Python _tkinter.TclError from root.mainloop() after calling root.destroy()
Why do I get an error with my tkinter mainloop() about a invalid command name canvas? I am creating an AI board game, and I created a main loop. I use 2 lists for my checker id's, black_id, and white_id, just not portrayed here:
def main_game_AI():
print("Read the README file first to learn how to move.")
move = input("What do you move?:")
checker_move = int(move)
where = input("What direction will you move?:")
canvas.move(black_id[checker_move],-23,-50)
print("Robot: OOOOOOoooooh!! Tricky decision! I play:")
canvas.move(white_id[3], -23,50)
white3 = 18
print("We start with the",first_side,"side.")
while gameOn == True:
main_game_AI()
root.destroy()
root.mainloop()
In my loop, main_game_AI() runs, then I run the root.mainloop() for the tkinter gui to work. But I must use root.destroy(), so the loop continues. This works well for the first iteration. But when I put in the test inputs for the second iteration, I got the following error:
Traceback (most recent call last):
File "chineseCheckersAI.py", line 86, in <module>
main_game_AI()
File "chineseCheckersAI.py", line 77, in main_game_AI
canvas.move(black_id[checker_move],-23,-50)
File "/anaconda3/lib/python3.7/tkinter/__init__.py", line 2588, in move
self.tk.call((self._w, 'move') + args)
_tkinter.TclError: invalid command name ".!canvas"
python canvas tkinter while-loop
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
add a comment |
Why do I get an error with my tkinter mainloop() about a invalid command name canvas? I am creating an AI board game, and I created a main loop. I use 2 lists for my checker id's, black_id, and white_id, just not portrayed here:
def main_game_AI():
print("Read the README file first to learn how to move.")
move = input("What do you move?:")
checker_move = int(move)
where = input("What direction will you move?:")
canvas.move(black_id[checker_move],-23,-50)
print("Robot: OOOOOOoooooh!! Tricky decision! I play:")
canvas.move(white_id[3], -23,50)
white3 = 18
print("We start with the",first_side,"side.")
while gameOn == True:
main_game_AI()
root.destroy()
root.mainloop()
In my loop, main_game_AI() runs, then I run the root.mainloop() for the tkinter gui to work. But I must use root.destroy(), so the loop continues. This works well for the first iteration. But when I put in the test inputs for the second iteration, I got the following error:
Traceback (most recent call last):
File "chineseCheckersAI.py", line 86, in <module>
main_game_AI()
File "chineseCheckersAI.py", line 77, in main_game_AI
canvas.move(black_id[checker_move],-23,-50)
File "/anaconda3/lib/python3.7/tkinter/__init__.py", line 2588, in move
self.tk.call((self._w, 'move') + args)
_tkinter.TclError: invalid command name ".!canvas"
python canvas tkinter while-loop
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
Why are you trying to callmainloopin a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.
– Bryan Oakley
Nov 14 '18 at 8:42
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10
add a comment |
Why do I get an error with my tkinter mainloop() about a invalid command name canvas? I am creating an AI board game, and I created a main loop. I use 2 lists for my checker id's, black_id, and white_id, just not portrayed here:
def main_game_AI():
print("Read the README file first to learn how to move.")
move = input("What do you move?:")
checker_move = int(move)
where = input("What direction will you move?:")
canvas.move(black_id[checker_move],-23,-50)
print("Robot: OOOOOOoooooh!! Tricky decision! I play:")
canvas.move(white_id[3], -23,50)
white3 = 18
print("We start with the",first_side,"side.")
while gameOn == True:
main_game_AI()
root.destroy()
root.mainloop()
In my loop, main_game_AI() runs, then I run the root.mainloop() for the tkinter gui to work. But I must use root.destroy(), so the loop continues. This works well for the first iteration. But when I put in the test inputs for the second iteration, I got the following error:
Traceback (most recent call last):
File "chineseCheckersAI.py", line 86, in <module>
main_game_AI()
File "chineseCheckersAI.py", line 77, in main_game_AI
canvas.move(black_id[checker_move],-23,-50)
File "/anaconda3/lib/python3.7/tkinter/__init__.py", line 2588, in move
self.tk.call((self._w, 'move') + args)
_tkinter.TclError: invalid command name ".!canvas"
python canvas tkinter while-loop
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
Why do I get an error with my tkinter mainloop() about a invalid command name canvas? I am creating an AI board game, and I created a main loop. I use 2 lists for my checker id's, black_id, and white_id, just not portrayed here:
def main_game_AI():
print("Read the README file first to learn how to move.")
move = input("What do you move?:")
checker_move = int(move)
where = input("What direction will you move?:")
canvas.move(black_id[checker_move],-23,-50)
print("Robot: OOOOOOoooooh!! Tricky decision! I play:")
canvas.move(white_id[3], -23,50)
white3 = 18
print("We start with the",first_side,"side.")
while gameOn == True:
main_game_AI()
root.destroy()
root.mainloop()
In my loop, main_game_AI() runs, then I run the root.mainloop() for the tkinter gui to work. But I must use root.destroy(), so the loop continues. This works well for the first iteration. But when I put in the test inputs for the second iteration, I got the following error:
Traceback (most recent call last):
File "chineseCheckersAI.py", line 86, in <module>
main_game_AI()
File "chineseCheckersAI.py", line 77, in main_game_AI
canvas.move(black_id[checker_move],-23,-50)
File "/anaconda3/lib/python3.7/tkinter/__init__.py", line 2588, in move
self.tk.call((self._w, 'move') + args)
_tkinter.TclError: invalid command name ".!canvas"
python canvas tkinter while-loop
python canvas tkinter while-loop
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
edited Nov 14 '18 at 6:49
cdlane
18.3k21144
18.3k21144
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
asked Nov 14 '18 at 6:00
F. ZengF. Zeng
219
219
Why are you trying to callmainloopin a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.
– Bryan Oakley
Nov 14 '18 at 8:42
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10
add a comment |
Why are you trying to callmainloopin a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.
– Bryan Oakley
Nov 14 '18 at 8:42
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10
Why are you trying to call
mainloop in a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.– Bryan Oakley
Nov 14 '18 at 8:42
Why are you trying to call
mainloop in a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.– Bryan Oakley
Nov 14 '18 at 8:42
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10
add a comment |
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Why are you trying to call
mainloopin a loop? It should be called exactly once for the life of the program. You can't call it again once the window has been destroyed.– Bryan Oakley
Nov 14 '18 at 8:42
Yes, but then, i can't update the canvas.
– F. Zeng
Nov 15 '18 at 5:10