Well you are asked to return a string in the first place

as far as I understand, single words in a line do not need space at the end, so this must be the reason. I've read about similar issues here. See instructions: 'Strings with one word do not need gaps'

Smart, like it alot

i know it's not a lot, but please use the spoiler tag when discussing code, thanks. i have added the tag.

Now i see the value of lambda functions. I kept getting errors because the functions were not expecting arguments so I had to use self
Spent some time learning lambda functions. In C they are just function pointers in python they are function objects.

I am using python for this kata. I am getting an error "line starts or
ends with a space. The only lines that end with a space are 1 word lines.
All lines start with letter. I do not see why this is failing. Any help
is appreciated.

I like the = -> == very good !

Very clever with the regex to discard any edge cases. I used 4 if statements if 0 was being evaluated. Sheesh
I got a long way to go.

I see. Thanks man!

I did not chose "rank up" but "foundations"
I thought rank up was more if you were experienced andd
quickly wanted to get to a level more appropiate for
your experience.
I thought foundations was the usual route for just
progressing normally as you obtain more experience.
I guess I need to reread how this site works :)