mirror of
https://github.com/scrapy/scrapy.git
synced 2025-02-25 12:43:41 +00:00
63 lines
1.2 KiB
ReStructuredText
63 lines
1.2 KiB
ReStructuredText
.. _topics-exceptions:
|
|
|
|
==========
|
|
Exceptions
|
|
==========
|
|
|
|
.. module:: scrapy.core.exceptions
|
|
:synopsis: Core exceptions
|
|
|
|
.. _topics-exceptions-ref:
|
|
|
|
Built-in Exceptions reference
|
|
=============================
|
|
|
|
Here's a list of all exceptions included in Scrapy and their usage.
|
|
|
|
DropItem
|
|
--------
|
|
|
|
.. exception:: DropItem
|
|
|
|
The exception that must be raised by item pipeline stages to stop processing an
|
|
Item. For more information see :ref:`topics-item-pipeline`.
|
|
|
|
HttpException
|
|
-------------
|
|
|
|
.. exception:: HttpException
|
|
|
|
This exception is raised by the downloader when a non-200 response has been
|
|
downloaded.
|
|
|
|
IgnoreRequest
|
|
-------------
|
|
|
|
.. exception:: IgnoreRequest
|
|
|
|
This exception can be raised by the Scheduler or any downlaoder middleware to
|
|
indicate that the request should be ignored.
|
|
|
|
NotConfigured
|
|
-------------
|
|
|
|
.. exception:: NotConfigured
|
|
|
|
This exception can be raised by some components to indicate that they will
|
|
remain disabled. Those component include:
|
|
|
|
* Extensions
|
|
* Item pipelines
|
|
* Downloader middlwares
|
|
* Spider middlewares
|
|
|
|
The exception must be raised in the component constructor.
|
|
|
|
NotSupported
|
|
------------
|
|
|
|
.. exception:: NotSupported
|
|
|
|
This exception is raised to indicate an unsupported feature.
|
|
|