Script that generates a SquareMap out of label:value pairs.

Similar to: https://en.wikipedia.org/wiki/Economy_of_Kazakhstan#/media/File:Kazakhstan_Export_Treemap.jpg

Example:

python ratiomap.py Petrolium:56 "Petrolium Gases:4.6" Gold:1.7 Radioactive:3.9 Ferroalloys:3.2 Copper:3.8 Silver:0.67 Iron:2.3