Get key with closest match* when accessing a dict item by key, otherwise return the 'first' key

closest_key_in_dict.py

class mdict(dict):
    def __missing__(self, key):
        keys = list(self.keys())
        return next(in_key for in_key in keys if key in in_key) or keys[0]


if __name__ == "__main__":
    item = mdict()

    item["abc"] = 123
    item["bcd"] = 25

    key = "ab"

    # print("dict", item)
    # print("key", key)

    print(item[key])