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Showing content from https://realpython.com/courses/python-keyerror/ below:

KeyError Exceptions in Python and How to Handle Them – Real 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

What’s Included:

• 5 Lessons
• Video Subtitles and Full Transcripts
• 2 Downloadable Resources
• Accompanying Text-Based Tutorial
• Q&A With Python Experts: Ask a Question
• Certificate of Completion

Downloadable Resources:

• Course Slides (PDF)
• Sample Code (.zip)

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