'Solution' #1111
'Solution' #1111
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Review Summary
This is a very strong implementation of the Dictionary class, and you've done an excellent job with the core logic. However, I am requesting one change to handle a critical edge case. If a user initializes the dictionary with capacity=0, the code will raise a ZeroDivisionError in __setitem__ when calculating the index with the modulo operator (hash_value % self.capacity). To fix this, please add a check in the __init__ method to ensure the capacity is always a positive number, preventing this runtime error. This will make your implementation more robust. Great work on this so far!
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Footnotes
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| class Dictionary: | ||
| pass | ||
| def __init__(self, capacity: int = 8) -> None: |
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This implementation doesn't account for a capacity of 0. If a user creates a Dictionary(0), the code will raise a ZeroDivisionError in __setitem__ when calculating either the load factor (self.length / self.capacity) or the index (hash_value % self.capacity). Consider adding a check to ensure the capacity is always a positive integer.
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Review Summary
Excellent work on this implementation! I am approving your solution as it meets all the core functional requirements. You did a great job handling the capacity=0 edge case, which makes your Dictionary class much more robust.
As a final point of polish, I suggest adding a descriptive message to the ValueError in app/main.py. According to the project's code style checklist, exceptions should be informative. For example, you could write raise ValueError("Capacity must be a positive number") to make the error clearer. This is a minor suggestion for an otherwise solid submission. Well done!
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Footnotes
| pass | ||
| def __init__(self, capacity: int = 8) -> None: | ||
| if capacity <= 0: | ||
| raise ValueError |
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According to the checklist item 'Make sure that you provide a message when an exception raises', this ValueError should include a descriptive message. For example, you could write raise ValueError("Capacity must be a positive number").
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