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Release notes

Scrapy 1.3.3 (2017-03-10)

Bug fixes

Make SpiderLoader raise ImportError again by default for missing dependencies and wrong :setting:`SPIDER_MODULES`. These exceptions were silenced as warnings since 1.3.0. A new setting is introduced to toggle between warning or exception if needed ; see :setting:`SPIDER_LOADER_WARN_ONLY` for details.

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Scrapy 1.3.2 (2017-02-13)

Bug fixes

Preserve request class when converting to/from dicts (utils.reqser) (:issue:`2510`).

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Use consistent selectors for author field in tutorial (:issue:`2551`).

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Fix TLS compatibility in Twisted 17+ (:issue:`2558`)

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Scrapy 1.3.1 (2017-02-08)

New features

Support 'True' and 'False' string values for boolean settings (:issue:`2519`); you can now do something like scrapy crawl myspider -s REDIRECT_ENABLED=False.

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Support kwargs with response.xpath() to use :ref:`XPath variables <topics-selectors-xpath-variables>` and ad-hoc namespaces declarations ; this requires at least Parsel v1.1 (:issue:`2457`).

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Add support for Python 3.6 (:issue:`2485`).

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Run tests on PyPy (warning: some tests still fail, so PyPy is not supported yet).

Bug fixes

Enforce DNS_TIMEOUT setting (:issue:`2496`).

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Fix :command:`view` command ; it was a regression in v1.3.0 (:issue:`2503`).

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Fix tests regarding *_EXPIRES settings with Files/Images pipelines (:issue:`2460`).

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Fix name of generated pipeline class when using basic project template (:issue:`2466`).

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Fix compatiblity with Twisted 17+ (:issue:`2496`, :issue:`2528`).

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Fix scrapy.Item inheritance on Python 3.6 (:issue:`2511`).

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Enforce numeric values for components order in SPIDER_MIDDLEWARES, DOWNLOADER_MIDDLEWARES, EXTENIONS and SPIDER_CONTRACTS (:issue:`2420`).

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Documentation

Reword Code of Coduct section and upgrade to Contributor Covenant v1.4 (:issue:`2469`).

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Clarify that passing spider arguments converts them to spider attributes (:issue:`2483`).

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Document formid argument on FormRequest.from_response() (:issue:`2497`).

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Add .rst extension to README files (:issue:`2507`).

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Mention LevelDB cache storage backend (:issue:`2525`).

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Use yield in sample callback code (:issue:`2533`).

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Add note about HTML entities decoding with .re()/.re_first() (:issue:`1704`).

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Typos (:issue:`2512`, :issue:`2534`, :issue:`2531`).

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Cleanups

Remove reduntant check in MetaRefreshMiddleware (:issue:`2542`).

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Faster checks in LinkExtractor for allow/deny patterns (:issue:`2538`).

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Remove dead code supporting old Twisted versions (:issue:`2544`).

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Scrapy 1.3.0 (2016-12-21)

This release comes rather soon after 1.2.2 for one main reason: it was found out that releases since 0.18 up to 1.2.2 (included) use some backported code from Twisted (scrapy.xlib.tx.*), even if newer Twisted modules are available. Scrapy now uses twisted.web.client and twisted.internet.endpoints directly. (See also cleanups below.)

As it is a major change, we wanted to get the bug fix out quickly while not breaking any projects using the 1.2 series.

New Features

MailSender now accepts single strings as values for to and cc arguments (:issue:`2272`)

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scrapy fetch url, scrapy shell url and fetch(url) inside scrapy shell now follow HTTP redirections by default (:issue:`2290`); See :command:`fetch` and :command:`shell` for details.

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HttpErrorMiddleware now logs errors with INFO level instead of DEBUG; this is technically backwards incompatible so please check your log parsers.
By default, logger names now use a long-form path, e.g. [scrapy.extensions.logstats], instead of the shorter "top-level" variant of prior releases (e.g. [scrapy]); this is backwards incompatible if you have log parsers expecting the short logger name part. You can switch back to short logger names using :setting:`LOG_SHORT_NAMES` set to True.

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Dependencies & Cleanups

Scrapy now requires Twisted >= 13.1 which is the case for many Linux distributions already.
As a consequence, we got rid of scrapy.xlib.tx.* modules, which copied some of Twisted code for users stuck with an "old" Twisted version
ChunkedTransferMiddleware is deprecated and removed from the default downloader middlewares.

