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Python Python Collections (2016, retired 2019) Slices sillyCase

Posted by Mohammad Aslam
Mohammad Aslam
6,053 Points

Converting String to List to String

Can someone please advise why this is not correct? I have the function which is supposed to turn a string into a string with the first half lower case and the second half upper case. I have done this by converting the string into a list and then re-joining the combined list.

Would appreciate your help. My apologies if the parentheses in the function are confusing.

sillycase.py 
def sillycase(string):
    list1 = list(string)
    first = list1[0:(int((len(list1)/2)+1))].lower()
    second = list1[(int((len(list1)/2)+1)):].upper()
    return "".join(first + second)

2 Answers

Stuart McIntosh
.a{fill-rule:evenodd;}techdegree seal-36
Stuart McIntosh
Python Web Development Techdegree Graduate 22,874 Points

hi there, couple of pointers.

  1. list has no .upper() or .lower() attributes
  2. Just use the 'string' passed in as a string is mutable
  3. Revisit your len(string) / 2 + 1 : no need for the + 1

Hope that helps.

Mohammad Aslam
Mohammad Aslam
6,053 Points
Mohammad Aslam
Mohammad Aslam
6,053 Points

Thanks, I passed the challenge.

No need to convert the string into a list.