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To get the list of empty files in Windows OS using PowerShell, there are two ways, a) Using Length parameter. We will count the length of the file. If it is 0 then the file is empty as shown below.Get-ChildItem C:\Temp\ -Recurse | where{$_.Length -eq 0} | Select @{N='EmptyFiles';E={$_.FullName}}Output:b) Another method is a long one that we don’t want to go into. We need to check each file's content and if it is empty then we will declare that file as an empty file.Get-ChildItem C:\Temp -Recurse -File | foreach{ if((Get-Content $_.FullName) -eq $null){ ... Read More
Sometimes changes in the Windows environment variable can be deadly because it saves information about user profiles, application information, and OS information. It is always better to keep the Environment backup handy and update that file whenever there are any changes or at the regular interval.Taking up the environment variables backup is easy. To retrieve the environment variable list we can use the below command, Get-ChildItem env:To store the environment variable, we can use the Out-File command with text file but if the particular environment variable length is larger enough then we can’t store it in the text file properly.Instead, ... Read More
In order to install tkinter in a local computer, we use several commands on the basis of our OS architecture. There are two ways to import the tkinter library in our Window-based machine which are based on the Python version. Earlier, for lower versions of Python, we generally used to import the tkinter library using the following command −from Tkinter import *However, for Python 3 or later, we generally import the Tkinter library in the environment using the following command −from tkinter import *The only difference between Tkinter and tkinter is that Tkinter was initially used with Python 2 and ... Read More
Let us suppose we want to create an application where we want to add some description on tkinter widgets such that it displays tooltip text while hovering on the button widget. It can be achieved by adding a tooltip or popup.Tooltips are useful in applications where User Interaction is required. We can define the tooltip by instantiating the constructor of Balloon(win). After that, we can bind the button with the tooltip message that applies on the widget.Example#Import the tkinter library from tkinter import * from tkinter.tix import * #Create an instance of tkinter frame win = Tk() #Set the ... Read More
Tkinter Canvas are generally used for creating shapes such as arc, rectangle, triangle, freeform shapes, etc. All these shapes can be drawn using the inbuilt function available in tkinter library.ExampleIn this example, we will create a Circle using the create_oval(x0, y0, x1, y1) method by passing the following values of coordinates (x0, y0, x1, y1)#Import the library from tkinter import * #Create an instance of tkinter frame win= Tk() #Define the geometry of window win.geometry("600x400") #Create a canvas object c= Canvas(win, width=400, height=400) c.pack() #Draw an Oval in the canvas c.create_oval(60, 60, 210, 210) win.mainloop()OutputRunning ... Read More
Whenever we run a tkinter application, it displays a GUI-based window that would have widgets, frames, and other elements. Let us suppose we want to close our application with a function. The destroy() method in Python tkinter is used to terminate the normal execution of the application after the mainloop function.ExampleIn this example, will create a button object which triggers to close the application.#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x250") #Define a function def close_app(): win.destroy() #Create a text Label Label(win, text= ... Read More
Tkinter windows can be resized automatically by hovering and pulling over the window. We can disable the resizable property using the resizable(boolean value) method. We will pass false value to this method which will disable the window to be resized.Example#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("650x250") Label(win, text= "Hello World", font=('Times New Roman bold', 20)).pack(pady=20) #Make the window resizable false win.resizable(False, False) win.mainloop()OutputRunning the above code will display the following the tkinter window, but you won't be able to resize it.Read More
Pressing a key and handling some operation with the key is an event that can be triggered through a button. We can bind the key event using the Binding method in a tkinter application.Whenever the key will be triggered, it will call a handler that will raise the specific operation for the key event.If we want to trigger the Enter key with the bind function, we will use the bind('', Handler) method. For Enter Key, we use bind('', Handler) function.Example#Import the tkinter library from tkinter import * #Create an instance of tkinter frame win = Tk() #Set the ... Read More
In order to change the background color and foreground color of a tkinter frame, we can assign different values to the bg and fg parameters in the Frame function.ExampleIn this example, we have created two frames with different background colors.#Import the required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry of frame win.geometry("650x250") #Create an frame frame1= Frame(win, bg= "red") frame2= Frame(win, bg="black") #Create an label inside the frame Label(frame2, text= "Line:1", font=('Lucida font', 20)).pack(pady=20) Label(frame1, text= "Line:2", font=('Lucida font', 20)).pack(pady=20) frame1.pack() frame2.pack() win.mainloop()OutputRunning the above ... Read More
Tooltips are useful in applications where we need to display some information while hovering on a button.In order to create and display a tooltip, we can use the Balloon property of tkinter.Example#Import the tkinter library from tkinter import * from tkinter.tix import * #Create an instance of tkinter frame win = Tk() #Set the geometry win.geometry("600x450") #Create a tooltip tip = Balloon(win) #Create a Button widget my_button=Button(win, text= "Hover Me") my_button.pack(pady=20) #Bind the tooltip with button tip.bind_widget(my_button, balloonmsg="www.tutorialspoint.com") win.mainloop()OutputThe above code will display the following window with a button "Hover Me". When the user hovers ... Read More