Python Chapter 3

Question 0

Define a function call

Answer 0

A function call is a statement that executes a function. It consists of the function name followed by an argument list.

Question 1

Define function

Answer 1

A named sequence of statements that performs some useful operation. Functions may or may not take argument and mayor may not produce a result

Question 2

What is function definition

Answer 2

A statement that creates a new function, specifying its name, and the statement it executes

Question 3

What is a function object

Answer 3

A value created by a function definition. The name of the function is a variable that refers to a function object

Question 4

Define header

Answer 4

The first line of a function definition

Question 5

Define body

Answer 5

The sequence of statements inside a function definition

Question 6

Define parameter

Answer 6

A name used inside a function to refer to the value passed as an argument

Question 7

True or false: the left side of an assignment statement has to be a variable name

Answer 7

True

Question 8

What are the rules for naming a function or a variable?

Answer 8

The first character cannot be a number
You cannot use a keyword is the name of the function
You should avoid having a variable and a function with the same name

Question 9

Describe the syntax for defining a function (the header)

Answer 9

Def print_lyrics():

Def - defines the function
Print_lyrics is the function name
() empty parenthesis mean the function takes no arguments
The header must end with :

Question 10

Describe the syntax of the body of function definition

Answer 10

It must be indented with four spaces
It can contain any number of statements
And the function you have to enter an empty line (not for script)

Question 11

Define argument

Answer 11

A value provided to a function when the function is called. This value is assigned to be corresponding parameter in the function

Question 12

Define local variable

Answer 12

A variable inside the function. A local variable can only be used inside its function

Question 13

Define return value

Answer 13

The results of a function. If a function called it is used as an expression, the return value is the value of the expression.

Question 14

Define fruitful function

Answer 14

A function that returns a value

Question 15

Define void function

Answer 15

A function that does not return a value

Question 16

Define module

Answer 16

A value created by import statement that provides access to the values defined in a module

Question 17

Define dot notation

Answer 17

Syntax for calling a function in another module by specifying the module meeting followed by a dot (period) And the function name

Question 18

Define composition

Answer 18

Using an expression as part of a larger expression, or statement as part of a larger statement

Question 19

Define flow of execution

Answer 19

The order in which statements are executed during a program run

Question 20

Define stack diagram

Answer 20

A graphical representation of a stack of functions, there are variables, and the values they refer to

Question 21

Define frame

Answer 21

A box in a stack diagram that represents a function call. It contains the local variables and parameters of the function

Question 22

Define traceback

Answer 22

A list of the functions that are executing, printed when an exception occurs