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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def handle_default_options(options):
 """ Pass in a Values instance from OptionParser. Handle settings and pythonpath options - Values from OptionParser """

    if options.settings:
        #Set the percept_settings_module (picked up by settings in conf.base)
        os.environ['PERCEPT_SETTINGS_MODULE'] = options.settings
    if options.pythonpath:
        #Append the pythonpath and the directory one up from the pythonpath to sys.path for importing

        options.pythonpath = os.path.abspath(os.path.expanduser(options.pythonpath))
        up_one_path = os.path.abspath(os.path.join(options.pythonpath, ".."))
        sys.path.append(options.pythonpath)
        sys.path.append(up_one_path)
    return options