[Bf-python] More Proposed API changes.

[Campbell Barton]

Agree that "blend" a little false since it imply's the data is in the 
current .blend file,

However its the best of a bad lot ;)
the data is still IN the blend file, just as a reference.

Blender does add library data into its local pool of data so I think its 
important we match this in the python API.

using the iterators for linking data could be realy nice!

    blend.groups.link("groupName", "//mylib.blend")
and
   blend.groups.append("groupName", "//mylib.blend")

link keeps the reference, whereas append dosnt, just like Blenders UI.


antont at kyperjokki.fi wrote:
> Lainaus Ed Blake <kitsune_e at yahoo.com>:
> 
>> I like the blend idea, but hate the name, Global is worse though imho.  What
> 
> it is an exciting development, indeed.
> 
> i think a key is how that is thought of w.r.t. to library data, i.e. other
> blends. the 'main' thinking makes sense, 'cause the data is there irrespectively
> of files. then again, there are differences too: library linked data is not
> editable in the same way. that is also a separate concern, but i think somehow
> related - perhaps even to what the 'main/global/blend/project' should be
> conceptualized as, dunno.
> 
>> is the highest level data block called in Blender?  That would probably be
> 
> no idea ..
> 
>> also like the idea of moving additional  blend file related attributes and
>> methods into a single submodule - maybe even file linking/appending?
> 
> yah, Library has many things but certainly worth thinking how those things could
> integrate to something new.
> 
>> ElementTree and/or some of the expat based XML parsers included :D
> 
> ElementTree is in py 2.5, right? (did it already come for 2.4?). how big would
> it be to ship bundled with Blender, if we want to use that for many things? then
> again there is e.g. lxml that also provides the ElementTree api on a diff
> backend with diff powers.
> 
> ~Toni
> 
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