Font used

• Futura

Required environment variables

• DEBUG (bool): Enable debug mode. Default: False
• USERNAME (str): Username for the Smart Mirror. Default: User
• ENABLE_ASSISTANT (bool): Enable Google Assistant. Default: True
• CREDENTIALS_PATH (str): Path to the Google Assistant credentials file. Default: ~/.config/google-oauthlib-tool/credentials.json
• ASSISTANT_TRIGGER (bool): Enable Google Assistant trigger word. Default: True

Configuration

1. Setup Python virtual environment and install requirements:

# Create new environment file from existing .env.sample
$ cp .env.sample .env

# Setup python virtual environment and activate it
$ python -m venv venv
$ source venv/bin/activate

# Install requirements
$ pip install -r requirements.txt
$ sudo apt-get install portaudio19-dev libffi-dev libssl-dev # Optional for Google Assistant

2. Follow the steps to configure the Actions Console project and the Google account. (optional)

3. Follow the steps to register a new device model and download the client secrets file. (optional)

4. Generate device credentials using google-oauthlib-tool: (optional)

google-oauthlib-tool --client-secrets path/to/client_secret<client-id>.json --scope https://www.googleapis.com/auth/assistant-sdk-prototype --save

5. Run the code:

python main.py

Possible Issues

• AttributeError: 'array.array' object has no attribute 'tostring':

  • Solution: Go to the file where you get this error, its called audio_helpers which is part of the Google Assistant SDK. Replace the tostring() method with tobytes() at line 57.

• from tenacity.async import AsyncRetrying (SyntaxError: invalid syntax):

  • Solution: Upgrade the tenacity package to the latest version.

    pip install --upgrade tenacity

• TypeError: Descriptors cannot be created directly.:

  If this call came from a _pb2.py file, your generated code is out of date and must be regenerated with protoc >= 3.19.0.
  If you cannot immediately regenerate your protos, some other possible workarounds are:
  1. Downgrade the protobuf package to 3.20.x or lower.
  2. Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use pure-Python parsing and will be much slower).
  

  • Solution: Downgrade the protobuf package to version 3.20.x or lower.

    pip install protobuf==3.20.0