The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system.
This provides modular approach to programming. Classes. A class is a concept used in object oriented programming languages such as C++, PHP, and JAVA etc. Apart from holding data, a class is also used to hold functions. An object is an instant of a class. In case of variables, the type is the class whereas the variable is the object.
In Python, all functions (and as such also methods) are objects which can be passed around and played with. So the difference between unbound and bound methods is: 1) Bound methods. Bound methods are methods that belong to instances of a class. In this example, instance.method is bound to the instance called instance.