How to retrieve specific load data from psse with python

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I am trying to write a program to open a myriad of different .sav cases and output AUX loads for specific busses to and excel/csv. I have dug through the API and the only function that I have found that might give me a solution is the alodbuscplx(.......) function. However, this returns an array of all the buses for a subsystem, not a single bus load. Does anyone have any ideas of how to get around this. Thanks in advance. :)