import tkinter
import sys
from tkinter import StringVar


def pu1() :
    username = ment1.get()
    password = ment2.get()
    NewWindow.destroy()
NewWindow = tkinter.Tk()
ment1 = StringVar()
ment2 = StringVar()
NewWindow.title("Sign up first!")
NewWindow.wm_iconbitmap('favicon.ico')
NewWindow.geometry("300x300")


#username=''
#password=''

#username label and box
usernamewidget = tkinter.Label(NewWindow, text="Username")
userent = tkinter.Entry(NewWindow,textvariable = ment1)

#password label and box
passwordwidget = tkinter.Label(NewWindow, text="Password")
passent = tkinter.Entry(NewWindow,textvariable = ment2)

setbtn = tkinter.Button(NewWindow, text="Set",command = pu1)



def login():
    usernameI = Ulog.get()
    passwordI = Plog.get()

    if usernameI == ment1 and passwordI == ment2:
        NewWindow2.destroy()


Ulog = StringVar()
Plog = StringVar()

NewWindow2 = tkinter.Tk()
NewWindow2.title("login")
NewWindow2.wm_iconbitmap('favicon.ico')
NewWindow2.geometry("300x300")

UsernameIn = tkinter.Label(NewWindow2, text="Username")
UserIENT = tkinter.Entry(NewWindow2,textvariable = Ulog)

PasswordIn = tkinter.Label(NewWindow2, text="Password")
PasswIENT = tkinter.Entry(NewWindow2,textvariable = Plog)

logbtn = tkinter.Button(NewWindow2, text="login",command = login)


usernamewidget.pack()
userent.pack()
passwordwidget.pack()
passent.pack()
setbtn.pack()
UsernameIn.pack()
UserIENT.pack()
PasswordIn.pack()
PasswIENT.pack()
logbtn.pack()


NewWindow.mainloop()