diff --git a/docs/news.rst b/docs/news.rst index c7ad11862..940093e58 100644 --- a/docs/news.rst +++ b/docs/news.rst @@ -3,6 +3,177 @@ Release notes ============= +.. _release-2.10.0: + +Scrapy 2.10.0 (YYYY-MM-DD) +-------------------------- + +Highlights: + +- Added Python 3.12 support, dropped Python 3.7 support. + +- The new add-ons framework simplifies configuring 3rd-party components that + support it. + +- Exceptions to retry can now be configured. + +- Many fixes and improvements for feed exports. + +Modified requirements +~~~~~~~~~~~~~~~~~~~~~ + +- Dropped support for Python 3.7. (:issue:`5953`) + +- Added support for the upcoming Python 3.12. (:issue:`5984`) + +- Minimum versions increased for these dependencies: + + - lxml_: 4.3.0 → 4.4.1 + + - cryptography_: 3.4.6 → 36.0.0 + +- ``pkg_resources`` is no longer used. (:issue:`5956`, :issue:`5958`) + +- boto3_ is now recommended instead of botocore_ for exporting to S3. + (:issue:`5833`). + +Backward-incompatible changes +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +- The value of the :setting:`FEED_STORE_EMPTY` setting is now ``True`` + instead of ``False``. In earlier Scrapy versions empty files were created + even when this setting was ``False`` (which was a bug that is now fixed), + so the new default should keep the old behavior. (:issue:`872`, + :issue:`5847`) + +Deprecation removals +~~~~~~~~~~~~~~~~~~~~ + +- When a function is assigned to the :setting:`FEED_URI_PARAMS` setting, + returning ``None`` or modifying the ``params`` input parameter, deprecated + in Scrapy 2.6, is no longer supported. (:issue:`5994`, :issue:`5996`) + +- The ``scrapy.utils.reqser`` module, deprecated in Scrapy 2.6, is removed. + (:issue:`5994`, :issue:`5996`) + +- The ``scrapy.squeues`` classes ``PickleFifoDiskQueueNonRequest``, + ``PickleLifoDiskQueueNonRequest``, ``MarshalFifoDiskQueueNonRequest``, + and ``MarshalLifoDiskQueueNonRequest``, deprecated in + Scrapy 2.6, are removed. (:issue:`5994`, :issue:`5996`) + +- The property ``open_spiders`` and the methods ``has_capacity`` and + ``schedule`` of :class:`scrapy.core.engine.ExecutionEngine`, + deprecated in Scrapy 2.6, are removed. (:issue:`5994`, :issue:`5998`) + +- Passing a ``spider`` argument to the + :meth:`~scrapy.core.engine.ExecutionEngine.spider_is_idle`, + :meth:`~scrapy.core.engine.ExecutionEngine.crawl` and + :meth:`~scrapy.core.engine.ExecutionEngine.download` methods of + :class:`scrapy.core.engine.ExecutionEngine`, deprecated in Scrapy 2.6, is + no longer supported. (:issue:`5994`, :issue:`5998`) + +Deprecations +~~~~~~~~~~~~ + +- :class:`scrapy.utils.datatypes.CaselessDict` is deprecated, use + :class:`scrapy.utils.datatypes.CaseInsensitiveDict` instead. + (:issue:`5146`) + +- Passing the ``custom`` argument to + :func:`scrapy.utils.conf.build_component_list` is deprecated, it was used + in the past to merge ``FOO`` and ``FOO_BASE`` setting values but now Scrapy + uses :func:`scrapy.settings.BaseSettings.getwithbase` to do the same. + Code that uses this argument and cannot be switched to ``getwithbase()`` + can be switched to merging the values explicitly. (:issue:`5726`, + :issue:`5923`) + +New features +~~~~~~~~~~~~ + +- Added support for :ref:`Scrapy add-ons `. (:issue:`5950`) + +- Added the :setting:`RETRY_EXCEPTIONS` setting that configures which + exceptions will be retried by + :class:`~scrapy.downloadermiddlewares.retry.RetryMiddleware`. + (:issue:`2701`, :issue:`5929`) + +- Added the possiiblity to close the spider if no items were produced in the + specified time, configured by :setting:`CLOSESPIDER_TIMEOUT_NO_ITEM`. + (:issue:`5979`) + +- Added support for the :setting:`AWS_REGION_NAME` setting to feed exports. + (:issue:`5980`) + +- Added support for using :class:`pathlib.Path` objects that refer to + absolute Windows paths in the :setting:`FEEDS` setting. (:issue:`5939`) + +Bug fixes +~~~~~~~~~ + +- Fixed creating empty feeds even with ``FEED_STORE_EMPTY=False``. + (:issue:`872`, :issue:`5847`) + +- Fixed using absolute Windows paths when specifying output files. + (:issue:`5969`, :issue:`5971`) + +- Fixed problems with uploading large files to S3 by switching to multipart + uploads (requires boto3_). (:issue:`960`, :issue:`5735`, :issue:`5833`) + +- Fixed the JSON exporter writing extra commas when some exceptions occur. + (:issue:`3090`, :issue:`5952`) + +- Fixed the "read of closed file" error in the CSV exporter. (:issue:`5043`, + :issue:`5705`) + +- Fixed an error when a component added by the class object throws + :exc:`~scrapy.exceptions.NotConfigured` with a message. (:issue:`5950`, + :issue:`5992`) + +- Added the missing :meth:`scrapy.settings.BaseSettings.pop` method. + (:issue:`5959`, :issue:`5960`, :issue:`5963`) + +- Added :class:`~scrapy.utils.datatypes.CaseInsensitiveDict` as a replacement + for :class:`~scrapy.utils.datatypes.CaselessDict` that fixes some API + inconsistencies. (:issue:`5146`) + +Documentation +~~~~~~~~~~~~~ + +- Documented :meth:`scrapy.Spider.update_settings`. (:issue:`5745`, + :issue:`5846`) + +- Documented possible problems with early Twisted reactor installation and + their solutions. (:issue:`5981`, :issue:`6000`) + +- Added examples of making additional requests in callbacks. (:issue:`5927`) + +- Improved the feed export docs. (:issue:`5579`, :issue:`5931`) + +- Clarified the docs about request objects on redirection. (:issue:`5707`, + :issue:`5937`) + +Quality assurance +~~~~~~~~~~~~~~~~~ + +- Added support for running tests against the installed Scrapy version. + (:issue:`4914`, :issue:`5949`) + +- Extended typing hints. (:issue:`5925`, :issue:`5977`) + +- Fixed the ``test_utils_asyncio.AsyncioTest.test_set_asyncio_event_loop`` + test. (:issue:`5951`) + +- Fixed the ``test_feedexport.BatchDeliveriesTest.test_batch_path_differ`` + test on Windows. (:issue:`5847`) + +- Enabled CI runs for Python 3.11 on Windows. (:issue:`5999`) + +- Simplified skipping tests that depend on ``uvloop``. (:issue:`5984`) + +- Fixed the ``extra-deps-pinned`` tox env. (:issue:`5948`) + +- Implemented cleanups. (:issue:`5965`, :issue:`5986`) + .. _release-2.9.0: Scrapy 2.9.0 (2023-05-08) @@ -5748,6 +5919,7 @@ First release of Scrapy. .. _AJAX crawlable urls: https://developers.google.com/search/docs/ajax-crawling/docs/getting-started?csw=1 +.. _boto3: https://github.com/boto/boto3 .. _botocore: https://github.com/boto/botocore .. _chunked transfer encoding: https://en.wikipedia.org/wiki/Chunked_transfer_encoding .. _ClientForm: http://wwwsearch.sourceforge.net/old/ClientForm/