Is there a shared binary format between iOS and Python? I found binary property lists. 
I have a list of UIBeziarPaths in an array that I want to be able to send to Python. I am just looking for something that will very efficiently be able to do that. I looked into the text based formats like JSON except they seem less efficient than a binary format for this purpose.
Python has a struct standard module that allows easy manipulation of simple binary formats with conversion to python types (struct.unpack) or in the opposite direction (struct.pack).
Shared binary format between iOS and Python