Change Label text in Tkinter through Variables

As per my knowledge,

Python has a standard GUI (Graphical user interface) that is Tkinter. It has the widgets tool. Here the main role of widgets is to provide a good variety of control.   Labels are an example of widgets. Changing a Windows label text dynamically  is very easy by following a few steps-

1. At first create a Tkinter application basically import the modules of Tkinter.
2. Then create the main window.
3. After that create a label into the lt function.
4. Then create a variable and use the Tkinter in-build function.
5. Then use the set method, it is basically whatever value I am putting here that will be stored in the variable.
6. Then use the label function for creating the label widget and it’s important that we use the text variable.
7. After that creating a button use Tkinter’s own button function in this add some text and the command will be the function name for attaching with the counter function.
8. In this way we can change a label text.

Note that pack() is place the label in the Tkinter window. Tkinter have this pack geometry which is organize the widgets. Tkinter support 3 geometry managers

pack 

 grid 

 place

The pack manager has many features to manage to widgets-

Side

Expand

Anchor 

import tkinter as haswati
newWindow=haswati.Tk()
newWindow.geometry("300x300+100+50")
def lt():
    variable=haswati.StringVar()
    variable.set("Thank you for pressing me")
    label=haswati.Label(newWindow,textvariable=variable)
    label.pack()

click=haswati.Button(newWindow, text="Press", command=lt)
click.pack()
newWindow.mainloop()

Output:

when the code we run we have to a button which is

Press.

After that when we click it then it shown like-