# Use weekly astropy dev build
--extra-index-url https://pypi.anaconda.org/astropy/simple astropy --pre

# Use Bi-weekly numpy/scipy dev builds
--extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
numpy>=0.0.dev0
scipy>=0.0.dev0

# Other important upstream packages
git+https://github.com/spacetelescope/stsci.tools
