[Neuroimaging] indexed access to gziped files

[paul mccarthy]

Howdy all,

Apologies for taking so long on this - I've been busy with my real work.
But I've managed to get my indexed gzip project to a useable state - check
it out here:

https://github.com/pauldmccarthy/indexed_gzip

I've tested it a fair bit via direct usage, but would like to add a bit
more test coverage. And I'd like to add some basic write support - a
function which writes out the full file, but re-builds the index as it does
so, so the file can then be re-opened, with fast random-access available
immediately.

Apart from that, it's ready to be used.

As far as nibabel integration goes, I'm not really sure if any changes to
nibabel are necessary - I think it would be perfectly reasonable to put the
onus on the user to manage their own file handle, and create their nibabel
images via a file map.

The only potential change that I think would be useful is the ability to
create an image directly from a file handle (instead of using
from_file_map). What does everybody think?

Cheers,

Paul

On 15 March 2016 at 01:58, Matthew Brett <matthew.brett at gmail.com> wrote:

> Hi,
>
> On Mon, Mar 14, 2016 at 2:12 PM, paul mccarthy <pauldmccarthy at gmail.com>
> wrote:
> > Hi Matthew,
> >
> > Thanks for clarifying the flieobj 'dance'!
> >
> > I had meant to ask you about cython - it looks like a good option (and is
> > recommended in the official docs -
> > https://docs.python.org/3/howto/cporting.html), so I'll look into it.
> > Perhaps the best way forward would be for me to drop the mailing list a
> line
> > when I've got something in a more useable state.
>
> That would be great.  Please feel free to ask for help with Cython, we
> have a lot of collective experience here on the list.
>
> Cheers,
>
> Matthew
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> Neuroimaging at python.org
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>
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