GitHub - tocodeil/python-design-patterns-demo

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Name		Name	Last commit message	Last commit date
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.gitignore		.gitignore
composite.py		composite.py
configuration.py		configuration.py
demo.py		demo.py
readme.txt		readme.txt
singleton.py		singleton.py

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When Decorator?
    * many types of classes
    * composable
    * create new types at runtime


When Composite?
    * many types of "things"
    * we know all the types in advance
    * we want to treat DIFFERENT things
      in the same way




1. Singleton
    - configuration
    - logging

2. Composite
    - Trees
    - box
    - UI

3. Decorator
    - files
    - network

4. Factory