Include duplicate indices and value in uniqueItems error message #1453
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When uniqueItems validation fails, the error message now includes which items are duplicated and at what indices. For example: [1, 2, 3, 2, 5] has non-unique elements (items at index 1 and 3 are equal: 2) This helps users quickly identify duplicates in large arrays without post-processing the validation result. Closes python-jsonschema#1363
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Summary
When
uniqueItemsvalidation fails, the error message now includes which items are duplicated and at what indices.Before:
After:
This helps users quickly identify duplicates in large arrays without needing to post-process the validation result.
Closes #1363