To implement custom exceptions, create a new exception class by subclassing `Exception`. Use your custom exception in your code and provide meaningful messages to enhance error clarity.

Custom exception handling in Python allows you to create more specific and meaningful error reporting in your applications. To define a custom exception, create a new class that subclasses Exception. You can provide additional attributes or methods to your custom exception class to convey more information about the error context. For example:

class MyCustomError(Exception):
    def __init__(self, message, code):
        super().__init__(message)
        self.code = code

Using your custom exception in code can enhance error clarity, allowing you to catch specific exceptions and handle them appropriately. When raising exceptions, provide meaningful messages that describe the error condition, which can aid in debugging and logging. Implement try-except blocks to catch your custom exceptions and respond accordingly, whether by logging the error, retrying an operation, or providing user feedback. By using custom exceptions, you improve the maintainability and clarity of your error handling in Python applications.