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Python Python Collections (Retired) Slices sillyCase

Ashley Hu
Ashley Hu
5,799 Points
Posted by Ashley Hu
Ashley Hu
5,799 Points

Hey, its saying that slice indices must be integers. My code isnt working but it works on my text editor

This is my code def sillycase(string): return string[0:len(string)/2].lower() + string[(len(string)/2)::].upper()

silly.py 
# The first half of the string, rounded with round(), should be lowercased.
# The second half should be uppercased.
# E.g. "Treehouse" should come back as "treeHOUSE"
def sillycase(string): 
    return string[0:len(string)/2].lower() + string[(len(string)/2)::].upper()

1 Answer

Peter Lawless
Peter Lawless
24,404 Points
Peter Lawless
Peter Lawless
24,404 Points

Try using floor division for your slicing. The division operator returns a float, not an integer, so that is what is causing the error. Floor division will round the result down to the nearest integer. Try this:

def sillycase(string): 
    return string[:len(string)//2].lower() + string[(len(string)//2):].upper()
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

The code comments mention using the round() function. Floor division works part of the time but it doesn't always return the same result as round()

Either will produce the same result for the example string "Treehouse" but the challenge tests a different string and they don't produce the same result for that one.