python3-blinker 1.4+dfsg1-0.3ubuntu2 (i386 binary) in ubuntu groovy

 Blinker provides a fast dispatching system that allows any number of
 interested parties to subscribe to events, or "signals".
 .
 Signal receivers can subscribe to specific senders or receive signals
 sent by any sender.
 .
 This package contains the Python 3 version.