Which statement is true regarding exception handling in Python?

Which statement is true regarding exception handling in Python?

• A. All exceptions are derived from the BaseException class.
• B. Only run-time exceptions are derived from the Exception class.
• C. BaseException is used only for system-exiting exceptions.
• D. Exceptions in Python do not require a base class.

Answer: (A)

The statement regarding exception handling in Python that is true is that all exceptions are derived from the BaseException class. In Python, the exception hierarchy begins with the BaseException class, which is the root class for all exceptions. This means that every exception that can be raised in Python is ultimately a subclass of BaseException, allowing for a uniform way to handle exceptions across various types. This design supports the concept of a hierarchy where specific exceptions can inherit from BaseException or from the more commonly used Exception class, which itself inherits from BaseException. The wider hierarchy allows for both broad and fine-tuned exception handling. For instance, program logic can catch all exceptions derived from BaseException or just those derived from Exception, depending on the desired granularity. The other statements do not accurately describe the exception handling mechanism in Python. For example, while some exceptions are indeed derived from the Exception class, not all runtime exceptions are limited to it since all exceptions derived from BaseException could potentially include system-exiting exceptions as well. Furthermore, while BaseException can include system-exiting exceptions, it is still the overarching class for all exceptions, not exclusively for those scenarios. Lastly, all exceptions do require a base class since they are designed to inherit from the BaseException, emphasizing

The statement regarding exception handling in Python that is true is that all exceptions are derived from the BaseException class. In Python, the exception hierarchy begins with the BaseException class, which is the root class for all exceptions. This means that every exception that can be raised in Python is ultimately a subclass of BaseException, allowing for a uniform way to handle exceptions across various types.

This design supports the concept of a hierarchy where specific exceptions can inherit from BaseException or from the more commonly used Exception class, which itself inherits from BaseException. The wider hierarchy allows for both broad and fine-tuned exception handling. For instance, program logic can catch all exceptions derived from BaseException or just those derived from Exception, depending on the desired granularity.

The other statements do not accurately describe the exception handling mechanism in Python. For example, while some exceptions are indeed derived from the Exception class, not all runtime exceptions are limited to it since all exceptions derived from BaseException could potentially include system-exiting exceptions as well. Furthermore, while BaseException can include system-exiting exceptions, it is still the overarching class for all exceptions, not exclusively for those scenarios. Lastly, all exceptions do require a base class since they are designed to inherit from the BaseException, emphasizing