Chapter 19

Question 1

GUI

Answer 1

graphic user interface

Question 2

widget

Answer 2

one of the elements that makes up a GUI, including buttons, menus, text entry fields, etc

Question 3

option

Answer 3

a value that controls the appearance or function of a widget

Question 4

keyword argument

Answer 4

an argument that indicates the parameter name as part of the function call

Question 5

callback

Answer 5

a function associated with a widget that is called when the user performs an action

Question 6

bound method

Answer 6

a method associated with a particular instance

Question 7

event-driven programming

Answer 7

a style of programming in which the flow of execution is determined by user actions

Question 8

event

Answer 8

a user action, like a mouse click or key press, that causes a GUI to respond

Question 9

event loop

Answer 9

an infinite loop that waits for user actions and responds

Question 10

item

Answer 10

a graphical element on a Canvas widget

Question 11

bounding box

Answer 11

a rectangle that encloses a set of items, usually specified by two opposing corners

Question 12

pack

Answer 12

to arrange and display the elements of a GUI

Question 13

geometry manager

Answer 13

a system of packing widgets

Question 14

binding

Answer 14

an association between a widget, an event, and an event handler. the event handler is called when the event occurs in the widget.