You must have Python 3.8, or later, installed. On Windows, the simplest option is to use Anaconda. By default, it will install all of the required packages except tomli and tomli-w.

You can install pypfilt with pip. This is best done in a virtual environment. It will also install any required packages that are not currently installed.

Install pypfilt without plotting support:
pip install pypfilt
Install pypfilt with plotting support:
pip install pypfilt[plot]