Scrapy 1.2.3 (2017-03-03)

Packaging fix: disallow unsupported Twisted versions in setup.py

Scrapy 1.2.2 (2016-12-06)

Bug fixes

Fix a cryptic traceback when a pipeline fails on open_spider() (:issue:`2011`)

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Fix embedded IPython shell variables (fixing :issue:`396` that re-appeared in 1.2.0, fixed in :issue:`2418`)

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A couple of patches when dealing with robots.txt:
- handle (non-standard) relative sitemap URLs (:issue:`2390`)
  
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- handle non-ASCII URLs and User-Agents in Python 2 (:issue:`2373`)
  
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Documentation

Document "download_latency" key in Request's meta dict (:issue:`2033`)

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Remove page on (deprecated & unsupported) Ubuntu packages from ToC (:issue:`2335`)

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A few fixed typos (:issue:`2346`, :issue:`2369`, :issue:`2369`, :issue:`2380`) and clarifications (:issue:`2354`, :issue:`2325`, :issue:`2414`)

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Other changes

Advertize conda-forge as Scrapy's official conda channel (:issue:`2387`)

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More helpful error messages when trying to use .css() or .xpath() on non-Text Responses (:issue:`2264`)

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startproject command now generates a sample middlewares.py file (:issue:`2335`)

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Add more dependencies' version info in scrapy version verbose output (:issue:`2404`)

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Remove all *.pyc files from source distribution (:issue:`2386`)

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Scrapy 1.2.1 (2016-10-21)

Bug fixes

Include OpenSSL's more permissive default ciphers when establishing TLS/SSL connections (:issue:`2314`).

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Fix "Location" HTTP header decoding on non-ASCII URL redirects (:issue:`2321`).

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Documentation

Fix JsonWriterPipeline example (:issue:`2302`).

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Various notes: :issue:`2330` on spider names, :issue:`2329` on middleware methods processing order, :issue:`2327` on getting multi-valued HTTP headers as lists.

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Other changes

Removed www. from start_urls in built-in spider templates (:issue:`2299`).

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Scrapy 1.2.0 (2016-10-03)

New Features

New :setting:`FEED_EXPORT_ENCODING` setting to customize the encoding used when writing items to a file. This can be used to turn off \uXXXX escapes in JSON output. This is also useful for those wanting something else than UTF-8 for XML or CSV output (:issue:`2034`).

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startproject command now supports an optional destination directory to override the default one based on the project name (:issue:`2005`).

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New :setting:`SCHEDULER_DEBUG` setting to log requests serialization failures (:issue:`1610`).

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JSON encoder now supports serialization of set instances (:issue:`2058`).

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Interpret application/json-amazonui-streaming as TextResponse (:issue:`1503`).

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scrapy is imported by default when using shell tools (:command:`shell`, :ref:`inspect_response <topics-shell-inspect-response>`) (:issue:`2248`).

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Bug fixes

DefaultRequestHeaders middleware now runs before UserAgent middleware (:issue:`2088`). Warning: this is technically backwards incompatible, though we consider this a bug fix.

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HTTP cache extension and plugins that use the .scrapy data directory now work outside projects (:issue:`1581`). Warning: this is technically backwards incompatible, though we consider this a bug fix.

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Selector does not allow passing both response and text anymore (:issue:`2153`).

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Fixed logging of wrong callback name with scrapy parse (:issue:`2169`).

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Fix for an odd gzip decompression bug (:issue:`1606`).

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Fix for selected callbacks when using CrawlSpider with :command:`scrapy parse <parse>` (:issue:`2225`).

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Fix for invalid JSON and XML files when spider yields no items (:issue:`872`).

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Implement flush() fpr StreamLogger avoiding a warning in logs (:issue:`2125`).

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Refactoring

canonicalize_url has been moved to w3lib.url (:issue:`2168`).

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Tests & Requirements

Scrapy's new requirements baseline is Debian 8 "Jessie". It was previously Ubuntu 12.04 Precise. What this means in practice is that we run continuous integration tests with these (main) packages versions at a minimum: Twisted 14.0, pyOpenSSL 0.14, lxml 3.4.

