How deeply does Get Programming: Learn to code with Python cover widget?

Explains creation, placement, types, and event handling, then applies them in a countdown example.

Widget

As explained in Get Programming: Learn to code with Python

A widget is a graphical user-interface component that displays information or accepts user interaction within a window.

A widget is a graphical element inside a GUI window that displays information or lets users interact with a program. Buttons, menus, text boxes, labels, scrollbars, and canvases are widgets. section 37.1

Build a widget into a GUI in three steps:

Create the widget, such as a Button, Entry, or Label. section 37.3
Place it in the window with a layout method such as pack. section 37.3
Connect an event handler when the widget should respond to an action such as a click or menu selection. section 37.1 section 37.4

A button that changes the window

import tkinter def change_color(): window.configure(background="white") window = tkinter.Tk() white = tkinter.Button(window, text="Click", command=change_color) white.pack() window.mainloop() The button is created with a parent window, given a label, and connected to change_color. Clicking it runs the function and changes the window background. section 37.4

Table 37.1. Widgets available in tkinter

Widget name	Description	Widget name	Description
Button	Shows a button	Menubutton	Shows menus
Canvas	Draws shapes	OptionMenu	Shows a pop-up menu
Checkbutton	Shows options via checkboxes (can select more than one option)	PanedWindow	Contains window panes that can be resized
Entry	A text field the user can type text in	Radiobutton	Shows options via radio buttons (can select only one option)
Frame	Container to put other widgets in	Scale	Shows a slider
Label	Shows single line of text or an image	Scrollbar	Adds scrollbars to other widgets
LabelFrame	Container to add space	Spinbox	Like an Entry, but can select only from some text
Listbox	Shows options via a list	Text	Shows multiple lines of text
Menu	Shows commands (contained inside Menubutton)	TopLevel	Allows for a separate window container

Browse the tkinter widget table to compare controls such as Button, Entry, Label, Checkbutton, Radiobutton, Canvas, and Scrollbar. section 37.3

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Python How-ToA widget is a self-contained user-interface component that displays information or provides an interaction.

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Related concepts

Streamlitused by · Streamlit is an open-source Python framework for building interactive web applications, particularly for data and machine-learning applications.
check boxincludes · A checkbox is an interactive form control representing an independently selectable binary option that can be checked or cleared.
canvas elementincludes · The HTML canvas element is a scriptable bitmap drawing surface in a web document for rendering graphics.
sessionconfigured by · A session is a bounded interaction context associated with a user, client, or process that may maintain state across related operations or requests.
st.metricincludes · st.metric is a Streamlit display function that presents a labeled metric value and optionally its change from a reference value.
st.number_inputincludes · st.number_input is a Streamlit function that creates an input widget for entering a numeric value.

This explainer was generated by Manning's knowledge graph from the text of Get Programming: Learn to code with Python. The section links point to the parts of the book it draws on.