Why is the str object not callable in this code

The code challenge requires you to write a function named sillycase, not make a variable with that name. The CC tries to call sillycase() and that's what's creating that error, since your sillycase is a string object and not a function.

Hi Gerard

I've got to be honest and say I'm struggling to figure out your code (probably not aided by its formatting) so I'm going to talk through my solution and hope it helps.

Line 1 - First up you have to create a function which is achieved by using def followed by the name you want to give it and wrapping any argument(s) (if any) in parenthesis. So in this case it wants the function to be called sillycase and expects a string argument.

Line 2 - Next I got the length of the string using the len function, divided it by two to half it and then used the builtin round function as specified in the challenge.

Lines 3 & 4 - I declare a couple of variables and use string slicing to grab each half applying the lower and upper methods respectively.

Line 5 - And lastly I return the completed string using concatenation

def sillycase(abc):
  split = round(len(abc)/2)
  first = abc[:split].lower()
  second = abc[split:].upper()
  return first + second

Hope it helps!