You should update your alphabet.find(text[0])
call to use text[0].lower()
as the argument. Pay attention to place the method call at the beginning of the line.
# User Editable Region
text = 'Hello World'
shift = 3
alphabet = 'abcdefghijklmnopqrstuvwxyz'
index = alphabet.find(text[0].lower)
print(index)
# User Editable Region
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Challenge Information:
Learn String Manipulation by Building a Cipher - Step 17