countyLayer = QgsVectorLayer(countySHP, "County_Layer", "ogr")
QgsMapLayerRegistry.instance().addMapLayer(countyLayer)

table = QgsVectorLayer(inputFile, "table", "delimitedtext")
QgsMapLayerRegistry.instance().addMapLayer(table)

processing.runandload('qgis:joinattributestable', countyLayer, table, 'AFFGEOID', 'GEO_ID','memory:layer')
joinedLayer = QgsMapLayerRegistry.instance().mapLayersByName('memory:layer')[0]

table = QgsVectorLayer(inputFile, "table", "ogr")