If your torrent client renamed your torrent's filename to its hash and you want to rename it back to torrent's name, this Python 3 script will help you do that.
To install, run this command:
pip install --upgrade -r requirements.txt
Run the script with this command:
python rename-from-hash.py
and then enter path to folder that contain the torrent filename you want to fix. It will automatically rename all the torrent files to their corresponding name.
Note: If torrent name already exist, it will add a number before the .torrent extension.