I tried to upgrade telepathy-python to the last spec release and it appeared that the code generation is broken with recent versions of the spec. For example the generated constants file only contains PROPERTY_FLAG_{READ,WRITE}. That's probably because the addition of tp:section which are not catched by the XSL files. I don't know anything about XSLT so I'll offer a beer to the one who'll fix this issue. :) See http://git.collabora.co.uk/?p=user/cassidy/telepathy-python;a=shortlog;h=refs/heads/upgrade-spec for a branch with the updated spec.
Should be fixed in http://git.collabora.co.uk/?p=user/cassidy/telepathy-python;a=shortlog;h=refs/heads/upgrade-spec thanks to Frederic Peters.
Fixed in master
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