Problem with py27-astropy at 2.0.10

mf2k at mf2k at
Mon May 20 15:46:40 UTC 2019

> On May 20, 2019, at 2:05 AM, Sean Lake <odysseus9672 at> wrote:
> I'm running into a problem using py27-astropy. Two of the modules in
> astropy are for opening an image file format called "fits"
> ( and parsing the coordinate system of the image to
> and from the celestial sphere (astropy.wcs). When I attempt to use the
> modules, however, I'm getting a segmentation fault. Here's example
> code to produce the problem (you'll need a fits file of your own to
> replicate it):
> Seans-Work-Macbook-Pro:ExtinctionMaps sean$ python2.7
> Python 2.7.16 (default, Apr  1 2019, 14:50:41)
> [GCC 4.2.1 Compatible Apple LLVM 10.0.1 (clang-1001.0.46.3)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import astropy.wcs as pywcs
>>>> import as pf
>>>> f ="ExampleFile.fits")
>>>> pywcs.WCS( f[0].header )
> Segmentation fault: 11
> I also have py36-astropy installed, so there may be a problem with the
> underlying library astropy uses to parse the world coordinate system
> (wcs), wcslib. I tried to run
> port upgrade --force py27-astropy
> under that assumption, and it didn't help.
> The reason I'm trying to get py27-astropy working is because I have
> many legacy scripts that would be a pain in the tuchus to update for
> working with python 3.6.
> If you need me to produce a fits file to assist with the debugging,
> let me know. The "Example.fits" file is only 78KB.

This issue is basically covered in the existing Trac ticket: <>

The maintainer is not responding. Hopefully someone will jump in and debug and fix the problem. 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the macports-users mailing list