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Tiny grammar fix in error_handling.md

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Pan Piłkarz 2023-07-12 15:51:18 +02:00 committed by GitHub
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guide/src/function/error_handling.md
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@ -13,7 +13,7 @@ Rust code uses the generic [`Result<T, E>`] enum to propagate errors. The error
PyO3 has the [`PyErr`] type which represents a Python exception. If a PyO3 API could result in a Python exception being raised, the return type of that `API` will be [`PyResult<T>`], which is an alias for the type `Result<T, PyErr>`.
In summary:
- When Python exceptions are raised and caught by PyO3, the exception will stored in the `Err` variant of the `PyResult`.
- When Python exceptions are raised and caught by PyO3, the exception will be stored in the `Err` variant of the `PyResult`.
- Passing Python exceptions through Rust code then uses all the "normal" techniques such as the `?` operator, with `PyErr` as the error type.
- Finally, when a `PyResult` crosses from Rust back to Python via PyO3, if the result is an `Err` variant the contained exception will be raised.