how to create a text box in a class tkinter code example

Example: creating a text box with tkinter py

import tkinter as tk
class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.create_widgets()
    def create_widgets(self):
        self.w3=tk.Entry(self.master)
        self.w3.pack(side='top')
        self.quit = tk.Button(self.master, text='quit', command=self.master.destroy).pack()
        self.test = tk.Button(self.master, text='print', command=self.get_text).pack()
    def get_text(self):
      print(self.w3.get())
root = tk.Tk()
app = Application(master=root)
app.mainloop()