common.py 文件源码

def _get_entity_recursive(json, entity):
    if not json:
        return None
    elif isinstance(json, dict):
        for key, value in json.items():
            if key == entity:
                return value
            # 'entities' and 'extended_entities' are wrappers in Twitter json
            # structure that contain other Twitter objects. See:
            # https://dev.twitter.com/overview/api/entities-in-twitter-objects

            if key == 'entities' or key == 'extended_entities':
                candidate = _get_entity_recursive(value, entity)
                if candidate is not None:
                    return candidate
        return None
    elif isinstance(json, list):
        for item in json:
            candidate = _get_entity_recursive(item, entity)
            if candidate is not None:
                return candidate
        return None
    else:
        return None