What is the exception hierarchy in Python?

Can you explain the exception hierarchy in Python?

Sure! In Python, exceptions are organized in a hierarchy, with the base class being BaseException. All built-in exceptions inherit from this class.

What are some common exceptions that inherit from it?

Common exceptions include Exception, ValueError, TypeError, and KeyError. Each serves a specific purpose.

How can I create a custom exception?

You can create a custom exception by defining a new class that inherits from the Exception class. For example:

class MyCustomError(Exception):
    pass

Can you give an example of using a custom exception?

Certainly! Here's a simple example:

class MyCustomError(Exception):
    pass

try:
    raise MyCustomError('This is a custom error!')
except MyCustomError as e:
    print(e)