Issue: You should move the existing body of the function into the new for loop.
def pin_extractor(poems):
for poem in poems:
secret_code = ""
lines = poem.split('\n')
for line_index, line in enumerate(lines):
words = line.split()
if line_index < len(words):
secret_code += str(len(words[line_index]))
else:
secret_code += '0'
return secret_code
poem1 = """Stars and the moon
shine in the sky
white and
until the end of the night"""
poem2 = 'The grass is green\nhere and there\nhoping for rain\nbefore it turns yellow'
poem3 = 'There\nonce\nwas\na\ndragon'
poems = [poem1, poem2, poem3]
pin_extractor(poems)