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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
If we will create an instance of Tkinter frame and display the window while keep running it, then it will show the default output canvas. However, we can add an image inside the Tkinter canvas as a background using PhotoImage methods and Canvas methods.Since image support in Tkinter is limited to Gif, PNG and PPM, the PhotoImage(GIF, PNG, PPM) function takes the location of the image file and displays the canvas with the image as a background.First, we will create a PhotoImage Object using the PhotoImage function.Examplefrom tkinter import * from PIL import ImageTk win = Tk() win.geometry("700x300") ... Read More
In Tkinter, we can create and customize buttons using images. These images can be uploaded by using the Python PhotoImage(file) function.However, PhotoImage() supports only a few image types such as PNG, PPM, and GIF. In addition, we can create buttons using BitMap images too. A bitmap image is nothing but a set of dots aligned in a matrix which represents a pixel of the image. The following types of bitmap attributes are available in Tkinter, "error""gray75""gray50""gray25""gray12""hourglass""info""questhead""question""warning"Examplefrom tkinter import * #Create an instance of tkinter frame win = Tk() win.geometry("700x300") win.resizable(0, 0) Button(win, relief=RAISED, bitmap="info").pack(pady=10) Button(win, relief=RAISED, bitmap="gray50").pack(pady=10) ... 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
Sometimes, the tkinter frame gets resized automatically according to the size of the widgets. To make the frame constant in size, we have to stop the widgets to resize the frame. So there are three methods, Boolean pack_propagate(True/False) method prevents the resizing of the frame from the widget.resizable(x, y) method prevents the window to be resized.Pack(fill, expand) values which resize the window to its defined size in the geometry.Basically, all the widgets inside the tkinter frame will be responsive and cannot be resized.Examplefrom tkinter import * win= Tk() win.geometry("700x300") #Don't allow the screen to be resized win.resizable(0, 0) ... 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