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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Create a safer abstraction for `TypeAdapter` validation","articleBody":"In #1439 it became clear that there are a lot of cases where there is a `TypeAdaptor` validation in the codebase.\n\nTo ensure the resulting `ValidationErrors` are properly caught and re-raised with a dedicated error message, we should:\n\n- create 2 wrappers which accept a TypeAdaptor object as the first object, the object to validate as the second argument....\n- the first one would also a custom error class and custom error message as additional arguments. The wrapper will ensure all ValidationErrors are re-raised properly with custom errors\n- the second one would have a third argument giving the default return value for what to do on a validation error.\n- ban the `TypeAdaptor.validate_python` API via ruff config; inline ignore the violation for the two wrappers' use of it.\n- Work through the ruff violations and replace them with the safe wrapper.\n\nWe should document the rationale - we want to ensure that all `ValidationErrors` are handled and do not propogate.","author":{"url":"https://github.com/nathanjmcdougall","@type":"Person","name":"nathanjmcdougall"},"datePublished":"2026-03-20T22:22:30.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1440/usethis-python/issues/1440"}