That’s totally incorrect. .pyc files just contain a representation of the _code_ and not any values that don’t exist in the code. So a snippet like “os.environ

That’s totally incorrect. .pyc files just contain a representation of the _code_ and not any values that don’t exist in the code. So a snippet like “os.environ[‘my_super_secret’]” won’t contain anything else than the bytecode to fetch that environment variable.