PySCHISM_tutorial Install mamba https://mamba.readthedocs.io/en/latest/installation.html Create a Python environment mamba create -n pyschism_tutorial python=3.9 Install pyschism package From PyPI using pip conda activate pyschism_tutorial pip install pyschism From source git clone https://github.com/schism-dev/pyschism.git cd pyschism pip install . Optional (replace cfgrib pip version with conda version) pip uninstall cfgrib conda install -c conda-forge cfgrib Generate input files git clone https://github.com/cuill/PySCHISM_tutorial.git cd PySCHISM_tutorial Download grid files mkdir data wget -O data/hgrid.gr3 http://ccrm.vims.edu/yinglong/Cui/PySCHISM_tutorial/hgrid.gr3 wget -O data/vgrid.in http://ccrm.vims.edu/yinglong/Cui/PySCHISM_tutorial/vgrid.in