unclecode/crawl4ai · error · AttributeError

{self.__class__.__name__} object has no attribute '{attr}'

Error message

{self.__class__.__name__} object has no attribute '{attr}'

What it means

Error "{self.__class__.__name__} object has no attribute '{attr}'" thrown in unclecode/crawl4ai.

Source

Thrown at crawl4ai/models.py:315

    def __iter__(self):
        return iter(self._results)

    async def __aiter__(self):
        for item in self._results:
            yield item

    def __getitem__(self, index):
        return self._results[index]

    def __len__(self):
        return len(self._results)

    def __getattr__(self, attr):
        # Delegate attribute access to the first element.
        if self._results:
            return getattr(self._results[0], attr)
        raise AttributeError(f"{self.__class__.__name__} object has no attribute '{attr}'")

    def __repr__(self):
        return f"{self.__class__.__name__}({self._results!r})"

RunManyReturn = Union[
    CrawlResultContainer[CrawlResultT],
    AsyncGenerator[CrawlResultT, None]
]


# END of backward compatibility code for markdown/markdown_v2.
# When removing this code in the future, make sure to:
# 1. Replace the private attribute and property with a standard field
# 2. Update any serialization logic that might depend on the current behavior

class AsyncCrawlResponse(BaseModel):
    html: str
    response_headers: Dict[str, str]

View on GitHub (pinned to 7e80152142)

Solutions

1. Check the attribute name for typos against the model's defined fields.
2. Upgrade code that references removed/renamed attributes to the current model API.

Example fix

getattr(result, 'markdown')  # use a valid attribute

When it happens

Trigger: Thrown at crawl4ai/models.py:315 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of unclecode/crawl4ai@7e80152142 (2026-08-14). Data as JSON: /api/errors/7753f03187727178. Report an issue: GitHub.