What are custom exceptions in programming?

What are custom exceptions in programming?

Custom exceptions are user-defined exceptions that allow programmers to create specific error types for their applications.

Why would I want to use custom exceptions instead of built-in ones?

Using custom exceptions can make your code more readable and maintainable by providing clearer error handling tailored to your application's needs.

Can you give me an example of how to create a custom exception in Python?

Sure! You can create a custom exception by defining a new class that inherits from the built-in Exception class. Here's a simple example:

class MyCustomError(Exception):
    pass

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

How do I handle custom exceptions in my code?

You can handle custom exceptions using try-except blocks, just like with built-in exceptions. For example:

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