Make a python class instance Falsey
125900
Defining "boolness" of a class in python
1697
Are static class variables possible in Python?
34805
Is it possible to make abstract classes in Python?
86464
All instances of a class have the same dict as an attribute in Python 3.2
77954
Override a method at instance level
84493
Can't set attributes on instance of "object" class
150976
How to assign a new class attribute via __dict__?
41842
Is it possible to avoid repeating the class name in the implementation file?
57264
Making functions non override-able
107238
How to find instance of a bound method in Python?
39799
Does the `is` operator use a __magic__ method in Python?
33795
Is there a call_user_func() equivalent to create a new class instance?
132039
how to set compile time validation on class instance members
155637
Create object instance without invoking constructor?
13936
What is the difference between class and instance attributes?
121064
How to get class instances in Ruby?
133544
Is there a way to instantiate a class by name in Java?