Create Python operations to work with executor

Create operations and handlers which can execute python that get run by an executor.

It must execute python using a users credentials, ideally in a containerised or lambda environment. There should be a way for certain users to install python libraries for all users to use in their scripts.

There should be a way of users storing, sharing and executing scripts.

It would be nice if there was an easy way of executing other operations on the same executor.