chapter 1

Question 1

activecode

Answer 1

A unique interpreter environment that allows Python to be executed from within a web browser.

Question 2

algorithm

Answer 2

A general step by step process for solving a problem.

Question 3

bug

Answer 3

an error in a program

Question 4

byte code

Answer 4

An intermediate language between source code and object code. Many modern languages first compile source code into byte code and then interpret the byte code with a program called a virtual machine.

Question 5

codelens

Answer 5

An interactive environment that allows the user to control the step by step execution of a Python program

Question 6

comment

Answer 6

Information in a program that is meant for other programmers (or anyone reading the source code) and has no effect on the execution of the program.

Question 7

compile

Answer 7

To translate a program written in a high-level language into a low-level language all at once, in preparation for later execution.

Question 8

debugging

Answer 8

The process of finding and removing any of the three kinds of programming errors.

Question 9

exception

Answer 9

Another name for a runtime error.

Question 10

executable

Answer 10

Another name for object code that is ready to be executed.

Question 11

high-level language

Answer 11

A programming language like Python that is designed to be easy for humans to read and write.

Question 12

interpret

Answer 12

To execute a program in a high-level language by translating it one line at a time.

Question 13

low-level language

Answer 13

A programming language that is designed to be easy for a computer to execute; also called machine language or assembly language.

Question 14

object code

Answer 14

The output of the compiler after it translates the program.

Question 15

parse

Answer 15

To examine a program and analyze the syntactic structure.

Question 16

portability

Answer 16

A property of a program that can run on more than one kind of computer.

Question 17

print function

Answer 17

A function used in a program or script that causes the Python interpreter to display a value on its output device.

Question 18

program

Answer 18

A sequence of instructions that specifies to a computer actions and computations to be performed.

Question 19

programming language

Answer 19

A formal notation for representing solutions.

Question 20

python shell

Answer 20

An interactive user interface to the Python interpreter. The user of a Python shell types commands at the prompt (»>), and presses the return key to send these commands immediately to the interpreter for processing.

Question 21

runtime error

Answer 21

An error that does not occur until the program has started to execute but that prevents the program from continuing.

Question 22

semantic error

Answer 22

An error in a program that makes it do something other than what the programmer intended.

Question 23

semantics

Answer 23

meaning of a problem

Question 24

shell mode

Answer 24

A style of using Python where we type expressions at the command prompt, and the results are shown immediately. Contrast with source code, and see the entry under Python shell.

Question 25

source code

Answer 25

A program, stored in a file, in a high-level language before being compiled or interpreted.

Question 26

syntax

Answer 26

structure of a program

Question 27

syntax error

Answer 27

An error in a program that makes it impossible to parse — and therefore impossible to interpret.

Question 28

token

Answer 28

One of the basic elements of the syntactic structure of a program, analogous to a word in a natural language.