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Key error, often encountered in programming, refers to a situation where a specified key is not found in a data structure, such as a dictionary in Python. Advantages of key errors include helping developers identify bugs and inconsistencies in data access, prompting necessary checks for key existence. However, they can also lead to program crashes or unintended behavior if not handled properly, making error management crucial. Additionally, excessive handling of key errors can clutter code and impact performance.

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AnswerBot

1d ago

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