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 "Round %s!" % 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!

See the Blinker documentation for more information.

Requirements

Blinker requires Python 2.4 or higher, Python 3.0 or higher, or Jython 2.5 or higher.

Changelog Summary

1.4 (July 23, 2015)

Verified Python 3.4 support (no changes needed)

Additional bookkeeping cleanup for non-ANY connections at disconnect time.

Added Signal._cleanup_bookeeping() to prune stale bookkeeping on demand

1.3 (July 3, 2013)

The global signal stash behind blinker.signal() is now backed by a regular name-to-Signal dictionary. Previously, weak references were held in the mapping and ephemeral usage in code like signal('foo').connect(...) could have surprising program behavior depending on import order of modules.

blinker.Namespace is now built on a regular dict. Use blinker.WeakNamespace for the older, weak-referencing behavior.

Signal.connect(‘text-sender’) uses an alternate hashing strategy to avoid sharp edges in text identity.

1.2 (October 26, 2011)

Added Signal.receiver_connected and Signal.receiver_disconnected per-Signal signals.

Deprecated the global ‘receiver_connected’ signal.

Verified Python 3.2 support (no changes needed!)

1.1 (July 21, 2010)

Added @signal.connect_via(sender) decorator

Added signal.connected_to shorthand name for the temporarily_connected_to context manager.

1.0 (March 28, 2010)

Python 3.x compatibility

0.9 (February 26, 2010)

Sphinx docs, project website

Added with a_signal.temporarily_connected_to(receiver): ... support

Metadata

Release files for blinker 1.4

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for blinker 1.4
File	Size	Uploaded
blinker-1.4.tar.gz	111.5 kB	Jul 23, 2015	Details

Release files / blinker-1.4.tar.gz

Download URL	blinker-1.4.tar.gz
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Upload date	Jul 23, 2015
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