API Error: 404 Not Found

Make sure the API endpoint exists.

Valohai API errors usually have more informative associated messages,  e.g. {"message": "Commit with identifier mycommit not found"}.

You should be able to view these messages if you print out the JSON response form the request.

For example r.raise_for_status() or something similar might be hiding the error message and showing just 404 Not Found.