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Python Python Collections (2016, retired 2019) Slices sillyCase

Enzie Riddle
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Enzie Riddle
Front End Web Development Techdegree Graduate 19,278 Points
Posted by Enzie Riddle
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Enzie Riddle
Front End Web Development Techdegree Graduate 19,278 Points

Uppercase and Lowercase with Slices

Here's the question:

I need you to create a new function for me. This one will be named sillycase and it'll take a single string as an argument. sillycase should return the same string but the first half should be lowercased and the second half should be uppercased. For example, with the string "Treehouse", sillycase would return "treeHOUSE". Don't worry about rounding your halves, but remember that indexes should be integers. You'll want to use the int() function or integer division, //.

I am quite lost, and don't know where to start. PLEASE answer step-by-step; I am new at this! Thanks!

sillycase.py 
def sillycase(single_string):
    sillycase.index(single_string)