Use range to add char. to empty string

[scidam]

In general, the problem statement

Then using range, write code such that when your code is run, lett has 7 b’s ("bbbbbbb").

slightly confuses me. A minimal solution would be

lett = ''
range
lett = 'b' * 7

We've used range function and assigned desired result to the lett variable.
Formally, everything is done. No one requires us to use for-loop.