On Mon, 09 May 2011 09:20:41 -0300, David Bremner <david at tethera.net> wrote:
> 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?

The question is whether this is really a problem.

For a single message, it might make sense to distinguish between 'no
header' and 'empty header'.

But those aren't message headers, those are thread properties. And I'd
argue that a thread always has authors and a subject (possibly empty).

Anton Khirnov

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