That makes a lot of sense! Thanks :)

It means that the diference between the biggest gap and the shortest gap in the line can't be bigger than 1;
Example:

'-' are visual ' '

Wrong:
Lorem----ipsum-dolor           4-1 differ in 3

Right:
Lorem---ipsum--dolor           3-2 differ in 1

I'm slightly confused by the wording of the instruction - 'Gaps between words should not differ by more than one space', does that mean 3 spaces is the limit? I can't wrap my head around it! Thanks!

An easier way to build your dictionary may be to loop through all uppercase letters and then get their count from s using s.count(letter) - this way you don't have to worry about sorting and building the count yourself. You could use a dictionary comprehension here too!

Yeah that will also work. Thanks for the tip :)

Yeah that will also work. Thanks for the tip :)

And now somehow it works!