Marshall's Astronomical Software in Python

Various publicly-released open source codes can be found at my GitHub page. In particular:

• WebbPSF, a PSF simulation tool for the James Webb Space Telescope
• POPPY, a library for Physical Optics Propagation in Python.
• cartesiancoords, a library for transforming vectors, positions, and rotations between various rectilinear coordinate systems.

I also have plenty of code that's not yet been released into the wild:

• Tools for working with Gemini Planet Imager data (unofficial/not part of the supported IDL data pipeline)
• Various utility tools for pysynphot, such as plotting and automated SED model fitting.
• pysynpol, a package for synthetic polarimetry and modeling instrumental polarization, built on top of pysynphot.
• A wrapper for accessing MySQLDB database tables and converting the results into numpy recarrays

There's a fairly extensive list of astronomy-related modules at the SciPy astronomy page, and an even more extensive list over at this page.