Computer Science · Python Dictionaries
A library management system uses a Python dictionary where book titles are keys and authors are values. What will happen if an existing book title key is added again with a new author value?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It automatically creates a nested dictionary
- 2The previous value gets overwritten✓
- 3It stores both values as a list
- 4It raises a KeyError
Correct answer
The previous value gets overwritten
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