4. Functions Flashcards
algorithm
A general process for solving a category of problems.
argument
A value provided to a function when the function is called. This value
is assigned to the corresponding parameter in the function.
body
The sequence of statements inside a function definition.
composition
Using an expression as part of a larger expression, or a statement
as part of a larger statement.
deterministic
Pertaining to a program that does the same thing each time it
runs, given the same inputs.
dot notation
The syntax for calling a function in another module by specifying the module name followed by a dot (period) and the function name.
flow of execution
The order in which statements are executed during a program
run.
fruitful function
A function that returns a value.
function
A named sequence of statements that performs some useful operation.
Functions may or may not take arguments and may or may not produce a
result.
function call
A statement that executes a function. It consists of the function
name followed by an argument list.
function definition
A statement that creates a new function, specifying its name,
parameters, and the statements it executes.
function object
A value created by a function definition. The name of the function
is a variable that refers to a function object.
header
The first line of a function definition.
import statement
A statement that reads a module file and creates a module object.
module object
A value created by an import statement that provides access to
the data and code defined in a module.
parameter
A name used inside a function to refer to the value passed as an
argument.
pseudorandom
Pertaining to a sequence of numbers that appear to be random,
but are generated by a deterministic program.
return value
The result of a function. If a function call is used as an expression,
the return value is the value of the expression.
void function
A function that does not return a value.
What is the purpose of the “def” keyword in Python?
a) It is slang that means “the following code is really cool”
b) It indicates the start of a function
c) It indicates that the following indented section of code is to be stored for later
d) b and c are both true
e) None of the above
c) It indicates that the following indented section of code is to be stored for later
What will the following Python program print out?
def fred():
print("Zap")
def jane():
print("ABC")
jane()
fred()
jane()
a) Zap ABC jane fred jane
b) Zap ABC Zap
c) ABC Zap jane
d) ABC Zap ABC
e) Zap Zap Zap
d) ABC Zap ABC
