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. That’s what Python’s raise statement is for.
Learning about the raise statement allows you to effectively handle errors and exceptional situations in your code. This way, you’ll develop more robust programs and higher-quality code.
In this video course, you’ll learn how to:
- Raise exceptions in Python using the
raisestatement - Decide which exceptions to raise and when to raise them in your code
- Explore common use cases for raising exceptions in Python
- Apply best practices for raising exceptions in your Python code
Congratulations, you made it to the end of the course! What’s your #1 takeaway or favorite thing you learned? How are you going to put your newfound skills to use? Leave a comment in the discussion section and let us know.
rjleon on April 16, 2024
Great tutorial and lots of context and practicality here. What hit home for my current project is to only use exceptions to convey a better message than what you get by default. I always wondered why I’m using a custom exception when the default messaging was already clear? I went back through my code and removed my custom exceptions.