Selling McAfee Bittrex bot- This bot allows users to automatically purchase a coin via Bittrex when the official Mcafee (@officialmcafee) account tweets about it. this is based on McAfee's tweet saying he will shill a coin everyday and the previous gains made to each coins based on that (burst + 150%, dgb + 150%, etc etc)
Python by its nature is open source, its usually distributed as .py, and even the compiled .pyc files are decompilable. The seller would have to go through additional measures to obfuscate the code.