abcde
> fghc
> ijkl
> mnop
>
> Do you have any idea how it can be done?
> Thank you
> L.

That's not a great example of what you are looking for, because that
result just looks like:
'\n'.join(S.split())

What result would you be looking for with say:
S='this is just a random sequence of letters courtesy of monkeys on
typewriters.'
?