Sparked by a reddit inquiry, I have added an example on my github to access the database table results using the ETABs API. The python code can be found on github.
The example code works to access the joint reaction database table results from ETABs v20.
In the image above, you can see that the python code pulls the correct vertical reaction when looking at the dead load reaction (3.177 kips). The python code returns results in pounds, but you can easily format your result units with
SapModel.SetPresentUnits(x). The ETABs API document gives a good run down on all the units available.