This is a preview of the video course, "Using raise for Effective Exceptions." In your Python journey, you’ll come across situations where you need to signal that something is going wrong in your code. For example, maybe a file doesn’t exist, a network or database connection fails, or your code gets invalid input. A common approach to tackle these issues is to raise an exception, notifying the user that an error has occurred.

This is a portion of the complete course, which you can find here:
https://realpython.com/courses/using-...

The rest of the course covers:
- Creating Custom Exceptions
- Asserting Conditions
- Recent Addition of Exception Grouping
- Multiple code examples