[AstroPy] Healpy

Paul Kuin npkuin at gmail.com
Fri Oct 2 19:55:49 EDT 2015


good point. I'll talk to some people.

On Sat, Oct 3, 2015 at 12:49 AM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> Healpy, like the healpix library itself is licensed GPLv2, which is
> incompatible with astropy's BSD license.
>
> As far as I understand the GPL's linking clause, if astropy imported
> healpy, the astropy package would need to be released under a GPLv2
> license. Of course that doesn't stop anyone from making a GPL licensed
> supplementary package that monkey patches astropy to include features from
> healpy, but it can never be part of the main astropy distribution without
> relicensing.
>
> The healpix license was chosen a long time ago. I doubt they would have
> predicted the dominance of non-copy left free software licenses
> today. Given the current state of the scientific Python ecosystem (and
> really scientific computing in general), healpix would likely get more
> real-world use if it were relicensed. I'm sure that would be a lot of work
> and would not only involve getting the appropriate people at NASA on
> board but maybe also the original authors of healpix.
>
> On Friday, October 2, 2015, Paul Kuin <npkuin at gmail.com> wrote:
>
>> I second that.
>>
>>
>> On Fri, Oct 2, 2015 at 11:46 PM, Emil Lenc <elenc at me.com> wrote:
>>
>>> Hi All,
>>>
>>> I was wondering if there were any plans to incorporate healpy (the
>>> python interface to the HEALPIX library) into astropy? I often work between
>>> HEALPIX and FITS format images and it would be really convenient to have
>>> these two common formats available within the same package.
>>>
>>> Cheers,
>>>
>>> Emil.
>>> _______________________________________________
>>> AstroPy mailing list
>>> AstroPy at scipy.org
>>> https://mail.scipy.org/mailman/listinfo/astropy
>>>
>>
>>
>>
>> --
>>
>> * * * * * * * * http://www.mssl.ucl.ac.uk/~npmk/ * * * *
>> Dr. N.P.M. Kuin      (n.kuin at ucl.ac.uk)
>> phone +44-(0)1483 (prefix) -204927 (work)
>> mobile +44(0)7806985366  skype ID: npkuin
>> Mullard Space Science Laboratory  – University College London  –
>> Holmbury St Mary – Dorking – Surrey RH5 6NT–  U.K.
>>
>
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>


-- 

* * * * * * * * http://www.mssl.ucl.ac.uk/~npmk/ * * * *
Dr. N.P.M. Kuin      (n.kuin at ucl.ac.uk)
phone +44-(0)1483 (prefix) -204927 (work)
mobile +44(0)7806985366  skype ID: npkuin
Mullard Space Science Laboratory  – University College London  –
Holmbury St Mary – Dorking – Surrey RH5 6NT–  U.K.
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