Есть задание прошу помочь, Ajeje the librarian, recently found a hidden room in the Keras Library (a great place located in Umkansa, the largest - вопрос №5329801

import os

def read_index_file(source_root):
with open(os.path.join(source_root, 'index.txt'), 'r') as index_file:
songs = [line.strip().split(' ') for line in index_file.readlines()]
return songs

def tarahumara_to_umkansanian(note):
mapping = {'0': 'A', '1': 'B', '2': 'C', '3': 'D', '4': 'E', '5': 'F', '6': 'G', '7': 'G'}
return mapping[note]

def translate_song(source_root, song_path):
with open(os.path.join(source_root, song_path), 'r') as song_file:
content = song_file.read()

translated_notes = []
duration = 0
i = 0
while i < len(content):
if content[i] in '01234567':
note = tarahumara_to_umkansanian(content[i])
count = 1
i += 1
while i < len(content) and content[i] == content[i — 1]:
count += 1
i += 1
translated_notes.append(f'{note}{count}')
duration += count
elif content[i] == ' ':
count = 1
i += 1
while i < len(content) and content[i] == ' ':
count += 1
i += 1
translated_notes.append(f'P{count}')
duration += count
else:
i += 1

return ''.join(translated_notes), duration

def save_translated_song(target_root, song_path, translated_content):
target_path = os.path.join(target_root, song_path)
os.makedirs(os.path.dirname(target_path), exist_ok=True)
with open(target_path, 'w') as song_file:
song_file.write(translated_content)

def Umkansanize(source_root:str, target_root:str) -> dict[str,int]:
songs = read_index_file(source_root)
song_lengths = {}

for title, song_path in songs:
translated_song, duration = translate_song(source_root, song_path)
save_translated_song(target_root, song_path, translated_song)
song_lengths[title] = duration

with open(os.path.join(target_root, 'index.txt'), 'w') as index_file:
for title, duration in sorted(song_lengths.items(), key=lambda x: (-x[1], x[0])):
index_file.write(f'"{title}" {duration}\n')

return song_lengths