The Singleton Pattern implemented with Python

The Singleton Pattern implemented with Python 1.1

The Singleton Pattern implemented with Python 1.1 Download Summary

  • Language: Python
  • Platform: Windows / Linux / Mac OS / BSD / Solaris
  • License: Other Free / Open Source License - Python License
  • Databases: N/A
  • Downloads: 557
  • Released: Jun 7, 2007

The Singleton Pattern implemented with Python 1.1 Description

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.

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Quasi Singleton Metaclass

In effect, this script provides a pattern for a set of quasi-singletons, identified by keyword. If no keyword is given, the default share is accessed. ...
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Separating Pattern Implementation from Your Code

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. ...
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Factory pattern

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. ... instanciate an object you call its factory and the factory creates the instance. ...
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Observer Pattern

This is a Python implementation of the observer pattern. It defines a one-to many dependency between objects ...
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Null Object Design Pattern

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 including the important case where one member of some group ...
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