How do you use the ellipsis slicing syntax in Python?
This came up in Hidden features of Python, but I can’t see good documentation or examples that explain how the feature works. 4 Answers 4
subclass
Test whether a Ruby class is a subclass of another class
I would like to test whether a class inherits from another class, but there doesn’t seem to exist a method for that. class A end class B < A end B.is_a? A => false B.superclass == A => true A trivial implementation of what I want would be: class Class def is_subclass_of?(clazz) return true if … Read more
How do you find all subclasses of a given class in Java?
How does one go about and try to find all subclasses of a given class (or all implementors of a given interface) in Java? As of now, I have a method to do this, but I find it quite inefficient (to say the least). The method is: Get a list of all class names that … Read more
How do I check (at runtime) if one class is a subclass of another?
Let’s say that I have a class Suit and four subclasses of suit: Heart, Spade, Diamond, Club. class Suit: … class Heart(Suit): … class Spade(Suit): … class Diamond(Suit): … class Club(Suit): … I have a method which receives a suit as a parameter, which is a class object, not an instance. More precisely, it may … Read more
How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python. 10 Answers 10
How do I check if a type is a subtype OR the type of an object?
To check if a type is a subclass of another type in C#, it’s easy: typeof (SubClass).IsSubclassOf(typeof (BaseClass)); // returns true However, this will fail: typeof (BaseClass).IsSubclassOf(typeof (BaseClass)); // returns false Is there any way to check whether a type is either a subclass OR of the base class itself, without using an OR operator … Read more
