#!/usr/bin/env python3

import os
import tkinter as tk
from tkinter import Entry, Label


class App:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title("vim")
        self.root.attributes('-type', 'dialog')

        self.create_label()
        self.create_widget_get_password()
        self.create_button_ok()

    def mainloop(self):
        self.root.mainloop()

    def __event_get(self, _):
        print(self.widget.get())
        self.root.quit()

    def create_label(self):
        label_text = f"[sudo] password for {os.getlogin()}:"
        user_password = Label(self.root, text = label_text)
        user_password.grid(row = 1, column = 1)

    def create_widget_get_password(self):
        self.widget = Entry(self.root, show="*", width=15)
        self.widget.grid(row = 1, column = 2)
        self.widget.focus_set()

    def create_button_ok(self):
        btn = tk.Button(self.root, text="OK")
        btn.bind("<Button-1>", self.__event_get)
        self.root.bind("<Return>", self.__event_get)
        btn.grid(row = 1, column = 3)


if __name__ == "__main__":
    app = App()
    app.mainloop()