Proof of concept - multiple line text input with tkinter

import tkinter as tk

class getTextWindow():
    def __init__(self,prompt,btnText):
        self.theText = None

        self.display = tk.Tk()

        promptElement = tk.Label(self.display, text=prompt)
        promptElement.pack()

        self.entryBox = tk.Text(self.display)
        self.entryBox.pack()

        button = tk.Button(self.display, text = btnText,command=self.storeText)
        button.pack()

        self.display.mainloop()

    def storeText(self):
        self.theText = self.entryBox.get("1.0", tk.END)
        self.theText = self.theText[:len(self.theText)-1]
        self.display.destroy()

    def getText(self):
        return self.theText


getCode = getTextWindow('Enter the code:','Confirm')

playerCode = getCode.getText()

print(playerCode)