Observer Pattern

This is a Python implementation of the observer pattern. It defines a one-to many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script can be good to avoid some limitations of multiple inheritance, when in need to expand functionalities of superclasses in the hierarchy or controlling the classes cooperation. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script implements an observer pattern for dictionaries and lists. It does not support a one-many relation. The observer is sent enough information so that the change can be undone. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script separates pattern implementation from your code so that you can reuse the implementation elsewhere. It is an example that shows a reusable implementation of the Observer pattern. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This class implements the observer design pattern. Acting as a registration hub, it fires simple Events when requested. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This is a Python module :mod:`nmevent`, simple C#-like implementation of the Observer pattern (http://en.wikipedia.org/wiki/Observer_pattern). It's main purpose and goal is to allow developers to use events with C#-like syntax in their Python classes. ============= Usage example =============... Platforms: *nix

LuaNotify is inspired on many libraries that do event dispatching, like py-notify, GSignals, QT event system, wxWidgets event system, etc. Making easier to implement lua software using Notifier/Observer pattern. Platforms: Windows, Mac, Linux

This script provides a basic undo mechanism. The undo mechanism is build on top of the observer pattern. The basic undoer records all parameters needed to undo the change of attributes. Platforms: Windows, Mac, *nix, Python, BSD Solaris

Knitting Pattern Generator is a Python script to convert image files (PNG, GIF, BMP, etc.) into knitting patterns. Usage: python kpg.py myimage.png. Platforms: *nix

Clipboard Observer is an extension which can load URI texts copied into the clipboard automatically. This can load URI texts copied into the clipboard automatically. You should not use this together with another application which observes the clipboard. This combination may cause troubles.... Platforms: *nix

IP Observer provides you with a way to observe your assigned IP adress also behind a internet router and give a new adress to people by email. The assigned IP adress from yor privider changed every day. Also at Flatrates there is a cut of. So you can´t access to your computer from outside... Platforms: *nix

The Official Pattern Release or OPR is Trend Micro's latest compilation of patterns for identified viruses. Trend Micro offers various types of Pattern Files to protect customers from Malware, Spyware/Grayware, and other threats... It is guaranteed to have passed a series of critical tests to... Platforms: Linux

The Official Pattern Release or OPR is Trend Micro's latest compilation of patterns for identified viruses. Trend Micro offers various types of Pattern Files to protect customers from Malware, Spyware/Grayware, and other threats... It is guaranteed to have passed a series of critical tests to... Platforms: Windows

In this game you will be given a grid of blocks, some of the grids will be highlighted for a moment, you need to memorise the pattern of the highlighted blocks and then reproduce the pattern. As the game progresses the grid will be larger and the number of highlighted blocks will also be larger,... Platforms: Windows

This script allows you to generate all the string described by a pattern passed on the command-line. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script is a sample implementation of the 'Null Object' design pattern. Roughly, the goal with Null objects is to provide an 'intelligent' replacement for the often used primitive data type None in Python or Null (or Null pointers) in other languages. These are used for many purposes... Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script contains a class that shows how to implement the singleton pattern in Python. A singleton is a class that makes sure only one instance of it is ever created. Typically such classes are used to manage resources that by their very nature can only exist once. Platforms: Windows, Mac, *nix, Python, BSD Solaris

In the factory pattern script you have an object that creates other objects.Factory is useful to separate implementation from interface. It adds a new indirection layer. When you want to instanciate an object you call its factory and the factory creates the instance. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This script is an implementation of the prototype pattern. In the prototype pattern you create a new instance cloning from other. Platforms: Windows, Mac, *nix, Python, BSD Solaris

Memento design pattern in python script allows you to cache instances based on what arguments are passed to them. Platforms: Windows, Mac, *nix, Python, BSD Solaris