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Fix internal links in the tutorial and release notes
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@ -78,9 +78,9 @@ Our first Spider
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Spiders are classes that you define and that Scrapy uses to scrape information
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from a website (or a group of websites). They must subclass
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:class:`scrapy.Spider` and define the initial requests to make, optionally how
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to follow links in the pages, and how to parse the downloaded page content to
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extract data.
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:class:`~scrapy.spiders.Spider` and define the initial requests to make,
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optionally how to follow links in the pages, and how to parse the downloaded
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page content to extract data.
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This is the code for our first Spider. Save it in a file named
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``quotes_spider.py`` under the ``tutorial/spiders`` directory in your project::
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@ -71,7 +71,7 @@ New features
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~~~~~~~~~~~~
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* A new scheduler priority queue,
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:class:`scrapy.pqueues.DownloaderAwarePriorityQueue`, may be
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``scrapy.pqueues.DownloaderAwarePriorityQueue``, may be
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:ref:`enabled <broad-crawls-scheduler-priority-queue>` for a significant
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scheduling improvement on crawls targetting multiple web domains, at the
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cost of no :setting:`CONCURRENT_REQUESTS_PER_IP` support (:issue:`3520`)
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@ -150,9 +150,9 @@ Bug fixes
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:setting:`AWS_REGION_NAME`, :setting:`AWS_USE_SSL`, :setting:`AWS_VERIFY`
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(:issue:`3625`)
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* Fixed a memory leak in :class:`~scrapy.pipelines.media.MediaPipeline`
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affecting, for example, non-200 responses and exceptions from custom
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middlewares (:issue:`3813`)
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* Fixed a memory leak in ``scrapy.pipelines.media.MediaPipeline`` affecting,
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for example, non-200 responses and exceptions from custom middlewares
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(:issue:`3813`)
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* Requests with private callbacks are now correctly unserialized from disk
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(:issue:`3790`)
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@ -301,7 +301,7 @@ Deprecations
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* The ``queuelib.PriorityQueue`` value for the
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:setting:`SCHEDULER_PRIORITY_QUEUE` setting is deprecated. Use
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:class:`scrapy.pqueues.ScrapyPriorityQueue` instead.
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``scrapy.pqueues.ScrapyPriorityQueue`` instead.
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* ``process_request`` callbacks passed to :class:`~scrapy.spiders.Rule` that
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do not accept two arguments are deprecated.
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@ -551,7 +551,7 @@ Scrapy 1.5.2 (2019-01-22)
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*The fix is backward incompatible*, it enables telnet user-password
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authentication by default with a random generated password. If you can't
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upgrade right away, please consider setting :setting:`TELNET_CONSOLE_PORT`
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upgrade right away, please consider setting :setting:`TELNETCONSOLE_PORT`
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out of its default value.
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See :ref:`telnet console <topics-telnetconsole>` documentation for more info
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@ -758,7 +758,9 @@ Enjoy! (Or read on for the rest of changes in this release.)
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Deprecations and Backward Incompatible Changes
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- Default to ``canonicalize=False`` in :class:`scrapy.linkextractors.LinkExtractor`
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- Default to ``canonicalize=False`` in
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:class:`scrapy.linkextractors.LinkExtractor
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<scrapy.linkextractors.lxmlhtml.LxmlLinkExtractor>`
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(:issue:`2537`, fixes :issue:`1941` and :issue:`1982`):
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**warning, this is technically backward-incompatible**
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- Enable memusage extension by default (:issue:`2539`, fixes :issue:`2187`);
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@ -794,10 +796,13 @@ New Features
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- New ``data:`` URI download handler (:issue:`2334`, fixes :issue:`2156`)
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- Log cache directory when HTTP Cache is used (:issue:`2611`, fixes :issue:`2604`)
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- Warn users when project contains duplicate spider names (fixes :issue:`2181`)
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- :class:`CaselessDict` now accepts ``Mapping`` instances and not only dicts (:issue:`2646`)
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- :ref:`Media downloads <topics-media-pipeline>`, with :class:`FilesPipelines`
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or :class:`ImagesPipelines`, can now optionally handle HTTP redirects
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using the new :setting:`MEDIA_ALLOW_REDIRECTS` setting (:issue:`2616`, fixes :issue:`2004`)
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- ``scrapy.utils.datatypes.CaselessDict`` now accepts ``Mapping`` instances and
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not only dicts (:issue:`2646`)
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- :ref:`Media downloads <topics-media-pipeline>`, with
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:class:`~scrapy.pipelines.files.FilesPipeline` or
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:class:`~scrapy.pipelines.images.ImagesPipeline`, can now optionally handle
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HTTP redirects using the new :setting:`MEDIA_ALLOW_REDIRECTS` setting
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(:issue:`2616`, fixes :issue:`2004`)
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- Accept non-complete responses from websites using a new
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:setting:`DOWNLOAD_FAIL_ON_DATALOSS` setting (:issue:`2590`, fixes :issue:`2586`)
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- Optional pretty-printing of JSON and XML items via
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@ -817,8 +822,8 @@ Bug fixes
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- LinkExtractor now strips leading and trailing whitespaces from attributes
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(:issue:`2547`, fixes :issue:`1614`)
