[AstroPy] Help needed - Pix2Sky error

[Erik Bray]

On 09/10/2015 02:05 PM, Christian Johnson wrote:
> Hi all,
>
> (if this is the wrong list to use for questions like this, please let me know!)
>
> I'm attempting to use astropy to get data out of a FITS file in the Aitoff
> projection, and was trying to use the astropy.modeling.projections.Pix2Sky_AIT
> class (that I found here:
> http://astropy.readthedocs.org/en/latest/modeling/index.html). However, when I

For what it's worth, the docs labeled "latest" are documentation for the most 
recent development version.  The most recent released version is at 
http://astropy.readthedocs.org/en/stable, which is also what you get if you go 
directly to http://docs.astropy.org

You can see this difference also in the top-left corner where on "stable" it 
currently reads "Astropy v1.0.4", while on "latest" it reads "Astropy 
v1.1.dev13387".

The more I think about it though the less happy I am with this nomenclature.  I 
think it's non-obvious that "latest" should be distinct from "stable".  I'd 
rather it were called "dev" or something like that.  Unfortunately the name is 
given by readthedocs itself and doesn't seem changeable.  I'll poke them to see 
if they'd be willing to make the "latest" docs be renameable.  Might be an easy 
patch, even...

Erik

> try to use it, I get an error that there is no module of that name
> ("AttributeError: 'module' object has no attribute 'Pix2Sky_AIT'"). I can
> successfully import astropy.modeling.projections.Projection or
> astropy.modeling.projections.Zenithal or a few others, but most throw this error.
>
> Is there something I'm doing wrong, or does some other package need to be
> installed for these modules to work correctly?
>
> Thanks in advance,
> Christian Johnson
>
>
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