If you want to convert your bijoy file to unicode you can use this package.
pip install bijoy-to-unicode-file-converter
from converter import convert_bijoy_to_unicode
convert_bijoy_to_unicode('bijoy.txt', 'unicode2.txt')
# bijoy.txt is in input file
# unicode2.txt is the converted unicode file
# Happy Coding!
Credit
- bijoy2unicode
- langdetect