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- Properly handle whitespaces in action attribute in :class:`FormRequest`
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(:issue:`2548`)
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- Properly handle whitespaces in action attribute in
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:class:`~scrapy.http.FormRequest` (:issue:`2548`)
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- Buffer CONNECT response bytes from proxy until all HTTP headers are received
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(:issue:`2495`, fixes :issue:`2491`)
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- FTP downloader now works on Python 3, provided you use Twisted>=17.1
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@ -851,7 +856,8 @@ Cleanups & Refactoring
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fixes :issue:`2560`)
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- Add omitted ``self`` arguments in default project middleware template (:issue:`2595`)
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- Remove redundant ``slot.add_request()`` call in ExecutionEngine (:issue:`2617`)
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- Catch more specific ``os.error`` exception in :class:`FSFilesStore` (:issue:`2644`)
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- Catch more specific ``os.error`` exception in
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``scrapy.pipelines.files.FSFilesStore`` (:issue:`2644`)
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- Change "localhost" test server certificate (:issue:`2720`)
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- Remove unused ``MEMUSAGE_REPORT`` setting (:issue:`2576`)
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@ -868,7 +874,8 @@ Documentation
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(:issue:`2477`, fixes :issue:`2475`)
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- FAQ: rewrite note on Python 3 support on Windows (:issue:`2690`)
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- Rearrange selector sections (:issue:`2705`)
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- Remove ``__nonzero__`` from :class:`SelectorList` docs (:issue:`2683`)
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- Remove ``__nonzero__`` from :class:`~scrapy.selector.SelectorList`
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docs (:issue:`2683`)
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- Mention how to disable request filtering in documentation of
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:setting:`DUPEFILTER_CLASS` setting (:issue:`2714`)
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- Add sphinx_rtd_theme to docs setup readme (:issue:`2668`)
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@ -2327,7 +2334,7 @@ Scrapy 0.18.0 (released 2013-08-09)
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- Moved persistent (on disk) queues to a separate project (queuelib_) which scrapy now depends on
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- Add scrapy commands using external libraries (:issue:`260`)
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- Added ``--pdb`` option to ``scrapy`` command line tool
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- Added :meth:`XPathSelector.remove_namespaces` which allows to remove all namespaces from XML documents for convenience (to work with namespace-less XPaths). Documented in :ref:`topics-selectors`.
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- Added :meth:`XPathSelector.remove_namespaces <scrapy.selector.Selector.remove_namespaces>` which allows to remove all namespaces from XML documents for convenience (to work with namespace-less XPaths). Documented in :ref:`topics-selectors`.
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- Several improvements to spider contracts
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- New default middleware named MetaRefreshMiddldeware that handles meta-refresh html tag redirections,
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- MetaRefreshMiddldeware and RedirectMiddleware have different priorities to address #62
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@ -2448,7 +2455,7 @@ Scrapy changes:
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- added options ``-o`` and ``-t`` to the :command:`runspider` command
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- documented :doc:`topics/autothrottle` and added to extensions installed by default. You still need to enable it with :setting:`AUTOTHROTTLE_ENABLED`
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- major Stats Collection refactoring: removed separation of global/per-spider stats, removed stats-related signals (``stats_spider_opened``, etc). Stats are much simpler now, backward compatibility is kept on the Stats Collector API and signals.
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- added :meth:`~scrapy.contrib.spidermiddleware.SpiderMiddleware.process_start_requests` method to spider middlewares
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- added :meth:`~scrapy.spidermiddlewares.SpiderMiddleware.process_start_requests` method to spider middlewares
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- dropped Signals singleton. Signals should now be accesed through the Crawler.signals attribute. See the signals documentation for more info.
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- dropped Signals singleton. Signals should now be accesed through the Crawler.signals attribute. See the signals documentation for more info.
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- dropped Stats Collector singleton. Stats can now be accessed through the Crawler.stats attribute. See the stats collection documentation for more info.
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@ -2609,7 +2616,8 @@ The numbers like #NNN reference tickets in the old issue tracker (Trac) which is
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New features and improvements
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- Passed item is now sent in the ``item`` argument of the :signal:`item_passed` (#273)
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- Passed item is now sent in the ``item`` argument of the :signal:`item_passed
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<item_scraped>` (#273)
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- Added verbose option to ``scrapy version`` command, useful for bug reports (#298)
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- HTTP cache now stored by default in the project data dir (#279)
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- Added project data storage directory (#276, #277)
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@ -240,6 +240,10 @@ Item objects
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Items replicate the standard `dict API`_, including its constructor. The
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only additional attribute provided by Items is:
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.. automethod:: copy
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.. automethod:: deepcopy
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.. attribute:: fields
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A dictionary containing *all declared fields* for this Item, not only
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@ -796,6 +796,7 @@ Default: ``True``
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Whether or not to use passive mode when initiating FTP transfers.
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.. reqmeta:: ftp_password
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.. setting:: FTP_PASSWORD
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FTP_PASSWORD
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@ -814,6 +815,7 @@ in ``Request`` meta.
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.. _RFC 1635: https://tools.ietf.org/html/rfc1635
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.. reqmeta:: ftp_user
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.. setting:: FTP_USER
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FTP_USER
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