This package needs to be installed alongside quantumsim, which can be found at https://github.com/brianzi/quantumsim.
The following set of commands will install both packages on linux (beginning in your favourite directory to store git repos):
git clone https://github.com/quantumsim/quantumsim
git clone https://github.com/quantumsim/qsoverlay
cd quantumsim
pip install -e .
cd ../qsoverlay
pip install -e .
This work is distributed under the GNU GPLv3. See LICENSE.txt. (c) 2017 Tom O'Brien