Python Chapter 4

Question 1

instance:

Answer 1

A member of a set. The TurtleWorld in this chapter is a member of the set of Turtle- Worlds.

Question 2

loop:

Answer 2

A part of a program that can execute repeatedly.

Question 3

encapsulation:

Answer 3

The process of transforming a sequence of statements into a function definition.

Question 4

generalization:

Answer 4

The process of replacing something unnecessarily specific (like a number) with something appropriately general (like a variable or parameter).

Question 5

keyword argument:

Answer 5

An argument that includes the name of the parameter as a “keyword.” interface: A description of how to use a function, including the name and descriptions of the arguments and return value.

Question 6

refactoring:

Answer 6

Theprocessofmodifyingaworkingprogramtoimprovefunctioninterfacesandother qualities of the code.

Question 7

development plan:

Answer 7

A process for writing programs.

Question 8

docstring:

Answer 8

A string that appears in a function definition to document the function’s interface. precondition: A requirement that should be satisfied by the caller before a function starts. postcondition: A requirement that should be satisfied by the function before it ends.

Question 9

instance:

Answer 9

A member of a set. The TurtleWorld in this chapter is a member of the set of Turtle- Worlds.

Question 10

loop:

Answer 10

A part of a program that can execute repeatedly.

Question 11

encapsulation:

Answer 11

The process of transforming a sequence of statements into a function definition.

Question 12

generalization:

Answer 12

The process of replacing something unnecessarily specific (like a number) with something appropriately general (like a variable or parameter).

Question 13

keyword argument:

Answer 13

An argument that includes the name of the parameter as a “keyword.” interface: A description of how to use a function, including the name and descriptions of the arguments and return value.

Question 14

refactoring:

Answer 14

Theprocessofmodifyingaworkingprogramtoimprovefunctioninterfacesandother qualities of the code.

Question 15

development plan:

Answer 15

A process for writing programs.

Question 16

docstring:

Answer 16

A string that appears in a function definition to document the function’s interface. precondition: A requirement that should be satisfied by the caller before a function starts. postcondition: A requirement that should be satisfied by the function before it ends.