from tkinter import *
import os

def adminLogin():
    global AnameEL
    global ApwordEL # More globals :D
    global ArootA

    ArootA = Tk() # This now makes a new window.
    ArootA.geometry('1280x720')
    ArootA.title('Admin login') # This makes the window title 'login'

    f1 = Frame(width=200, height=200, background="#D3D3D3")
    f2 = Frame(width=400, height=200, background="#b4b4b4")

    f1.pack(fill="both", expand=True, padx=0, pady=0)
    f2.place(in_=f1, anchor="c", relx=.5, rely=.5)

    AnameL = Label(ArootA, text='Username: ') # More labels
    ApwordL = Label(ArootA, text='Password: ') # ^
    AnameL.grid(row=1, sticky=W)
    ApwordL.grid(row=2, sticky=W)

    AnameEL = Entry(ArootA) # The entry input
    ApwordEL = Entry(ArootA, show='*')
    AnameEL.grid(row=1, column=1)
    ApwordEL.grid(row=2, column=1)

    AloginB = Button(ArootA, text='Login')
    AloginB.grid(columnspan=2, sticky=W)

adminLogin()