Traceback (most recent call last):


 "/home/ps/anaconda3/envs/biyanhua_py3/lib/python3.7/tkinter/__init__.py", line 3507, in __del__

self.tk.call('image', 'delete', self.name)
RuntimeError: main thread is not in main loop

Traceback (most recent call last):


 "/usr/local/lib/python3.7/tkinter/__init__.py", line 3504, in __del__

self.tk.call('image', 'delete', self.name)
RuntimeError: main thread is not in main loop
