This is a package that aims to simplify the coding involving Grassmann tensor network. I try to make the coding as convenient as when you use other standard packages like numpy or scipy. All the sign factors are computed automatically without explicit user inputs.
pip install grassmanntn
Once the package is installed, download example.py and try running it with
python3 example.py --show_progress
An example code of a one-flavor two-dimensional
Please see documentation.