IronPython Embeddied .NET 4.0, how to transfer object from C# into Ironpython and back again

Question

I have embedded IronPython between C# (NET4) and Ironpython (using dynamic), I learning how to use it (for data logging and test purpose)

I have dictionary<T> containing simple implementation String and INT, ie "XDATA:76 , YDATA:34, ZDATA:23, RESULT1:00, RESULT2:00" that is declared in C# as an instance object. It can be inside a class. 

I also have ironpython code with reference class (or instance object) of same structure. 

(1) How to pass the reference  from C# to Python code, is this possible (not sure if this is the case)

(2) How to copy the object from C# to Python code.

After copy the data, the Python process the data and insert the results RESULT1, RESULT2, RESULT3

(3) How to return the multiple variable result back to C#, can Python pass dictionary class as object to C#(rather than value)?

A demo program would really be useful. The Python.py must be a filename.

Thanks