Answers

1. We initially must get Python from the GIL. We then must build a PyDict struct in order to store and pass Python variables between Python executions. We then define the Python code as a string literal and pass this into our py.eval function with our PyDict storage.
2. We must make sure that we get Python from the GIL. We then use this to run the py.eval function with the import line of code passed in as a string literal. We must remember to pass in our PyDict storage to ensure that we can reference the module in the future.
3. We must remember that Python code returns a PyAny struct, which we can extract using the following code:

   let code = "5 + 6";
   let result = py.eval(code, None, Some(&locals)).unwrap();
   let number = result.extract::<i32>().unwrap();

   We can see that number should be 11.

4. This is because the Python versions must keep stopping to clean up variables with the garbage collection mechanism.
5. It would be slightly slower. This is because...