At the moment, it is not possible to safely define a custom exception class via PyO3 that will expose some Rust struct fields as Python-side instance attributes.

The solution is to add an intermediate Python module that will wrap validate, catch the underlying exception, and re-raise it via a different class.

from . import jsonschema_rs as rs


is_valid = rs.is_valid
JSONSc

It seems that the typing module doesn't flatten nested literal type definitions, so the following does not currently work:

SuccessStatus = Literal[200, 201, 204]
ClientError = Literal[404, 401, 403, 409, 400]
ServerError = Literal[500, 504, 503]

@dataclass
class HttpResponse(JsonSchemaMixin):
    status: Literal[SuccessStatus, ClientError, ServerError]
    ...

留贴为证

Right now the default/docs version of the public consumer just prints out all of each message to stdout. This is nice, but it would be nice if there was something like fedmsg --terse where it just prints out a small subset to give you an idea of the message. This way you can see a lot more info, and can actually run it to watch what all is going on in fedora.

~ fedmsg-tail-3 --terse
[2019-04-1