No model named demucs

[luisrock]

Going to separate the file: Live- All Over You.wav
With command: python -m demucs.separate -n htdemucs -o tracks Live- All Over You.wav -d cpu -j 4 --segment 7 --overlap 0.1
/Users/maurolopes/pythonSites/streamstem/env/bin/python: No module named demucs.separate
Command failed, something went wrong.
INFO: 127.0.0.1:57887 - "POST /process_audio HTTP/1.1" 200 OK
INFO: 127.0.0.1:57910 - "GET /tracks/htdemucs_6s/Live-%20All%20Over%20You HTTP/1.1" 404 Not Found