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Project Description

aio.signals

Pubsub system for the aio asyncio framework

Build status

Installation

Requires python >= 3.4

Install with:

pip install aio.signals

Quickstart

The listen function is called synchronously, but the callback listener will be called as a coroutine if it isnt one

The callback listener receives a signal object that has the name of the signal and the object that the signal was emitted with

The emit function is a coroutine

Add the following code to a file my_signals.py

import asyncio
from aio.signals import Signals

def listener(signal):
    yield from asyncio.sleep(1)
    print(signal.data)

signals = Signals()
signals.listen("my-signal", listener)

loop = asyncio.get_event_loop()
loop.run_until_complete(
    signals.emit("my-signal", 'BOOM!'))

Run with

python my_signals.py

aio.signals usage

Using

>>> import asyncio
>>> import aio.testing
>>> from aio.signals import Signals

The handler receives a signal object

signal.name is the name of the signal

signal.data contains the emitted object

>>> @asyncio.coroutine
... def callback(signal):
...     print("%s received with %s" % (signal.name, signal.data))
>>> @aio.testing.run_until_complete
... def run_test(_signals, name, message):
...     yield from _signals.emit(name, message)
>>> signals = Signals()
>>> signals.listen("test-signal", callback)
>>> run_test(signals, "test-signal", 'BOOM!')
test-signal received with BOOM!

The handler is wrapped in a co-routine if its not one already

>>> def callback(signal):
...     yield from asyncio.sleep(1)
...     print("%s received with %s" % (signal.name, signal.data))
>>> signals = Signals()
>>> signals.listen("test-signal-2", callback)
>>> run_test(signals, "test-signal-2", 'BOOM AGAIN!')
test-signal-2 received with BOOM AGAIN!
Release History

Release History

0.1.3

This version

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0.1.2

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0.1.1

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0.1.0

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0.0.6

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0.0.5

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0.0.4

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0.0.3

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0.0.2

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0.0.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
aio.signals-0.1.3.tar.gz (3.6 kB) Copy SHA256 Checksum SHA256 Source May 25, 2015

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