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Tkinter Entry widget accepts single line user-input in an entry field. You can customize the width, background color and size of the entry widget based on the need of your application.Let us assume that in a particular application, we want to disable an Entry widget. To disable the Entry widget, use state='disabled' property in the constructor. Disabling the Entry widget will not allow users to edit and add values to it.ExampleLet us understand this with an example. In this example, we will create an Entry widget using the constructor Entry(master, **options) and a Button to disable it. The function disable_entry() ... Read More
To create clickable areas in an image, create an image map, with clickable areas. For example, on clicking a box, the different website opens and on clicking a triangle in the same image, a different website opens.The tag defines an area inside an image-and nested inside a tag. The following are the attributes:Sr.NoAttribute & Description1altThe alternate text for the area2coordsThe coordinates for the area3downloadThe target will download when the hyperlink is clicked4shapeThe shape of the area5targetWhere the URL will openExampleYou can try to run the following code to create clickable areas in an image in HTML ... Read More
Tkinter TreeView widget is used to present data in a hierarchical manner in the form of rows and columns. To create a Treeview widget, you have to first create a constructor of Treeview(master, column, show='headings') widget. Here, you can specify the list of columns and pass the value to the column parameter that you want to include in the table.The indexing of data in the Treeview widget starts from 0. Therefore, to avoid counting the first column, we need to use the show=heading parameter. Let us create an application to show a table with two columns "ID" and "Company" of ... Read More
To place Tkinter widgets inside a Frame or a Canvas, you can use various geometry managers. The geometry manager allows you to set the layout of the widget and how they will appear in the tkinter window. The place() method is one of the simplest geometry managers which is used to set the position of a widget relatively and explicitly to the window. We can also use the place() method to separate the widgets from each other, as it supports the relative property to position the widget with respect to others.In some cases, if you want to temporarily remove a ... Read More
Tkinter is a GUI toolkit in Python used to build desktopbased applications. Tkinter provides several widget functionalities and class libraries to develop various components of an application. The Frame widget is one of the widgets that works similar to the standard tkinter default window. You can place as many widgets as you want in a Frame widget. You can also customize the properties like resizing the frame, its background color and also the layout using geometry managers.ExampleSuppose we need to create an application in which we want to create a Label widget inside a fixedsize frame. The Label widget must ... Read More
If you have ever wondered how the dialogboxes work in a Python application, then you probably end up hearing the filedialog module in Tkinter. The filedialog module contains a number of built-in functions which can be used to display various types of dialogs for dealing with files in the system.In most cases, we use the filedialog.askopenfilename() function to ask the user to browse and open a file from the system. Based on the selection of the filetype, the script is programmed to perform write or read operation.Once a file is opened, you can use the open(file, 'mode') function to open ... Read More
The Scale widget in tkinter allows you to create a visual scale slider object in your application which is used to specify the value using a specific scale. To implement the Scale object, you have to first create a constructor of Scale(root, **options). Here you can specify the properties and attributes of Scale such as command, background, label, length, orient, etc.Since the Scale widget is used to select specific values by dragging the slider, we can get the current value of the scale in a label widget. To retrieve the value of the Scale, use the get() method that returns ... Read More
To interact with the filesystem in a tkinter application, you can use the Tkinter filedialog module. It provides a way to deal with the files in the system. The filedialog module offers many built-in functions to help developers create a variety of file dialogs for the application. You can use any of the filedialog functions in order to implement a dialog in your application.The most commonly used function is filedialog.askopenfilename() which generally creates a dialog asking the user to open a file in the given program interface.ExampleSuppose we want to get a string or the filename which we open using ... Read More
While developing a Tkinter application, we often encounter cases where we have to perform some specific operation or event with the keystrokes (on keyboard). Tkinter provides a mechanism to deal with such events.You can use bind(, callback) function for each widget that you want to bind in order to perform a certain type of event. Whenever we bind a key with an event, the callback event occurs whenever a corresponding key is pressed.ExampleLet's consider an example. Using the bind("", callback) function, we can also bind all the number keys to display a message on the screen such that whenever a ... Read More
In Tkinter, users can input text using two basic text input widgets − the Text widget and the Entry widget. The Text widget is generally used to accept multiline user input, whereas in an Entry widget, the user can type only singleline text.You can customize these widgets and add additional functionality using built-in library functions and methods. To validate the input in an Entry widget, you can use the register() method. This method returns a string that can be used to call the function at later stages.To validate the input in an Entry widget, use the config(**options) method and pass ... Read More