Adjacency list creation from shapefiles

Constructing a list of neighboring regions from .shp files.

Example -- adjacency list of EU NUTS2 regions

shape file source: https://ec.europa.eu/eurostat/web/gisco/geodata/reference-data/administrative-units-statistical-units/nuts

shp_to_adjacency_list.ipynb
Python code to construct adjacency list of regions from the example shapefile.

map_visuals.ipynb
Python code to visualize an example -- se below.