What are some effective error handling techniques in Python 3.9?

What are some effective error handling techniques in Python 3.9?

In Python 3.9, you can use try-except blocks, custom exceptions, and context managers for effective error handling.

Can you explain how to use try-except blocks?

Sure! A try-except block allows you to catch and handle exceptions. You write code in the 'try' block, and if an error occurs, the code in the 'except' block executes.

What about custom exceptions? How do I create one?

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

class MyCustomError(Exception):
    pass

Are there any best practices for error handling?

Yes! Some best practices include using specific exceptions, logging errors, and avoiding bare except clauses to catch all exceptions.