Python Design Patterns

Publish Subscribe Pattern

2016/04/12 10:15

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Observer Pattern

2016/04/12 10:17

In the Observer design pattern, an object (Subject) maintains a list of dependents (Observers) so that the Subject can notify all the Observers about the changes that it undergoes using any of the methods defined by the Observer.

The Singleton Design Pattern

2016/04/15 10:10

The Singleton design pattern is used when we want to ensure that one and only one object of the class gets created during the lifetime of our program, and provide an access point for an object that is global to the program. Concurrent access to the resources implemented as a ...

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