cd src/dataset-process
./prepare_data
Solution:
Install backports.lzma with pip
python3.9 -m pip install backports.lzma
Open the file lzma.py:
vim /usr/local/lib/python3.9/lzma.py
Modify the line 27:
try:
from _lzma import *
from _lzma import _encode_filter_properties, _decode_filter_properties
except ImportError:
from backports.lzma import *
from backports.lzma import _encode_filter_properties, _decode_filter_properties