Check total size of all torrents recursively in a dir

check_torrent_size.py

from pathlib import Path
# Install https://pypi.org/project/bencode.py/
# $ pip install bencode.py
import bencode

total_bytes = 0
files = list(Path().rglob('*.torrent'))
total_files = len(files)

print('Getting file sizes')

for index, torrent_file in enumerate(files):
    print(f'{index + 1:05}/{total_files}', end='\r')

    with open(torrent_file, 'rb') as file_:
        torrent_data = file_.read()

    torrent = bencode.decode(torrent_data)
    byte = torrent['info'].get('length', 0)

    if not byte:
        for tor_file in torrent['info'].get('files', []):
            byte += tor_file['length']

        if not byte:
            print(f'Could not read size from {torrent_file}')

    total_bytes += byte

sizes = {
    1: 'KB',
    2: 'MB',
    3: 'GB',
    4: 'TB',
    5: 'PT',
}
index = len(str(total_bytes)) // 4 + 1
human_readable_size = total_bytes
for temp in range(index):
    human_readable_size = human_readable_size / 1024

print(f'Toal size: {human_readable_size:.2f} {sizes[index]} ({total_bytes} B)')