Learning To Speak Object Oriented

Front 1

Class

Back 1

Tells Python to make a new king of thing

Front 2

Object

Back 2

Most basic kind of thing OR any instance of some thing.

Front 3

instance

Back 3

What you get when you tell Python to create a class

Front 4

Def

Back 4

How you define a function inside a class

Front 5

Self

Back 5

Inside the functions in a class, self is a variable for the individual instance/object being accessed.

Front 6

Inheritance

Back 6

The concept that one class can inherit traits form another class. e.g. me and my parents

Front 7

Composition

Back 7

The concept that one class can be composed of other classes as parts. e.g. car has wheels

Front 8

Attribute

Back 8

A property classes have that are from composition are usually variables

Front 9

is-a

Back 9

Something inherits from another

Front 10

has-a

Back 10

Something is composed of other things or has a trait

Front 11

class X(Y)

Back 11

"make class named X that is-a Y"

Front 12

class X(object): def __init__(self, J)

Back 12

"class X has-a __init__ that takes self and J as parameters.

Front 13

class X(object): def M(self, J)

Back 13

"class X has-a M funciton that takes self and J as parameters"

Front 14

foo = X()

Back 14

"set foo to an instance of class X"

Front 15

foo.M(J)

Back 15

"from foo get function M and call it with parameter J"

Front 16

foo.K = Q

Back 16

"from foo get the K attribute and set it to Q"