How to correct what is written below:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\Dani Brothers\Anaconda3\lib\tkinter\__init__.py", line 1705,
in __call__
return self.func(*args)
File "D:/Python/Book Bank/New folder/PyCharm/Final/Excel.py", line 57, in
SaveBook
e_pissue.get(),
AttributeError: 'NoneType' object has no attribute 'get'Process finished with exit code 0 -- https://mail.python.org/mailman/listinfo/python-list
