def log_pass():
        print(enter_login.get(), enter_password.get())
        if str(enter_login.get()) in str(log_in):
            if str(enter_password.get()) == str(pass_wd):
                next_w_i = threading.Thread(target=next_w())
                clozet_i = threading.Thread(target=clozet())
                next_w_i.start()
                clozet_i.start()
                next_w_i.join()
                clozet_i.join()
            else:
                messagebox.showerror("ALARM")
                root.destroy()
        else:
            messagebox.showerror("no login")
            root.destroy()
    def next_w():
        messagebox.showinfo("hello")
        os.system(python ppp.py)
    def clozet():
        root.destroy()

 import tkinter as tk
class Demo1:
    def __init__(self, master):
        self.master = master
        self.frame = tk.Frame(self.master)
        self.button1 = tk.Button(self.frame, text = 'New Window', width = 25, command = self.new_window)
        self.button1.pack()
        self.frame.pack()
    def new_window(self):
        self.newWindow = tk.Toplevel(self.master)
        self.app = Demo2(self.newWindow)
class Demo2:
    def __init__(self, master):
        self.master = master
        self.frame = tk.Frame(self.master)
        self.quitButton = tk.Button(self.frame, text = 'Quit', width = 25, command = self.close_windows)
        self.quitButton.pack()
        self.frame.pack()
    def close_windows(self):
        self.master.destroy()
def main(): 
    root = tk.Tk()
    app = Demo1(root)
    root.mainloop()
if __name__ == '__main__':
    main()