Traceback (most recent call last): File "app.py", line 54, in <module> window = Window() File "app.py", line 22, in __init__ self.game = Game() File "/ide/workspace/play_ball/window.py", line 36, in __init__ self.window = tk.Tk() File "/usr/lib/python3.8/tkinter/__init__.py", line 2270, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

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