Scrapy may very well work with older versions of these packages (the code base still has switches for older Twisted versions for example) but it is not guaranteed (because it's not tested anymore).

Documentation

Grammar fixes: :issue:`2128`, :issue:`1566`.

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Download stats badge removed from README (:issue:`2160`).

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New scrapy :ref:`architecture diagram <topics-architecture>` (:issue:`2165`).

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Updated Response parameters documentation (:issue:`2197`).

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Reworded misleading :setting:`RANDOMIZE_DOWNLOAD_DELAY` description (:issue:`2190`).

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Add StackOverflow as a support channel (:issue:`2257`).

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Scrapy 1.1.4 (2017-03-03)

Packaging fix: disallow unsupported Twisted versions in setup.py

Scrapy 1.1.3 (2016-09-22)

Bug fixes

Class attributes for subclasses of ImagesPipeline and FilesPipeline work as they did before 1.1.1 (:issue:`2243`, fixes :issue:`2198`)

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Documentation

:ref:`Overview <intro-overview>` and :ref:`tutorial <intro-tutorial>` rewritten to use http://toscrape.com websites (:issue:`2236`, :issue:`2249`, :issue:`2252`).

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Scrapy 1.1.2 (2016-08-18)

Bug fixes

Introduce a missing :setting:`IMAGES_STORE_S3_ACL` setting to override the default ACL policy in ImagesPipeline when uploading images to S3 (note that default ACL policy is "private" -- instead of "public-read" -- since Scrapy 1.1.0)

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:setting:`IMAGES_EXPIRES` default value set back to 90 (the regression was introduced in 1.1.1)

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Scrapy 1.1.1 (2016-07-13)

Bug fixes

Add "Host" header in CONNECT requests to HTTPS proxies (:issue:`2069`)

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Use response body when choosing response class (:issue:`2001`, fixes :issue:`2000`)

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Do not fail on canonicalizing URLs with wrong netlocs (:issue:`2038`, fixes :issue:`2010`)

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a few fixes for HttpCompressionMiddleware (and SitemapSpider):
- Do not decode HEAD responses (:issue:`2008`, fixes :issue:`1899`)
  
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- Handle charset parameter in gzip Content-Type header (:issue:`2050`, fixes :issue:`2049`)
  
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- Do not decompress gzip octet-stream responses (:issue:`2065`, fixes :issue:`2063`)
  
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Catch (and ignore with a warning) exception when verifying certificate against IP-address hosts (:issue:`2094`, fixes :issue:`2092`)

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Make FilesPipeline and ImagesPipeline backward compatible again regarding the use of legacy class attributes for customization (:issue:`1989`, fixes :issue:`1985`)

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New features

Enable genspider command outside project folder (:issue:`2052`)

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Retry HTTPS CONNECT TunnelError by default (:issue:`1974`)

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Documentation

FEED_TEMPDIR setting at lexicographical position (:commit:`9b3c72c`)

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Use idiomatic .extract_first() in overview (:issue:`1994`)

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Update years in copyright notice (:commit:`c2c8036`)

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Add information and example on errbacks (:issue:`1995`)

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Use "url" variable in downloader middleware example (:issue:`2015`)

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Grammar fixes (:issue:`2054`, :issue:`2120`)

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New FAQ entry on using BeautifulSoup in spider callbacks (:issue:`2048`)

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Add notes about scrapy not working on Windows with Python 3 (:issue:`2060`)

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Encourage complete titles in pull requests (:issue:`2026`)

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Tests

Upgrade py.test requirement on Travis CI and Pin pytest-cov to 2.2.1 (:issue:`2095`)

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Scrapy 1.1.0 (2016-05-11)

This 1.1 release brings a lot of interesting features and bug fixes:

Scrapy 1.1 has beta Python 3 support (requires Twisted >= 15.5). See :ref:`news_betapy3` for more details and some limitations.

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Hot new features:
- Item loaders now support nested loaders (:issue:`1467`).
  
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- FormRequest.from_response improvements (:issue:`1382`, :issue:`1137`).
  
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- Added setting :setting:`AUTOTHROTTLE_TARGET_CONCURRENCY` and improved AutoThrottle docs (:issue:`1324`).
  
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- Added response.text to get body as unicode (:issue:`1730`).
  
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- Anonymous S3 connections (:issue:`1358`).
  
