Tkinter Python library can be used to create functional and featured applications. It has lots of packages and functions that are used for different functionalities. The filedialog package in tkinter gives access to interact with the file system in a local machine. Using filedialog, we can get access to any file from the system and use it to perform CRUD operation.To give the focus to the file dialog, we can have a parent window that is associated with the dialog. If the main window is defined globally on the top, the associated widgets get focused automatically on the top of ... Read More

We generally use Tkinter to develop standard GUI-based applications with default style and theme applied to all the widgets in it. To change the overall style of the application GUI, we use the ttk package. The Tkinter ttk is a themed widget which is used to style the tkinter widgets. It provides a native GUI look to the widget.The themed widget has many inbuilt functions and features which are accessible and can be used thoroughly in the application. ttk works in the same way as CSS does for an HTML page. You can use ttk either by importing directly or ... Read More

Update method processes all the pending idle tasks, unvisited events, calling functions, and callbacks. The method is applicable for updating and processing all the events or tasks such as redrawing widgets, geometry management, configuring the widget property, etc.It also ensures that if the application has any pending tasks, then it will just update or refresh the value that affects the whole part of the application. Using update for a single pending task would be nasty, thus Tkinter also provides the update_idletasks() method. It only updates the idle pending task that is stable or not updating in the application for some ... Read More

A widget in a Tkinter application can be configured easily by adding extensions and properties to it. The Text widget in tkinter is used to accept multiline user input. We can make the text inside the Text widget Scrollable by adding a scrollbar to it.The ScrolledText Widget is also available in Tkinter Library. It is the combination of Text widget and Scrollbar widget which provides features like scrolling the text in an application. In order to use ScrolledText widget in an application, you must import it first. The scrolledtext widget works similar to the standardText widget. It includes all the ... Read More

Tkinter Label widgets are created by defining the Label(parent, **options) constructor in the program. We use the Label widget to display Text or Images in any application. If we want to display a text, we have to assign a value to the text attribute in the constructor. You can also add multiple lines of text in the label widget by using next line attribute. It will separate the current text to the next line in the Label widget.Example# Import the tkinter library from tkinter import * # Create an instance of tkinter frame win= Tk() # Set ... Read More

Tkinter has many inbuilt functions and modules which are already implemented in Python. The MessageBox module in Tkinter is one of them that can be used in any application, just by using its associated function. The only limitation with these packages is that we cannot modify or change the MessageBox template. Hence, to implement a Custom Popup MessageBox, we can follow these steps, Create a Button and add a command to define a function to it.Define a function to create a Toplevel window and add other widgets to it.Add Buttons and confirmation Label Text in the Toplevel window.Add the Button ... Read More

You can set the position of a text widget by specifying its dimension using place(**option) geometry manager. Instantiating a widget inside a frame makes the widget independent throughout the application window. We then use the place()geometry manager to assign the width and height of the widget inside the window. The pixels justify how accurately a widget is positioned in the window. Thus, the place() geometry manager provides a grid system where we can place any widget in a particular location.Example# Import required libraries from tkinter import * from tkinter import ttk from lorem_text import lorem # Create an instance ... Read More

Python Matplotlib library is helpful in many applications for visualizing the given data and information in terms of graphs and plots. It is possible to run matplotlib in a Tkinter application. Generally, importing any Python library explicitly in an application gives access to all its functions and modules in the library.To create a GUI application that uses matplotlib and its functions, we have to import the library using the command from matplotlib.pyplot as plt. However, we also use Tkagg in the backend that uses the Tkinter user interface interactively.ExampleIn this example, we have imported Tkagg and matplotlib to visualize the ... Read More

Python Tkinter is a standard library that is used to develop GUI-based featured and functional applications. Whenever we execute our application, it displays a general window that contains some widgets and a title bar in it. The mainloop() method is responsible for executing the script and displaying the output window. However, mainloop() implies that it doesn't terminate automatically until the user remains in the window. Whenever the user terminates the program, it gets closed automatically. The mainloop() method gets called whenever the program starts executing.Example# Import the required libraries from tkinter import * # Create an instance of tkinter ... Read More

Tkinter provides Text widget to input data in a text field. It can accept multiline user input. Tkinter includes many inbuilt properties and features that can be used to improve the look and feel of the context. The text written in Text widget can be wrapped with wrap property. The wrap allows users to simplify the text editor by wrapping the context in words, characters or None. It fixes the indentation of the text inside the Text Editor.ExampleIn this example, we will wrap the sentences by words which means each word gets selected automatically without following the same line.# Import ... Read More