Selecting Internal Face in Python (ABAQUS)

Hello, I am attempting to automate an ABAQUS simulation with a Python script. The issue is that I am not able to select the internal face seen in the image in order to define a set on this face. The internal face is generated by partitioning a cylinder using the (working) code below. In the GUI I must toggle 'Select from Interior Entities' to be able to select the internal face. Attempts at using 'getByBoundingBox' have not been successful. 

 

p = mdb.models['Model-1'].parts['PART-NAME']
p.DatumPlaneByPrincipalPlane(principalPlane=XYPLANE, offset=OFFSET)
f = p.faces
pickedFaces = f.getSequenceFromMask(mask=('[#1 ]', ),)
d1 = p.datums
p.PartitionFaceByDatumPlane(datumPlane=d1[4], faces=pickedFaces)
c = p.cells
pickedCells = c.getSequenceFromMask(mask=('[#1 ]',),)
d = p.datums
p.PartitionCellByDatumPlane(datumPlane=d[4], cells=pickedCells)

 


Abaqus CAEPythonset