QUERY = {id: '1234'}
try:
    record = mongoCollection.find_one(QUERY)
    if record is None:
        print 'Add new Record'
    else:
        updateResult = mongoCollection.update_one(
            QUERY,
            {'$addToSet': {'info': getInfo()}}
        )

        if updateResult['modified_count'] == 1:
            mongoCollection.update_one(
                QUERY,
                {'$inc': {'infoCount': 1}}
            )
        print 'Record exists, updating if needed'
except:
    print 'Failed to add/update'