In repo you can find files with GeoJSON encoded data with polygons describing shapes of Poland's voivodeships (pl: województwa).
Copy and paste the content into tools like this http://geojson.io/ to check if this is what you were looking for!
polska-wojewodztwa.geojson contains all Poland's voivodeships together.
The extract_voivodships.py script extracts each of polska-wojewodztwa.geojson voivodeships into separate file.
The script requires pip install geojson (https://pypi.org/project/geojson/)