========= aiosignal =========
.. image:: https://github.com/aio-libs/aiosignal/workflows/CI/badge.svg :target: https://github.com/aio-libs/aiosignal/actions?query=workflow%3ACI :alt: GitHub status for master branch
.. image:: https://codecov.io/gh/aio-libs/aiosignal/branch/master/graph/badge.svg?flag=pytest :target: https://codecov.io/gh/aio-libs/aiosignal?flags[0]=pytest :alt: codecov.io status for master branch
.. image:: https://badge.fury.io/py/aiosignal.svg :target: https://pypi.org/project/aiosignal :alt: Latest PyPI package version
.. image:: https://readthedocs.org/projects/aiosignal/badge/?version=latest :target: https://aiosignal.readthedocs.io/ :alt: Latest Read The Docs
.. image:: https://img.shields.io/discourse/topics?server=https%3A%2F%2Faio-libs.discourse.group%2F :target: https://aio-libs.discourse.group/ :alt: Discourse group for io-libs
.. image:: https://badges.gitter.im/Join%20Chat.svg :target: https://gitter.im/aio-libs/Lobby :alt: Chat on Gitter
Introduction ============
A project to manage callbacks in asyncio projects.
`Signal is a list of registered asynchronous callbacks.
The signal's life-cycle has two stages: after creation its content
could be filled by using standard list operations: sig.append()
etc.
After you call sig.freeze() the signal is frozen: adding, removing
and dropping callbacks is forbidden.
The only available operation is calling the previously registered
callbacks by using await sig.send(data).
For concrete usage examples see the Signals
_
section of the Web Server Advanced
_ chapter of the aiohttp
documentation_.
Installation ------------
::
$ pip install aiosignal
Documentation =============
https://aiosignal.readthedocs.io/
License =======
aiosignal is offered under the Apache 2 license.
Source code ===========
The project is hosted on GitHub_
Please file an issue in the bug tracker
.. _GitHub: https://github.com/aio-libs/aiosignal .. _aiohttp documentation: https://docs.aiohttp.org/