[AstroPy] Problem querying NED with astropy
Shupe, David L.
shupe at ipac.caltech.edu
Sun Aug 18 11:18:37 EDT 2019
Thank you for your inquiry about using astroquery.ned. The astroquery package is not included with Anaconda, so there is an additional installation needed for it.
Following https://astroquery.readthedocs.io/en/latest/, since you have Anaconda installed, you can do “conda install -c astropy astroquery” to get a tagged release. Or, for the latest version you can instead do “pip install --pre astroquery”.
Please feel free to contact me off-list if you have further questions, or are otherwise having trouble with the module for NED.
On Aug 17, 2019, at 8:11 AM, Gordon Dennis <gordon.b.dennis at gmail.com<mailto:gordon.b.dennis at gmail.com>> wrote:
I want to use astropy on Windows 10 to query the NASA extragalactic database (NED), but I'm having a very frustrating time getting even the simplest things to work..
1. Installed Python36.
2. Tried pip install astropy.
Result - fatal error.
3. Tried 2 more times
4. I read that if you install Python36 using the Anaconda distribution, astropy is included, so:
5. I de-installed Python36 and …
6. … installed Anaconda
7. Ran the Spyder IDE (Spyder is loaded automatically with Anaconda), and tried this very simple code (it's actually an example I copied from the www.astropy.org<http://www.astropy.org/> , apart from the argument ‘NGC 1300’ which is one of the galaxies I’m studying):
from astroquery.ned import Ned
result_table = Ned.query_object("NGC 1300")
print(result_table) # an astropy.table.Table
Now you get the error message 'unable to import Ned'. So, I guess it’s seeing astropy but failing to recognize Ned. Obviously line 2 & 3 don’t get executed. If I run the line
from astroquery.ned import Ned in a windows command box and execute with Python36 I get the same result.
8. I assume (since the example above was copied from the astropy web site that ‘Ned’ with the uppercase ‘N’ is correct. I'm now 7 hours down and beginning to loose hope. What am I doing wrong/have missed or whatever?
Would greatly appreciate any steers you can give me.
p.s. yes I do have admin privileges; and my Windows 10 is fully updated.
+44(0)1934 838096 / +44(0)7774628110 / Skype: gordon.dennis
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