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Using Button Function In Python GUI Application

Introduction 

 
In this blog, I am going to create a button clicking function in Python GUI application. When a user clicks that Click Me button the button action will perform to change label text and color in that Python GUI application.
 
Software requirement
 
Python 3.5 and IDLE (Python 3.5)
 
Programming code
  1. import tkinter as tk  
  2. from tkinter  
  3. import ttk  
  4. win = tk.Tk()  
  5. win.title("Python GUI App")# Label  
  6. Lbl = ttk.Label(win, text = "Button Not Click ")  
  7. Lbl.pack()# Click event  
  8. def click(): action.configure(text = "Clicked")  
  9. Lbl.configure(foreground = 'red')  
  10. Lbl.configure(text = 'Button Clicked')# Adding Button  
  11. action = ttk.Button(win, text = "Click Me", command = click)  
  12. action.pack()  
  13. win.mainloop()  
About the code
 
First, I am Import the tkinter module, Next, assign a class and variables and create application title and label in following code.after label creation next button creation code next button clicking function code and finally I am started the windows event loop by calling the mainloop method then execute the code the python GUI application will appear on the screen.
 
Output
 
Before Click 
 
 
 
 After Click
 
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