Need python 3 expert

I need a python 3 expert who can explain this code -> https://github.com/vishnubob/silhouette/blob/a063f312021458323f44cde1922b12d568559d15/printsvg.py

I want to convert this python code to android, for this I must have to understand single line of code.

Only python experts bid

Thanks and regards Tushar verma