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A very simple implementation of the observer pattern

Project Description

A simple implementation of the observer pattern.

import simpleobserver
# Create a subject and list the events it might fire
foo = simpleobserver.Subject('bar', 'baz')

# Add a listener
def foo_bar_listener(*args):
   print("heard 'bar'", args)

foo('bar', foo_bar_listener)

# fire events
foo.fire('bar', 1, 2, 3)
# -> heard 'bar' (1, 2, 3)

# Trying to listen to an unregistered event throws an error
foo('snorble', lambda: None)
# -> AssertionError: snorble is not a valid event for this subject

# Same with trying to fire an unregistered event
foo.fire('snorble')
# -> AssertionError: snorble is not a valid event for this subject
Release History

Release History

This version
History Node

1.0.3

History Node

1.0.2

History Node

1.0.1

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
simpleobserver-1.0.3.tar.gz (2.0 kB) Copy SHA256 Checksum SHA256 Source Mar 30, 2015

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