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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 classify(self, url_path):
 """Classify an url"""

        for dict_api_url in self.user_defined_rules:
            api_url = dict_api_url['str']
            re_api_url = dict_api_url['re']
            if re_api_url.match(url_path[1:]):
                return api_url

        return self.RE_SIMPLIFY_URL.sub(r'(\\d+)/', url_path)