astropy
Bugfixes for data downloads in specutils analysis notebooks
CI is currently failing on both specutils analysis notebooks because a data file is assumed to exist when it does not. I've added lines to ensure that the necessary file download happens no matter when a given notebook runs.
Check out this pull request on 
See visual diffs & provide feedback on Jupyter Notebooks.
Powered by ReviewNB
![review-notebook-app[bot] avatar](https://avatars.githubusercontent.com/in/15474?v=4 "Published by a pub.dev verified publisher"){kind=small}
This PR will need to bump the pin on specutils after its next release (with https://github.com/astropy/specutils/pull/1156).
The specutils-related notebooks now pass the tests. The remaining failure is due to breaking changes in the photutils v2.0 release, which @larrybradley will be fixing shortly.