I am trying to display random image in GUI. But i get the error that my list is not defined, even i globalised it. Anybody knows what went wrong?

1. def ALLFLAGS():
2. global GERMANY
3. global Germany
4. Germany = ImageTk.PhotoImage(Image.open("Flags/Germany.png"))
5. GERMANY = Label(game, image=Germany)
6. GERMANY.photo = Germany
7. GERMANY.pack()
8. global FRANCE
9. global France
10. France = ImageTk.PhotoImage(Image.open("Flags/France.png"))
11. FRANCE = Label(game, image=France)
12. FRANCE.photo = France
13. FRANCE.pack()
14. global allflags
15. allflags = [GERMANY, FRANCE]
16. ...
17. ...
18. random.choice(allflags)

ERROR: NameError: name 'allflags' is not defined