- Assuming an instance's method is to be executed, the bound method is retrieved via
__getattribute__()and then the method is executed - The order in which methods are retrieved follows the
__mro__- MRO (method resolution order) is the order in which methods are looked up
- Whether it's single inheritance or multiple inheritance, the order in which methods are accessed is stored in that class's
__mro__, with items further to the left having higher priority