Function iter_errback

scrapy/utils/defer.py:345–361

Wrap an iterable calling an errback if an error is caught while iterating it.

(
    iterable: Iterable[_T],
    errback: Callable[Concatenate[Failure, _P], Any],
    *a: _P.args,
    **kw: _P.kwargs,
)

def iter_errback(
    iterable: Iterable[_T],
    errback: Callable[Concatenate[Failure, _P], Any],
    *a: _P.args,
    **kw: _P.kwargs,
) -> Iterable[_T]:
    """Wrap an iterable calling an errback if an error is caught while
    iterating it.
    """
    it = iter(iterable)
    while True:
        try:
            yield next(it)
        except StopIteration:
            break
        except Exception:
            errback(failure.Failure(), *a, **kw)


async def aiter_errback(