This package consists of Python replacements for functions that are part of the IDL® built-in library or part of astronomical IDL® libraries. The emphasis is on reproducing results of the astronomical library functions. Only the bare minimum of IDL® built-in functions are implemented to support this.

There are four astronomical libraries targeted:

• idlutils : a general suite of tools heavily used by SDSS.
• Goddard utilities : The IDL® Astronomy User's Libary, maintained by Wayne Landsman and distributed with idlutils.
• idlspec2d : tools for working with SDSS, BOSS and eBOSS spectroscopic data.
• photoop : tools for working with SDSS imaging data.

This package affiliated with the astropy project and is registered with PyPI.

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This package was initially developed on the SDSS-III svn repository. It was moved to the new GitHub repository on 2013-03-06. The present location of the repository is http://github.com/weaverba137/pydl .

PyDL is free software licensed under a 3-clause BSD-style license. For details see the licenses/LICENSE.rst file.

• IDL is a registered trademark of Exelis Visual Information Solutions.