on press button in tkinterr code example

Example 1: python button tkinter

from tkinter import *

wow = Tk()

def ree(hi):
  print(hi)
  
w = Button ( master=wow, command=ree('hi'), text="hi" )

Output:
  Tkinter:
    ______
   [  hi  ] <--- Button
    ------
  
  Shell:
    hi <--- on button pressed

Example 2: buttons on canvas tkinter

# ... snip ...
button1 = Button(self, text = "Quit", command = self.quit, anchor = W)
button1.configure(width = 10, activebackground = "#33B5E5", relief = FLAT)
button1_window = canvas1.create_window(10, 10, anchor=NW, window=button1)