Wrap `pyo3_runtime.PanicException` in your own custom exception

[ondrej-ivanko]

Hi,

would it be possible to wrap the pyo3_runtime.PanicException raised by Python ffi bindings in pyo3 to your own custom exception which would inherit from Exception class and be exportable to third party code?

I'm running the code in Celery task and they're somewhat allergic to System exceptions caused by unhandled Rust code.
For mode details see this post

So far, I'm forced to use this solution:

try:
    # run some whitebox functionality
except BaseException as exc:
    # solution to avoid installing `pyo3` dependency
    if exc.__class__.__name__ == "PanicException":
        raise WbPanicException(
            "Whitebox function failed with unexpected exception"
        ) from exc

Thank you.

[rogerlew]

Hi,

whiteboxtools doesn't actually have py03 bindings. The WhiteboxTools class is running the tools with Popen.

I'm in a similar predicament and thought this might be useful for you:
#461