load in tmp_{col}.py on first run IF there are no changes to the originating module.

[hearnderek]

How to tell if there was a change to the file:

Hacky Idea 1:

When generating python file

1. Generate MD5 hash of the user module. (only imagining a single file)
2. Place hash into generated flat script as a standard string variable user_module_hash.

When initializing engine

1. search for matching flat script within working directory
2. Generate MD5 hash of the user module.
3. test user_module_hash against generated hash
4. if match use flat script
5. if not match ignore flat script

Adjacent Idea 1:

Once we start generating these files, it would be nice to have a central place to keep them, and have them out of the way for user.
Store flat file in a sqlite database, with it's hash, create date, etc.
Alternatively we could store the files in a zipfile which acts as a document store.
This then means we have a place to store our results as well. (Which then I would want to look into optimizing writes to sqlite)

[hearnderek]

Need to consider what optimization option is being used. AKA optimization should be decided on engine init.