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Title: python-patterns/_book/python-observer.html at master · github-jinwei/python-patterns · GitHub

Open Graph Title: python-patterns/_book/python-observer.html at master · github-jinwei/python-patterns

X Title: python-patterns/_book/python-observer.html at master · github-jinwei/python-patterns

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Open Graph Description: 董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - github-jinwei/python-patterns

X Description: 董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - github-jinwei/python-patterns

Opengraph URL: https://github.com/github-jinwei/python-patterns/blob/master/_book/python-observer.html

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