How do I create custom exceptions in Python?

How do I create custom exceptions in Python?

You can create a custom exception by defining a new class that inherits from the built-in Exception class.

Can you show me an example of a custom exception?

Sure! Here's a simple example:

class MyCustomError(Exception):
    pass

raise MyCustomError('This is a custom error!')

What are some use cases for custom exceptions?

Custom exceptions are useful for handling specific error conditions in your application, making your code more readable and maintainable.

How can I catch my custom exception?

You can catch your custom exception using a try-except block like this:

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