In python, How to use singleton pattern?
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Is there a simple, elegant way to define singletons?
101578
How to find each instance of a class in Ruby
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Is there a way to instantiate a class without calling __init__?
81634
What is the difference between "Class.forName()" and "Class.forName().newInstance()"?
140941
Global or Singleton for database connection?
138356
Decorating Python class methods - how do I pass the instance to the decorator?
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Why is Python class not recognizing static variable
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In Python, can you call an instance method of class A, but pass in an instance of class B?
74926
On design patterns: When should I use the singleton?
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How to print instances of a class using print()?
137366
Disposable singleton in C#
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All instances of a class have the same dict as an attribute in Python 3.2
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Unity Singleton Code
50330
What __init__ and self do in Python?
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A private list variable is inadvertently shared between instance objects
13936
What is the difference between class and instance attributes?
14817
Why is __init__() always called after __new__()?