Inheritance is a fundamental concept in object-oriented programming (OOP) that allows a class (called a subclass or derived class) to inherit properties and behaviors from another class (called a superclass or base class). In Python, a subclass can inherit attributes and methods from its superc...
This section describes what is a Superclass and a Subclass - a pair of classes that the second class extends from the first class. An object of subclass inherits all properties and operations from the superclass.
"Named tuples" in Python are a subclass of the built-in tuple type, but with the added ability to access elements by name rather than just by index.
In Python you can put more than one class in a file/module, unlike Java, so the class still remains close to top level class and could even have the class name prefixed with an "_" to help signify that others shouldn't be using it. The place where nested classes can prove useful ...
.typeis the usual metaclass in Python. In case you're wondering, yes,typeis itself a class, and it is its own type. You won't be able to recreate something liketypepurely in Python, but Python cheats a little. To create your own metaclass in Python you really just want to subclass...
In Python, the bool class, which supports the Boolean type, is a subclass of int. So, this type is also immutable.When it comes to collection types, str, bytes, and tuple are also immutable even though they can store multiple-item values....
I did go into the behaviour of Enum in the old version so I left it in here: Old Version The DynamicClassAttribute is just useful (I'm not really sure on that point) if you suspect there could be naming conflicts between an attribute that is set on a subclass and a property on t...
In Python, a metaclass is a subclass of a subclass that determines how a subclass behaves. A class is an instance of another metaclass. In Python, a class specifies how the class's instance will behave. Since metaclasses are in charge of class generation, you can write your own custom ...
(i.e., if A is a subclass of B, and B is a subclass of C, the A should a subclass of C)💡 Explanation:Subclass relationships are not necessarily transitive in Python. Anyone is allowed to define their own, arbitrary __subclasscheck__ in a metaclass. When issubclass(cls, Hashable)...
In software companies and large projects, where the packages might be imported into other classes, the names need to be distinctive. If two different packages contain a class with the same name it's important that there can be no naming conflict. This is done by ensuring the package names ...