Code to simulate NIRISS/WFSS data. As of 2018, all scripts are in a state of active development and simulations may vary as a result. Maintained by the NIRISS branch.
Very specific versions of the following required packages and their dependencies are needed in order for the simulation code to run:
To ensure package compatibility, one solution is to create a separate conda environment for simulation work:
source deactivate
conda env create -f jwstsim_env.yaml -n jwstsim
source activate jwstsim
There is a known issue with pysiaf that can occur and gives the following error:
ImportError [...] Library not loaded: libxml2.2.dylib Reason: Incompatible library version: etree.[...] requires version 12.0.0 or later, but libxml2.2.dylib provides version 10.0.0
A stop-gap solution is to uninstall pysiaf and lxml and reinstall pysiaf with pip:
pip uninstall pysiaf
pip uninstall lxml
pip install pysiaf