Fresh Installation

WebbPSF

1. conda config --append channels http://ssb.stsci.edu/astroconda
2. conda install pysynphot poppy jwxml pysiaf
	- pysynphot 
	- poppy 
	- jwxml 
	- pysiaf 
3. conda update scikit-image --no-deps
4. conda install webbpsf --no-deps

JWST Background

1. conda config --append channels conda-forge
2. conda install pytest-runner --no-deps -c conda-forge
3. conda install healpy=1.11 --no-deps -c conda-forge
4. pip install jwst_backgrounds

Sphinx/RTD

1. pip install sphinx_automodapi
2. conda install sphinx_rtd_theme
3. conda install nbsphinx
4. conda install twine
5. conda install docutils=0.16
