mykeys.py

#!/usr/bin/env python3

import tkinter as tk

#https://docs.python.org/3/library/tkinter.html

my_accounts = {
        "user1": {
            "example.com": 148888888,
            },
        "user2": {
            "example.com": 148888888,
            },
        }


class MyAccounts:

    def __init__(self):
        pass


class MyKeysFrame(tk.Frame):

    def __init__(self, tkroot=None):
        super().__init__(tkroot)
        self.pack()
        self.__create_widgets()

    def __create_widgets(self):
        self.label = tk.Label(self, text="Hello, world!")
        self.label.pack()


if __name__ == '__main__':
    tkroot = tk.Tk()
    frame = MyKeysFrame(tkroot=tkroot)
    frame.mainloop()