STWCS provides support for WCS distortion models and coordinate transformation for the imaging instruments on the Hubble Space Telescope (HST).
Starting with version 1.4, STWCS requires Python 3.5 and above.
To clone the project from github:
git clone https://github.com/spacetelescope/stwcs.git
To install:
python setup.py install