[PATCH] python/thread: always return a string in get_subject/authors

[David Bremner]

On Mon,  9 May 2011 09:06:34 +0200, Anton Khirnov <anton at khirnov.net> wrote:
> Now None is returned when those don't exist, which is inconvenient to
> deal with.

I'm not using the python bindings, but from a philosophical point of
view, this change makes me a bit uncomfortable since it apparently
merges two cases together, and makes an error (no Subject)
indistinguishable from an odd situation (Subject of empty string).
Or am I missing something here?

All the best,

David