printing all text entered in a text widget tkinter code example

Example 1: print in text file python

price = 33.3
with open("Output.txt", "w") as text_file:
    text_file.write("Purchase Amount: %s price %f" % (TotalAmount, price))

Example 2: Update label text after pressing a button in Tkinter

#tested and working on PYTHON 3.8 AND ADDED TO PATH
import tkinter as tk
win = tk.Tk()

def changetext():
	a.config(text="changed text!")
    
a = tk.Label(win, text="hello world")
a.pack()
tk.Button(win, text="Change Label Text", command=changetext).pack()

win.mainloop()