pallets-eco / blinker

A fast Python in-process signal/event dispatching system.

Blinker

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.

>>> from blinker import signal
>>> started = signal('round-started')
>>> def each(round):
...     print(f"Round {round}")
...
>>> started.connect(each)

>>> def round_two(round):
...     print("This is round two.")
...
>>> started.connect(round_two, sender=2)

>>> for round in range(1, 4):
...     started.send(round)
...
Round 1!
Round 2!
This is round two.
Round 3!

Links

• Documentation: https://blinker.readthedocs.io/
• Changes: https://blinker.readthedocs.io/#changes
• PyPI Releases: https://pypi.org/project/blinker/
• Source Code: https://github.com/pallets-eco/blinker/
• Issue Tracker: https://github.com/pallets-eco/blinker/issues/