No module named 'utils'

from home
$ cd /Git/TTS
$ sudo nvidia-docker run -it -rm -p 5002:5002 mozilla-tts
ModuleNotFoundError: No module named ‘utils’

tried:
export PYTHONPATH="~/Git/TTS"
export PYTHONPATH="~/Git/"

$ python setup.py develop
error: setup script exited with error: command ‘g++’ failed with exit status 1

gcc 9.1.0-2 (base-devel) installed
gcc 8.3.0-2