Define and execute standard messaging/error reporting pattern

[mih]

SpecialRemote.meassage() maybe? @bpoldrack ?

[bpoldrack]

Actual errors should be exceptions if suitable, I think. TheSpecialRemote is taking care of turning them into ERROR messages to annex. This allows to also get a traceback not just a single message.

Otherwise, yes: That's what SpecialRemote.message() is for. Note, that if you actually send an type=error message, this is supposed to end the process IIRC. Hence, exception is also more intuitive when reading the code.

[mih]

ok, thx. I don't think getting tracebacks is desirable in standard cases. For example, authentication is invalid: I would want to get a clear message saying exactly that, not a traceback.

[mih]

This issue still require someone to check the code base an confirm a homogeneous and valid messaging pattern to be used.