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- Deferreds in downloader middlewares (:issue:`1473`). This enables better robots.txt handling (:issue:`1471`).
  
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- HTTP caching now follows RFC2616 more closely, added settings :setting:`HTTPCACHE_ALWAYS_STORE` and :setting:`HTTPCACHE_IGNORE_RESPONSE_CACHE_CONTROLS` (:issue:`1151`).
  
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- Selectors were extracted to the parsel library (:issue:`1409`). This means you can use Scrapy Selectors without Scrapy and also upgrade the selectors engine without needing to upgrade Scrapy.
  
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- HTTPS downloader now does TLS protocol negotiation by default, instead of forcing TLS 1.0. You can also set the SSL/TLS method using the new :setting:`DOWNLOADER_CLIENT_TLS_METHOD`.
  
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These bug fixes may require your attention:
- Don't retry bad requests (HTTP 400) by default (:issue:`1289`). If you need the old behavior, add 400 to :setting:`RETRY_HTTP_CODES`.
  
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- Fix shell files argument handling (:issue:`1710`, :issue:`1550`). If you try scrapy shell index.html it will try to load the URL http://index.html, use scrapy shell ./index.html to load a local file.
  
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- Robots.txt compliance is now enabled by default for newly-created projects (:issue:`1724`). Scrapy will also wait for robots.txt to be downloaded before proceeding with the crawl (:issue:`1735`). If you want to disable this behavior, update :setting:`ROBOTSTXT_OBEY` in settings.py file after creating a new project.
  
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- Exporters now work on unicode, instead of bytes by default (:issue:`1080`). If you use PythonItemExporter, you may want to update your code to disable binary mode which is now deprecated.
  
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- Accept XML node names containing dots as valid (:issue:`1533`).
  
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- When uploading files or images to S3 (with FilesPipeline or ImagesPipeline), the default ACL policy is now "private" instead of "public" Warning: backwards incompatible!. You can use :setting:`FILES_STORE_S3_ACL` to change it.
  
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- We've reimplemented canonicalize_url() for more correct output, especially for URLs with non-ASCII characters (:issue:`1947`). This could change link extractors output compared to previous scrapy versions. This may also invalidate some cache entries you could still have from pre-1.1 runs. Warning: backwards incompatible!.
  
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Keep reading for more details on other improvements and bug fixes.

Beta Python 3 Support

We have been hard at work to make Scrapy run on Python 3. As a result, now you can run spiders on Python 3.3, 3.4 and 3.5 (Twisted >= 15.5 required). Some features are still missing (and some may never be ported).

Almost all builtin extensions/middlewares are expected to work. However, we are aware of some limitations in Python 3:

Scrapy does not work on Windows with Python 3
Sending emails is not supported
FTP download handler is not supported
Telnet console is not supported

Additional New Features and Enhancements

Scrapy now has a Code of Conduct (:issue:`1681`).

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Command line tool now has completion for zsh (:issue:`934`).

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Improvements to scrapy shell:
- Support for bpython and configure preferred Python shell via SCRAPY_PYTHON_SHELL (:issue:`1100`, :issue:`1444`).
  
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- Support URLs without scheme (:issue:`1498`) Warning: backwards incompatible!
  
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- Bring back support for relative file path (:issue:`1710`, :issue:`1550`).
  
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Added :setting:`MEMUSAGE_CHECK_INTERVAL_SECONDS` setting to change default check interval (:issue:`1282`).

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Download handlers are now lazy-loaded on first request using their scheme (:issue:`1390`, :issue:`1421`).

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HTTPS download handlers do not force TLS 1.0 anymore; instead, OpenSSL's SSLv23_method()/TLS_method() is used allowing to try negotiating with the remote hosts the highest TLS protocol version it can (:issue:`1794`, :issue:`1629`).

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RedirectMiddleware now skips the status codes from handle_httpstatus_list on spider attribute or in Request's meta key (:issue:`1334`, :issue:`1364`, :issue:`1447`).

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Form submission:
- now works with <button> elements too (:issue:`1469`).
  
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- an empty string is now used for submit buttons without a value (:issue:`1472`)
  
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Dict-like settings now have per-key priorities (:issue:`1135`, :issue:`1149` and :issue:`1586`).

