webbpsf
WebbPSF is a simple tool for simulating point spread functions for the James Webb Space Telescope, inspired by TinyTim for Hubble.
It provides a relatively user-friendly interface for diffractive point spread function modeling for JWST in the Fraunhofer domain based on precomputed telescope models. Documentation can be found at http://www.stsci.edu/jwst/software/webbpsf
Developed by Marshall Perrin at STScI, 2010-2013.
These packages have been developed on Python 2.7 but not yet tested for Python 3 compatibility.