Python Articles - Page 534 of 829

Tkinter bell() method produces the default event or dialogue sound of the system. This method can be invoked in the default window or frame. We can change the sound of the window by going to the system configuration.In this example, we will create a button that will make the default sound.Example#Import the library from tkinter import * #Create an instance of tkinter frame win= Tk() #Define the size of the window win.geometry("700x150") win.resizable(0, 0) #Define the Bell function def click():    win.bell() Button(win, text= "Click Me", command= click).pack(pady=20) win.mainloop()OutputRunning the above code will create ... Read More

In this article, we will see how to create a functional application that calculates the ratio. In order to make it fully functional, we will use SpinBox method that generally creates an ideal spinner for a value. This value can be modified using the spinner widget in the frame. Thus, a SpinBox object takes values in the range from minimum to maximum.First, we will create a tkinter frame inside which we will define some widgets.Examplefrom tkinter import * win = Tk() win.title("Ratio Calculator") win.geometry("600x500") win.resizable(0, 0) #Create text Label for Ratio Calculator label= Label(win, text="Ratio Calculator", font=('Times New ... Read More

Let us consider that we have a value x and we have to calculate the sum of sine(x) series. In a sine(x) series, there are multiple terms such that, sine(x) = x− x^3/fact(3) + x^5/fact(5) −x^7/fact(7)....In order to solve the particular series-based problem, we will first take the degree as the input and convert it into radian. To find out the sum of the total number of terms in this series, we will first iterate over all the given terms and find out the sum by operations.Approach to solve this ProblemTake input of Limit and degree.Iterate over the terms and ... Read More

Let us suppose that we have a string and we have to calculate the total number of digits and letters present in the string.For ExampleInput −s = “tutorialsP0int”Output −Letters: 13 Digits: 1Explanation −Total number of letters and digits present in the given string are 13 and 1.Approach to Solve this ProblemTo calculate the total number of letters and digits in the given string, we have to first iterate over the whole string. If we get an alphabet, then we increment the letter count; otherwise, if we extract a digit, then increment the digit count.Take an input string.While iterating over the whole string, ... Read More

Tkinter provides features for adding different kinds of widgets necessary for an application. Some of these widgets are: Button widget, Entry Widget, Text Box, Slider, etc. In this article, we will see how we can create an application with a button such that it can either be on or off.In this example, we will use these two buttons for demonstration, Switch OnSwitch OffExample# Import tkinter in the notebook from tkinter import * # Create an instance of window of frame win =Tk() # set Title win.title('On/Off Demonstration') # Set the Geometry win.geometry("600x400") win.resizable(0, 0) #Create a variable ... Read More

Sometimes we need to add unicode and special charset in our Tkinter application. We can add unicode characters in our labels or widgets concatenating the signature as, u ‘/’. You can find the list of all unicode characters from hereIn this example, we will add a unicode character in the button widget.Example# Import the required Libraries from tkinter import * #Create an instance of tkinter frame win= Tk() win.geometry("700x200") #Create a button Button(win, text='Click'+u'\u01CF', font=('Poppins bold', 10)).pack(pady=20) #Keep running the window or frame win.mainloop()OutputRunning the above code will create a button with a unicode character (u01CF).Read More

With Tkinter, we can call multiple functions at a time using Threading. It provides asynchronous execution of some functions in an application.In order to use a thread in Python, we can import a module called threading and subclass its Thread class. Inside our new class, we need to overwrite the Run method and perform our logic in there.So, basically with threading, we can do multiple work at a time. To achieve threading in our application, Tkinter provides the Thread() function.Let us take an example and create a thread which will sleep for some time and then execute another function in ... Read More

Tkinter can also be used to render the text file and load it on the canvas. Further, the text files can be used for other purposes like manipulating the data, grabbing the data, and rendering the data for other uses.Let us suppose that we have to read a text in the tkinter canvas file which contains more than 10, 000 lines of queries in it. It would take a long time to search for a particular query in the canvas after loading the text file. To handle such large text files, we can speed up the responsiveness of the file ... Read More

JavaScript Object Notation, or JSON is a simple data format that is used to exchange data between many different languages. It is simple to read for people and simple for computers to parse. Python reads JSON text as a quoted-string that contains the value in each key-value mapping. Once parsed, it is accessible in Python as a dictionary object. JSON data can be encoded and decoded using the built-in package json in Python. You must first import the json library in order to work with files of the json type. Purposeco JSON Python to JSON conversion is done using serialization. ... Read More

Tkinter is a Python library that is used for creating and developing GUI-based applications. In this article, we will see how to remove text from a Label that will have some text in it.To remove text from a label, we will create an associated button that will act as a trigger for the Label.Example#import Tkinter Library from tkinter import * #Create an instance of tkinter frame win= Tk() #Define the size and geometry of the frame win.geometry("700x400") #Create a function for the Button Comman def remove_text():    text.config(text=" ") #Create a text Label text= Label(win, ... Read More