[Python知识库] Python+获取字典中某一个键的值

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[Python知识库]Python+获取字典中某一个键的值

class GetResponsePara():
    # 获取字典中的某一个键的值
    def dict_get(self, dic, locators, default=None):
        if not isinstance(dic, dict) or not isinstance(locators, list):
            return default
        value = None
        for locator in locators:
            if not type(value) in [dict, list] and isinstance(locator, str) and not self.can_convert_to_int(locator):
                try:
                    value = dic[locator]
                except KeyError:
                    return default
                continue
            if isinstance(value, dict):
                try:
                    value = self.dict_get(value, [locator])
                except KeyError:
                    return default
                continue
            if isinstance(value, list) and self.can_convert_to_int(locator):
                try:
                    value = value[int(locator)]
                except IndexError:
                    return default
                continue
        return value

    def can_convert_to_int(self, input):
        try:
            int(input)
            return True
        except BaseException:
            return False


    ## 获取字典中的某一个键的值(只支持结果是唯一值)
    def get_para2(self):
        response = {"statusCode": 0, "message": "success", "data": {"token": {"session": [8888888]}, "onlyUser": 2}}
        key = 'session'
        path = 'data.token.session'
        output = path.split('.')
        for m in output:
            if key in response:
                print('==========', response[key])
                return response[key]
            response = response[m]


if __name__ == '__main__':
    p = GetResponsePara()
    dict_test = {"result": {"code": "110002", "msg": [{'status': 'ok'}, {'status': 'failed'}]}}
    result = p.dict_get(dict_test, ['result', 'msg', '1', 'status'])
    print(result)
    dict_test = {"statusCode": 0, "message": "success", "data": {"token": "2C8A41292D428", "onlyUser": 2}}
    result = p.dict_get(dict_test, ['data', 'token'])
    print(result)
    p.get_para2()