[Pkg-exppsy-pynifti] [Nipy-devel] Data packaging, a proposal for feedback

[Gael Varoquaux]

Forgot to attach the file.

On Fri, Jul 24, 2009 at 10:11:18AM +0200, Gael Varoquaux wrote:
> On Thu, Jul 23, 2009 at 11:09:01PM -0700, Matthew Brett wrote:
> > Hi everyone,

> > Gael and Fernando and I have been struggling with data packaging, and
> > getting some useful feedback from our Debian friends (hello Michael,
> > hello Yarick).

> > We've thought for a while about this, and come up with the attached
> > proposal - formatted version here:

> > https://cirl.berkeley.edu/mb312/data_docs/

> In general it looks like a good programmer-level API. A few questions on
> how we will set things up so that they work out of the box for users
> (your document talks more about the way things are set up, then the way
> they are exposed to users):

>     - We should provide a default template and atlas environment, where
>       the default (or 'core') nipy data set gets installed.
>     - For this default data set, we should be able to retrieve files
>       really easily: 
> 	    - no repository instantiation
> 	    - sensible error management (of course this needs to be
> 	      defined based on experience)
> 	    - easy programmatic browsing of the available data 
> 	      (for example a method that returns a nested set of 
> 	      dictionnaries, or something. I attached an example).
> 	    - easy interactive browsing of the files (also in example
> 	      attached)
>     - I found through my interactions with users (at least French ones)
>       that the notion of repository was confusing. We should not have to
>       expose it to end users. However, this does not mean that the model
>       needs to change in any way, we could have the following API:

> 	from nipy import load_img, templates # Notice no 'repo'
> 	mni152t1 = load_img(templates.get('templates', '1mm', 'T1'))

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