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To run an infinite loop in Tkinter, we will use the after method to call a method recursively after a specified time period until the user decides to stop the loop. Let's take a simple example and see how to start and stop an infinite loop.Steps −Import the required libraries and create an instance of tkinter frame.Set the size of the frame using win.geometry method.Next, create a user-defined function "infinite_loop" which will call itself recursively and print a statement on the window.Define two more user-defined functions, start() and stop(), to control the infinite_loop. Define a global variable "condition". Inside start(), ... Read More
To place objects in the middle of a frame, we can use the place method. Let's take an example and see how it's done.Steps −Import the required libraries and create an instance of tkinter frame.Set the size of the frame using win.geometry method.Next, create a button and label it.Set the position of the buttons using the place method by supplying the x and y coordinate values.Place the center of the widget at a relative x and y position of 0.5 of button widget (relx=0.5, rely=0.5). Set the anchor at the center by supplying "anchor=CENTER"Finally, run the mainloop of the application ... Read More
To place objects in the middle of a frame, we can use the place method. Let's take an example and see how it's done.Steps −Import the required libraries and create an instance of tkinter frame.Set the size of the frame using win.geometry method.Next, create a button and label it.Set the position of the buttons using the place method by supplying the x and y coordinate values.Place the center of the widget at a relative x and y position of 0.5 of button widget (relx=0.5, rely=0.5). Set the anchor at the center by supplying "anchor=CENTER"Finally, run the mainloop of the application ... Read More
To set the position of a button, we use the place method of button widget. The place method takes the x and y coordinates of the button.Steps −Import the required libraries and create an instance of tkinter frame.Set the size of the frame using win.geometry method.Next, create multiple buttons and name them "Button-1", "Button-2", etc.Set the position of the buttons using the place method by supplying the x and y coordinate values.Finally, run the mainloop of the application window.Example# Import the Tkinter library from tkinter import * from tkinter import ttk # Create an instance of Tkinter frame win ... Read More
To bind a Tkinter event to the left mouse button being held down, we can take the following steps −Create an instance of tkinter frame.Set the size of the frame using win.geometry method.Define an event handler "handler1" to print a statement when the mouse is moved with the left button being held down.Define another event handler "handler2" to print a statement when the mouse button is released.Use the bind method to bind with handler1.Use the bind method again to bind with hander2.Finally, run the mainloop of the application window.Example# Import required libraries from tkinter import * # ... Read More
To save the contents of a Textbox in Tkinter, we can take the following steps −Create an instance of tkinter frame.Set the size of the frame using win.geometry method.Define a user-defined method "open_text" to open a text file in "read" mode. Read the contents of the text file and save it in a variable called "content". Then, use the "insert" method to insert the contentin a Textbox.Next, define another user-defined method called "save_text" and in it, use the "write" method to save the contents of the textbox in the text file.Create a text widget using the Text method with specified ... Read More
To make a new folder using askdirectory dialog in Tkinter, we can take the following steps −Import the required modules. filedialog module is required for askdirectory method. os module is required for makedirs method.Create an instance of tkinter frame.Set the size of the frame using win.geometry method.Define a user-defined method "create_subfolder". Inside the method, call filedialog.askdirectory to select a folder and save the path in a variable, source_path.We can use askdirectory method of filedialog to open a directory. Save the path of the selected directory in a 'path' variable.Then, use os.path.join and makedirs to create a sub-folder inside the parent ... Read More
Given an array of numbers, we need to find the number of groups of size 2 and 3 that are divisible by 3. We can get the sums of two and three combination numbers and check whether they are divisible by 3 or not.Let's see an example.Inputarr = [1, 2, 3, 4]Output4 There are 4 combinations that are divisible by 3. The combinations are...[1, 2] [2, 4] [1, 2, 3] [2, 3, 4]AlgorithmInitialise the array.Write two loops to get all combinations of size two.Compute the sum of each group.If the sum is divisible by 3, then increment the count.Write three ... Read More
The digit 1 represent positive pole whereas 0 represents negative pole.The magnet will have both poles as 10 or 01. A group can be formed with the magnets that attracts each other. The magnets with different pole facing each other will be in the same group.Here, you are given N number of magnets. You need to find out number of groups can be formed with them.Whenever there are two different magnets side by side, there forms a new group. In that case increment the count of the groups.Let's see an example.Inputmagnets = ["10", "01", "01", "01", "10", "01"]Output4 There are ... Read More
Let's say you have given a binary string "10011". To make an alternate binary string, we need to flip a minimum of 2 characters as "10101".There are two possibilities for the alternate string. It will start with 0 or 1. We will check for two alternates and count the number of flips required for both.And then return the minimum of both. Let's see an example.Inputbinary = "10011"Output2 If we start the string with 0, then we have to flip 3 times. And if we start the string with 1, then we have to flip 2 times. The minimum is 2.AlgorithmInitialise ... Read More