You will need to run the previous recipe because its output is required for this one. I have a small library to help with basic data conversion and charting. You can find this code at https://github.com/tiagoantao/pygenomics, and you can install it with pip:
pip install pygenomics
Note that at this stage, we will not use the Genepop application (this will change in the next recipe), so no need to install it for now.
As usual, this is available in the Chapter04/Genepop_Format.ipynb Notebook file, but it will still require you to run the previous Notebook file in order to generate the required files.