Mike is working on a Python InstrumentationManifest, which is a list of what events should be instrumented and where, in the Python VM. He writes:
I am still working on instrumenting expression events, but it's pretty slow going so far. I have also started work on instrumenting structure events, and have found sensor points for E_Lcreate, E_Ldelete, E_Tcreate, and E_Tdestroy. I plan to continue working in both areas simultaneously.