The goal is to produce a brief and informative paper that covers major astropy principles not mentioned in the first paper, the core v2.0 package, and infrastructure in the astropy project to support development in python.

The draft of the paper can be found here.

• We don't plan on including code in this paper, but if you think you will need to include code in your section, please add it to a separate python module (.py file) and include it in this repository.
• Use \sectionname not Section, \figurename not Figure
• Use \astropypkg for the astropy package, \astropy for the astropy project, \python not Python
• If your subpackage was included in Paper I, then please just include a note on what the package does, a reference to paper I, and any new major updates to your package
• If your subpackage was not included, then please describe the subpackage on level with what was in the first paper, and highlight any major features in it. Typical length should be equivalent to one page (single-column).

The paper will be submitted to the software section of the Astrophysical Journal.

We would like you to become a co-author if any of the following applies to you:

You have an official role in the project, as defined on http://www.astropy.org/team.html
You have contributed code to the core package
You have contributed to one of the following pieces of infrastructure:
    Astropy-helpers
    Package-template
    Ci-helpers
    Sphinx-automodapi
    astropy tutorial
    Website
You have contributed to one of the following ‘core’ affiliated packages (packages planned and developed by the Astropy core team for key functionality that may be merged into core in the future):
    Photutils
    Specutils
    Regions
    Reproject
    ccdproc

If you would like to be a co-author, please complete the form here. If the above does not apply to you but you feel that you should still be considered for co-authorship, please complete the form and your application will be reviewed.

Authorship will be contributors to the paper in order of contribution followed by an alphabetical list of contributors to the astropy project.