[Neuroimaging] [Nibabel] Intent to deprecate int64 NIfTI images

[JB Poline]

Hi Chris,

Do we have a sense of how much is broken in the wider community ? SPM is
matlab based but doesn't have this issue ?

Cheers
JB




On Fri, Feb 18, 2022 at 1:20 PM Christopher Markiewicz <
markiewicz at stanford.edu> wrote:

> Hi all,
>
> I want to bring everyone's attention to this issue:
> https://github.com/nipy/nibabel/issues/1089
>
> I will reproduce the reasoning here, but the issue includes the specific
> changes to the API and accompanying warnings:
>
> > 64 bit integer images are easy to generate in nibabel due to numpy
> semantics, but almost universally incompatible with non-Python tools. We
> must balance breaking existing Python scripts, the Python library
> ecosystem, and the wider neuroimaging ecosystem that uses NIfTI as an
> interchange format. Recognizing that we are currently contributing to
> breakage in the wider ecosystem, we have decided to deprecate 64-bit
> integer image creation except via explicit override.
>
> There will be a series of PRs, probably in the first half of March to
> implement these changes. A couple have already started.
>
> Please let us know what we can do to help make the transition as smooth as
> possible for any downstream libraries and ultimately, users.
>
> Happy to discuss the decision further, but please also see the discussion
> that led to this decision: https://github.com/nipy/nibabel/issues/1046
>
> Best,
> --
> Christopher J. Markiewicz, PhD
> Center for Reproducible Neuroscience
> Stanford University
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> Neuroimaging at python.org
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