are you testing an older version of your solution and have a newer one on VS?

ah, i see, it returns a float by default within that context, thanks

Using python, can expressions not be used for slice indices?
I understand expressions can be used wherever values can also be used

like so, trying this in my solution to check if string is already a palindrome:
if s[:len(s)/2 + 1] == s[len(s)/2:]:
return "OK"
I get:
"TypeError: slice indices must be integers or None or have an index method"

Got too honed in on a certain approach initially, then remembered the importance of simplicity