Failed to GET /datasets in LangSmith API. 'VCRHTTPResponse' object has no attribute 'version_string'

[pedrorjbr]

On running the code in CI/CD github action, I am getting the error below. It happens in different test cases and eventually passes.

langchain==0.3.13
langchain-core==0.3.28
langchain-openai==0.2.14
langchain-pinecone==0.2.0
langchain-text-splitters==0.3.4
langgraph==0.2.60
langgraph-checkpoint==2.0.9
langgraph-checkpoint-postgres==2.0.9
langgraph-sdk==0.1.48
langsmith==0.2.6

self = Client (API URL: https://api.smith.langchain.com),/ method = 'GET'
pathname = '/datasets'
request_kwargs = {'headers': {'Accept': 'application/json', 'User-Agent': 'langsmith-py/0.1.115', 'x-api-key': 'lsv2_sk_..., 'params': {'limit': 1, 'name': 'ai_agents.tests.langgraph_agents.hand_off.test_hand_off'}, 'timeout': (10.0, 90.001)}
stop_after_attempt = 1, retry_on = None, to_ignore = None
handle_response = None, _context = ''
kwargs = {'params': {'limit': 1, 'name': 'ai_agents.tests.langgraph_agents.hand_off.test_hand_off'}}
logging_filters = [<langsmith.utils.FilterLangSmithRetry object at 0x7f0d85b77cd0>, <langsmith.utils.FilterPoolFullWarning object at 0x7f0d85b77ac0>]

    def request_with_retries(
        self,
        /,
        method: Literal["GET", "POST", "PUT", "PATCH", "DELETE"],
        pathname: str,
        *,
        request_kwargs: Optional[Mapping] = None,
        stop_after_attempt: int = 1,
        retry_on: Optional[Sequence[Type[BaseException]]] = None,
        to_ignore: Optional[Sequence[Type[BaseException]]] = None,
        handle_response: Optional[Callable[[requests.Response, int], Any]] = None,
        _context: str = "",
        **kwargs: Any,
    ) -> requests.Response:
        """Send a request with retries.
    
        Parameters
        ----------
        request_method : str
            The HTTP request method.
        pathname : str
            The pathname of the request URL. Will be appended to the API URL.
        request_kwargs : Mapping
            Additional request parameters.
        stop_after_attempt : int, default=1
            The number of attempts to make.
        retry_on : Sequence[Type[BaseException]] or None, default=None
            The exceptions to retry on. In addition to:
            [LangSmithConnectionError, LangSmithAPIError].
        to_ignore : Sequence[Type[BaseException]] or None, default=None
            The exceptions to ignore / pass on.
        handle_response : Callable[[requests.Response, int], Any] or None, default=None
            A function to handle the response and return whether to continue
            retrying.
        **kwargs : Any
            Additional keyword arguments to pass to the request.
    
        Returns:
        -------
                                f"Conflict for {pathname}. {repr(e)}" f"{_context}"
                            )
                        else:
                            raise ls_utils.LangSmithError(
                                f"Failed to {method} {pathname} in LangSmith"
                                f" API. {repr(e)}"
                            )
    
                    else:
                        raise ls_utils.LangSmithUserError(
                            f"Failed to {method} {pathname} in LangSmith API."
                            f" {repr(e)}"
                        )
                except requests.ConnectionError as e:
                    recommendation = (
                        "Please confirm your LANGCHAIN_ENDPOINT."
                        if self.api_url != "https://api.smith.langchain.com/"
                        else "Please confirm your internet connection."
                    )
                    try:
                        content_length = int(
                            str(e.request.headers.get("Content-Length"))
                            if e.request
                            else ""
                        )
                        size_rec = self._content_above_size(content_length)
                        if size_rec:
                            recommendation = size_rec
                    except ValueError:
                        content_length = None
    
                    api_key = (
                        e.request.headers.get("x-api-key") or "" if e.request else ""
                    )
                    prefix, suffix = api_key[:5], api_key[-2:]
                    filler = "*" * (max(0, len(api_key) - 7))
                    masked_api_key = f"{prefix}{filler}{suffix}"
    
                    raise ls_utils.LangSmithConnectionError(
                        f"Connection error caused failure to {method} {pathname}"
                        f" in LangSmith API. {recommendation}"
                        f" {repr(e)}"
                        f"\nContent-Length: {content_length}"
                        f"\nAPI Key: {masked_api_key}"
                        f"{_context}"
                    ) from e
                except Exception as e:
                    args = list(e.args)
                    msg = args[1] if len(args) > 1 else ""
                    msg = msg.replace("session", "session (project)")
                    if args:
                        emsg = "\n".join(
                            [str(args[0])]
                            + [msg]
                            + [str(arg) for arg in (args[2:] if len(args) > 2 else [])]
                        )
                    else:
                        emsg = msg
>                   raise ls_utils.LangSmithError(
                        f"Failed to {method} {pathname} in LangSmith API. {emsg}"
                        f"{_context}"
                    ) from e
E                   langsmith.utils.LangSmithError: Failed to GET /datasets in LangSmith API. 'VCRHTTPResponse' object has no attribute 'version_string'

[pedrorjbr]

This is causing the bug: kevin1024/vcrpy#888