Python KeyError Exceptions and How to Handle Them

Rich Bibby

Rich Bibby 5 Lessons 10m
basics python

Python’s KeyError exception is a common exception encountered by beginners. Knowing why a KeyError can be raised and some solutions to prevent it from stopping your program are essential steps to improving as a Python programmer.

By the end of this course, you’ll know:

  • What a Python KeyError usually means
  • Where else you might see a KeyError in the standard library
  • How to handle a KeyError when you see it
  • When to raise a Python KeyError in your code

About Rich Bibby

Rich Bibby

Rich is an avid Pythonista and a video instructor at Real Python. He is also a Network Engineer using Python to automate the management of a large network infrastructure. He lives in Dubai, UAE, with his wife and daughter plus a Miniature Schnauzer.

» More about Rich

Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

Participant Comments

Chasp on Nov. 26, 2019

Succinct and helpful. Really like Rich’s style of explanation. Learned something new!

Dev on Nov. 28, 2019

Very easy to follow

Anonymous on Nov. 29, 2019

Thorough & covers all the use cases.

« Browse All Courses