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Sending non-ASCII emails (:issue:`1662`)

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CloseSpider and SpiderState extensions now get disabled if no relevant setting is set (:issue:`1723`, :issue:`1725`).

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Added method ExecutionEngine.close (:issue:`1423`).

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Added method CrawlerRunner.create_crawler (:issue:`1528`).

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Scheduler priority queue can now be customized via :setting:`SCHEDULER_PRIORITY_QUEUE` (:issue:`1822`).

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.pps links are now ignored by default in link extractors (:issue:`1835`).

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temporary data folder for FTP and S3 feed storages can be customized using a new :setting:`FEED_TEMPDIR` setting (:issue:`1847`).

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FilesPipeline and ImagesPipeline settings are now instance attributes instead of class attributes, enabling spider-specific behaviors (:issue:`1891`).

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JsonItemExporter now formats opening and closing square brackets on their own line (first and last lines of output file) (:issue:`1950`).

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If available, botocore is used for S3FeedStorage, S3DownloadHandler and S3FilesStore (:issue:`1761`, :issue:`1883`).

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Tons of documentation updates and related fixes (:issue:`1291`, :issue:`1302`, :issue:`1335`, :issue:`1683`, :issue:`1660`, :issue:`1642`, :issue:`1721`, :issue:`1727`, :issue:`1879`).

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Other refactoring, optimizations and cleanup (:issue:`1476`, :issue:`1481`, :issue:`1477`, :issue:`1315`, :issue:`1290`, :issue:`1750`, :issue:`1881`).

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Deprecations and Removals

Added to_bytes and to_unicode, deprecated str_to_unicode and unicode_to_str functions (:issue:`778`).

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binary_is_text is introduced, to replace use of isbinarytext (but with inverse return value) (:issue:`1851`)

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The optional_features set has been removed (:issue:`1359`).

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The --lsprof command line option has been removed (:issue:`1689`). Warning: backward incompatible, but doesn't break user code.

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The following datatypes were deprecated (:issue:`1720`):

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- scrapy.utils.datatypes.MultiValueDictKeyError
- scrapy.utils.datatypes.MultiValueDict
- scrapy.utils.datatypes.SiteNode
The previously bundled scrapy.xlib.pydispatch library was deprecated and replaced by pydispatcher.

Relocations

telnetconsole was relocated to extensions/ (:issue:`1524`).

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- Note: telnet is not enabled on Python 3 (https://github.com/scrapy/scrapy/pull/1524#issuecomment-146985595)

Bugfixes

Scrapy does not retry requests that got a HTTP 400 Bad Request response anymore (:issue:`1289`). Warning: backwards incompatible!

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Support empty password for http_proxy config (:issue:`1274`).

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Interpret application/x-json as TextResponse (:issue:`1333`).

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Support link rel attribute with multiple values (:issue:`1201`).

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Fixed scrapy.http.FormRequest.from_response when there is a <base> tag (:issue:`1564`).

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Fixed :setting:`TEMPLATES_DIR` handling (:issue:`1575`).

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Various FormRequest fixes (:issue:`1595`, :issue:`1596`, :issue:`1597`).

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Makes _monkeypatches more robust (:issue:`1634`).

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Fixed bug on XMLItemExporter with non-string fields in items (:issue:`1738`).

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Fixed startproject command in OS X (:issue:`1635`).

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Fixed PythonItemExporter and CSVExporter for non-string item types (:issue:`1737`).

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Various logging related fixes (:issue:`1294`, :issue:`1419`, :issue:`1263`, :issue:`1624`, :issue:`1654`, :issue:`1722`, :issue:`1726` and :issue:`1303`).

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Fixed bug in utils.template.render_templatefile() (:issue:`1212`).

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sitemaps extraction from robots.txt is now case-insensitive (:issue:`1902`).

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HTTPS+CONNECT tunnels could get mixed up when using multiple proxies to same remote host (:issue:`1912`).

