Raising and Handling Python Exceptions

Martin Breuss

Martin Breuss 9 Lessons 33m
basics python

A Python program terminates as soon as it encounters an error. In Python, an error can be a syntax error or an exception.

In this course, you’ll learn what an exception is and how it differs from a syntax error. After that, you’ll learn about raising exceptions and making assertions. Then, you’ll learn how to catch exceptions to prevent your program from unintentionally ending and to change the control flow of your program:

Diagram explaining try except else finally statements

You’ll learn about the basic use of a tryexcept block, as well as how to extend it using else and finally.

In this course, you’ll learn how to:

  • Differentiate exceptions from syntax errors
  • Use the assert keyword to check if a certain condition is met
  • Write custom exceptions that subclass Exception
  • Catch exceptions with a tryexcept block
  • Use the additional keywords else and finally
  • Catch built-in exceptions

About Martin Breuss

Martin Breuss Martin Breuss

Martin likes automation, goofy jokes, and snakes, all of which fit into the Python community. He enjoys learning and exploring and is up for talking about it, too. He writes and records content for Real Python and CodingNomads.

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