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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 pretty(self):
        "sort values and format output for viewing and comparing in test scenarios"
        pretty_obj = OrderedDict()
        for key, value in sorted(iteritems(self.__dict__)):
            if value is None:
                pretty_obj[key] = None
            elif is_str_or_unicode(value):
                pretty_obj[key] = self.__dict__.get(key)
            elif isinstance(value, list):
                pretty_obj[key] = []
            elif isinstance(value, dict):
                pretty_obj[key] = {}
            else:
                pretty_obj[key] = unicode_value(value)
        return pretty_obj