You're putting the carriage before the horse. People want to evaluate what it is they're getting into before they download it. If they can't understand the code examples, they won't get as far as downloading the module and looking at the docstring.

I understand why you had to use strings as code. I had two concerns about that. One, you didn't explain it - I had to figure it out on my own. And two, if a solution is supposed to make things cleaner, but ends up introducing warts like that... maybe it's not worth it. What you implemented is interesting, no doubt, but I wouldn't want to use it for that reason.

However, I think you would benefit greatly from having improved examples. Even if people don't use your module, they can still build on your ideas if it's well explained.