What does python the class construction function do?

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When Python encounters a class definition, it doesn't just store the code. Instead, it actively creates a class object that serves as a blueprint. This class object contains all the methods and attributes defined in the class, ready to create instances when needed. The class construction process follows five key steps. First, Python executes the code inside the class body. Second, it collects all defined attributes and methods into a dictionary. Third, it calls the metaclass, usually the built-in type function. Fourth, this creates the actual class object in memory. Finally, the class object is assigned to the class name in the current scope. The metaclass, usually the built-in type function, acts as a factory for creating class objects. It takes three inputs: the class name, base classes, and a dictionary of attributes and methods. The metaclass then constructs and returns the actual class object. This is equivalent to manually calling the type function with these parameters. It's important to distinguish between class construction and instance creation. Class construction happens only once when Python encounters the class definition and creates the class object. Instance creation happens multiple times whenever you call the class like a function, creating new objects based on the class blueprint. In summary, the class construction function is responsible for creating the class object itself - a blueprint that defines the structure and behavior for all future instances. This construction happens automatically when Python reads your class definition, creating a reusable template that can generate multiple instances when called.