Unify exceptions between web and file clients #69
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This PR introduces changes to unify exceptions between
DICOMwebClientandDICOMfileClient. Specifically, it ensures that errors that would result inrequests.HTTPErrorexceptions inDICOMwebClientare handled the same way byDICOMfileClient, including HTTP status codes to differentiate between client (4XX) and server (5XX) errors.It is a bit weird for
DICOMfileClientto raiserequests.HTTPError, because the client does not rely on HTTP. Ultimately, it would probably be nice to fully abstract the error handling logic via a custom exception class. However, that would break existing behavior of theDICOMwebClient. It's something we could consider for version 1.0.