alueet.py

#!/usr/bin/env python3
from pprint import pprint
with open('alueet.gmp') as file:
	data = file.read()

shapes = {}
polygons = data.split('@')[1]
for polygon in polygons.splitlines():
	polygon = polygon.split('^')
	nimi = polygon[2].rsplit('>', 1)[1]
	coordinates = []
	for point in polygon[3].split('~'):
		x, y = point.split(',')
		coordinates.append((float(x), float(y)))
	shapes[nimi.strip().replace('\u200b', '')] = coordinates

pprint(shapes)