routing.py 文件源码

def closest_rule(self, adapter):
        def score_rule(rule):
            return sum([
                0.98 * difflib.SequenceMatcher(
                    None, rule.endpoint, self.endpoint
                ).ratio(),
                0.01 * bool(set(self.values or ()).issubset(rule.arguments)),
                0.01 * bool(rule.methods and self.method in rule.methods)
            ])

        if adapter and adapter.map._rules:
            return max(adapter.map._rules, key=score_rule)
        else:
            return None