Object-Oriented Programming Flashcards
class
A ‘blueprint’ to instantiate an object
object
The most basic type of thing, and any instance of some thing (e.g. object is an instance of a class)
instance
What you get when you tell Python to create from a class
def
Define a function inside a class
self
Inside the functions in a class, self is a variable for the instance/object being accessed.
inheritance
The concept that one class can inherit traits from another class
composition
The concept that a class can be composed of other classes as parts
attribute
A property that classes have, from composition and are usually variables
is-a
A phrase to say that something inherits from another
has-a
A phrase to say that something is composed of other things or has a trait
class X(Y)
Make a class named X that is-a Y
class X(object): def __init__(self, J)
Class X has-a __init__ that takes self and J parameters
class X(object): def M(self, J)
Class X has-a function named M that takes self and J parameters
foo = X()
Set foo to an instance of class X
foo.M(J)
From foo, get the M function, and call it with parameters self, J
