default error_reason messages

[imbolc]

Maybe also use constants of http.client module like: RESTError('BAD_REQUEST') or RESTError(RESTError.BAD_REQUEST)?

[popravich]

-1 for this.

error_reason message is not neccessarily the same as http response status reason.
RESTError message parameter is there to be able to give more application/context specific error description (eg: RESTError(400, "required parameter 'user_id' is missing")).
(aiohttp internally will set response status reason to 'Bad Request')

[imbolc]

Yes, but I think current empty message is not more informative :)

[popravich]

Yeap, but that's the problem of a developer raising RESTError without message.
I don't think that doubling the same message makes it more informative)