Which types of constructors exist in Python?

In Python, constructors are primarily categorized into two types: parameterized constructors and default constructors.

A default constructor is one that does not take any arguments, allowing an object to be created without requiring initial values for its attributes. When defined, this kind of constructor simply initializes the object with default values or no specific values at all. For example, if a class is defined with the __init__ method that takes no parameters besides self, it qualifies as a default constructor.

On the other hand, a parameterized constructor is one that requires arguments to be passed at the time of object creation. This allows for more flexibility, as it enables the assignment of specific values to an object's attributes upon creation. By including parameters in the __init__ method, a class can receive arguments that tailor the instantiated object's state.

The distinction between these two constructor types is fundamental in object-oriented programming, as it affects how classes are used and how objects are initialized depending on the needs of the application. The other options presented do not accurately represent the common practices regarding constructors in Python.