We can add an event listener function to a button by passing a call-back function to ```command``` parameter.  ```command=someFunction"

```python
import tkinter as tk

window = tk.Tk()

def printInfo:
    print("clicked....")

button = tk.Button(text="Login",
				command=printInfo)

button.pack()

window.mainloop()
```




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A Button widget is similar to a Label widget, but it is clickable and can call a function. 
```python
button1 = tk.Button(text="Click Me",
				foreground="red")
button1.pack()
```


Creating Buttons with Tkinter

Real Python is a website that offers tutorials for different aspects of programming in Python: https://realpython.com

realpython

Adding Event Listener to Button

We can use the destroy() method to quit a window.

```python
button = tk.Button(text="Quit",
					foreground="red",
					command=window.destroy)
button.pack()
```
We can pass ```command=window.destroy``` as a parameter to close a window with a button click


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