1. Add appropriate exceptionsand exception handling to persistent basic_backend.py and Model.py.
basic_backend.py and the Model.py (code is attached).
In this version, the basic_backend.py provides a CRUD interface
Introduce your own, new exceptions for the Model class. It is not really necessary since Model could raise the same exceptions as basic_backend.py. However, this is an assignment to get some experience with exception writing, using and handling. Make sure,Model raises its own exceptions that convey useful error messages.
A) Basic_backend.py needs to be equipped to handle FileIO errors and do the appropriate exception handling for this code. Are there other places to add exception handling?
B) ModelBasic needs to handle any exceptions that basic_backend.py might raise and raise exceptions itself around critical code blocks.
C) Check for additional critical blocks you could find opportunities or exception handling.
