pyyaml
requires

[Support for Apache Kafka backend]
kafka-python

[Support for Belkin WeMo Switch plugin]
ouimeaux

[Support for Google Assistant]
google-assistant-sdk[samples]

[Support for HTTP backend]
flask

[Support for MPD/Mopidy music server plugin]
python-mpd2

[Support for OMXPlayer plugin]
omxplayer

[Support for Philips Hue plugin]
phue

[Support for Pushbullet backend]
requests
websocket-client

[Support for YouTube in the OMXPlayer plugin]
youtube-dl

[Support for text2speech plugin]
mplayer
