Blinker provides fast & simple object-to-object and broadcast signaling for Python objects.

The core of Blinker is quite small but provides powerful features:

• a global registry of named signals
• anonymous signals
• custom name registries
• permanently or temporarily connected receivers
• automatically disconnected receivers via weak referencing
• sending arbitrary data payloads
• collecting return values from signal receivers

Status

The latest Blinker release is 1.1 and requires Python 2.4 or higher for 2.x, and Python 3.0 or higher for 3.x.