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Introduction to Tkinter after() method All Tkinter widgets have the after() method with the following syntax: widget.after(delay, callback=None)Code language: Python (python) The after() method calls the callback function once after a delay milliseconds (ms) within Tkinter’s main loop. If you don’t provide the callback, the after() method behaves like the time.sleep() function. However, the after() method uses the millisecond instead of the second as the unit. TkinterContinue Reading

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Typically, a tkinter widget allows you to change its appearance based on a specific state. The following table shows a list of widget states and their meanings: State Meaning active The mouse is currently within the widget. alternate Ttk reserved this state for application use. background The widget is on a windowContinue Reading

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Introduction to ttk elements So far, you have learned that a theme is a collection of styles that defines the appearance of all Tkinter widgets. A style is a description of the appearance of a widget class. A style is composed of one or more elements. For example, a Label consists of border, padding and label elements. And these elements are nestedContinue Reading

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Introduction to the ttk styles A theme of a collection of styles that determine the appearances of Tkinter widgets. A style is a description of the appearance of a widget class. Typically, a theme comes with a predefined set of styles. Therefore, to change the appearance of ttk widgets, you can: Generally, theContinue Reading

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Introduction to Tkinter ttk themes In Tkinter, a theme determines the “look & feel” of all the widgets. It’s a collection of styles for all the ttk widgets. A style specifies the appearance of a widget class e.g., a Button. Each theme comes with a set of styles. It’s possible to change theContinue Reading

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Introduction to the Tkinter OptionMenu widget The OptionMenu widget provides you with a predefined set of options in a drop-down menu. To create a new OptionMenu widget, you use the OptionMenu constructor: OptionMenu(container, variable, default=None, *values, **kwargs)Code language: Python (python) The OptionMenu constructor accepts a number of parameters: The OptionMenu allows you to change the direction of the drop-down menu via the direction option.Continue Reading

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Introduction to the Menubutton widget A Menubutton widget is a combination of a Button and a Menu widget. When you click the Menubutton, it shows a menu with choices. For example: To create a Menubutton widget, you follow these steps: First, create a MenuButton widget: menu_button = ttk.Menubutton(container, **options)Code language: Python (python) Second, create a new instance of the Menu class: menu = tk.Menu(menu_button, tearoff=False)CodeContinue Reading

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When an application contains a lot of functions, you need to use menus to organize them for easier navigation. Typically, you use a menu to group closely related operations. For example, you can find the File menu in most text editors. Tkinter natively supports menus. It displays menus with theContinue Reading

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Introduction to the Tkinter color chooser dialog To display a native color chooser dialog, you use the tkinter.colorchooser module. First, import the askcolor() function from the tkinter.colorchooser module: from tkinter.colorchooser import askcolorCode language: Python (python) Second, call the askcolor() function to display the color chooser dialog: askcolor(color=None, **options)Code language: Python (python) If you select a color, the askcolor() function returnsContinue Reading

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Introduction to the Tkinter Open File Dialog functions When developing a Tkinter application that deals with the file system, you need to provide a dialog that allows file selections. To do that, you can use the tkinter.filedialog module. The following steps show how to display an open file dialog: First, import the tkinter.filedialog module:Continue Reading