[AstroPy] SpecViz and SpecUtils

[Nicholas Earl]

Hi Nic,

Specutils hasn't had a 'core' module in several versions, and it looks like you're attempting to install SpecViz v0.3.0 (where as the current version is 0.7.0). How are you attempting to install SpecViz (through anaconda, pip, or from source)?

Cheers,
Nick

On Mon, Sep 2, 2019, at 8:53 AM, Nicholas Ross wrote:
> Dear All, 
> 
> I’m keen to starting using SpecViz and SpecUtils in my research analyses. 
> I’ve followed the instructions at
> 	https://specviz.readthedocs.io/en/stable/installation.html
> 
> but when I come to run specviz on the command line, I get::
> 
> > specviz
> Traceback (most recent call last):
>   File "/Library/Frameworks/Python.framework/Versions/3.7/bin/specviz", 
> line 11, in <module>
>     load_entry_point('specviz==0.3.0', 'console_scripts', 'specviz')()
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 489, in load_entry_point
>     return get_distribution(dist).load_entry_point(group, name)
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2793, in load_entry_point
>     return ep.load()
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2411, in load
>     return self.resolve()
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2417, in resolve
>     module = __import__(self.module_name, fromlist=['__name__'], 
> level=0)
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/specviz-0.3.0-py3.7.egg/specviz/__init__.py", line 17, in <module>
>     from . import analysis
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/specviz-0.3.0-py3.7.egg/specviz/analysis/__init__.py", line 3, in <module>
>     from .statistics import *
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/specviz-0.3.0-py3.7.egg/specviz/analysis/statistics.py", line 10, in <module>
>     from ..core.data import Spectrum1DRef
>   File 
> "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/specviz-0.3.0-py3.7.egg/specviz/core/data.py", line 15, in <module>
>     from specutils.core.generic import Spectrum1DRef
> ModuleNotFoundError: No module named ‘specutils.core'
> 
> However(!!) if I then do: 
> 	> ipython 
> 	In [1]: import specutils.core as core                                  
>                                                                         
>                                                                         
>                               
> 	WARNING: AstropyDeprecationWarning: astropy.extern.six will be removed 
> in 4.0, use the six module directly if it is still needed 
> [astropy.extern.six]
> 	In [2]: from specutils.core.generic import Spectrum1DRef               
>                                                                         
>                                                                         
>                              
> 	In [3]:  
> 
> 
> — it definitely seems as if I have specutils installed. 
> 
> Do we know what might be going on here??!!
> 
> Many thanks as usual, 
> Nic
> 
> 
> ====================================
>   Dr. Nicholas P. Ross
>   STFC Ernest Rutherford Fellow
>   Institute for Astronomy
>   University of Edinburgh
>   Royal Observatory, Blackford Hill 
>   Edinburgh EH9 3HJ, United Kingdom
>   +44 (0)131-668 8351
>   d80b2t.github.io
> ====================================
> 
> 
> 
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