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Scrapy 1.0.7 (2017-03-03)

Packaging fix: disallow unsupported Twisted versions in setup.py

Scrapy 1.0.6 (2016-05-04)

FIX: RetryMiddleware is now robust to non-standard HTTP status codes (:issue:`1857`)

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FIX: Filestorage HTTP cache was checking wrong modified time (:issue:`1875`)

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DOC: Support for Sphinx 1.4+ (:issue:`1893`)

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DOC: Consistency in selectors examples (:issue:`1869`)

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Scrapy 1.0.5 (2016-02-04)

FIX: [Backport] Ignore bogus links in LinkExtractors (fixes :issue:`907`, :commit:`108195e`)

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TST: Changed buildbot makefile to use 'pytest' (:commit:`1f3d90a`)

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DOC: Fixed typos in tutorial and media-pipeline (:commit:`808a9ea` and :commit:`803bd87`)

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DOC: Add AjaxCrawlMiddleware to DOWNLOADER_MIDDLEWARES_BASE in settings docs (:commit:`aa94121`)

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Scrapy 1.0.4 (2015-12-30)

Ignoring xlib/tx folder, depending on Twisted version. (:commit:`7dfa979`)

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Run on new travis-ci infra (:commit:`6e42f0b`)

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Spelling fixes (:commit:`823a1cc`)

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escape nodename in xmliter regex (:commit:`da3c155`)

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test xml nodename with dots (:commit:`4418fc3`)

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TST don't use broken Pillow version in tests (:commit:`a55078c`)

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disable log on version command. closes #1426 (:commit:`86fc330`)

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disable log on startproject command (:commit:`db4c9fe`)

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Add PyPI download stats badge (:commit:`df2b944`)

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don't run tests twice on Travis if a PR is made from a scrapy/scrapy branch (:commit:`a83ab41`)

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Add Python 3 porting status badge to the README (:commit:`73ac80d`)

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fixed RFPDupeFilter persistence (:commit:`97d080e`)

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TST a test to show that dupefilter persistence is not working (:commit:`97f2fb3`)

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explicit close file on file:// scheme handler (:commit:`d9b4850`)

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Disable dupefilter in shell (:commit:`c0d0734`)

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DOC: Add captions to toctrees which appear in sidebar (:commit:`aa239ad`)

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DOC Removed pywin32 from install instructions as it's already declared as dependency. (:commit:`10eb400`)

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Added installation notes about using Conda for Windows and other OSes. (:commit:`1c3600a`)

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Fixed minor grammar issues. (:commit:`7f4ddd5`)

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fixed a typo in the documentation. (:commit:`b71f677`)

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Version 1 now exists (:commit:`5456c0e`)

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fix another invalid xpath error (:commit:`0a1366e`)

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fix ValueError: Invalid XPath: //div/[id="not-exists"]/text() on selectors.rst (:commit:`ca8d60f`)

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Reference Homebrew's homepage for installation instructions (:commit:`1925db1`)

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Add oldest supported tox version to contributing docs (:commit:`5d10d6d`)

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DOC(ENH): specify path to rtd theme explicitly (:commit:`de73b1a`)

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minor: scrapy.Spider docs grammar (:commit:`1ddcc7b`)

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Make common practices sample code match the comments (:commit:`1b85bcf`)

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nextcall repetitive calls (heartbeats). (:commit:`55f7104`)

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Backport fix compatibility with Twisted 15.4.0 (:commit:`b262411`)

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pin pytest to 2.7.3 (:commit:`a6535c2`)

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Typo (:commit:`f8d0682`)

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Fix list formatting (:commit:`5f83a93`)

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fix scrapy squeue tests after recent changes to queuelib (:commit:`3365c01`)

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Add openssl version to version command (:commit:`13c45ac`)

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Scrapy 1.0.3 (2015-08-11)

add service_identity to scrapy install_requires (:commit:`cbc2501`)

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Workaround for travis#296 (:commit:`66af9cd`)

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Scrapy 1.0.2 (2015-08-06)

Twisted 15.3.0 does not raises PicklingError serializing lambda functions (:commit:`b04dd7d`)

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Minor method name fix (:commit:`6f85c7f`)

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minor: scrapy.Spider grammar and clarity (:commit:`9c9d2e0`)

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Put a blurb about support channels in CONTRIBUTING (:commit:`c63882b`)

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Fixed typos (:commit:`a9ae7b0`)

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Fix doc reference. (:commit:`7c8a4fe`)

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Scrapy 1.0.1 (2015-07-01)

Unquote request path before passing to FTPClient, it already escape paths (:commit:`cc00ad2`)

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include tests/ to source distribution in MANIFEST.in (:commit:`eca227e`)

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DOC Fix SelectJmes documentation (:commit:`b8567bc`)

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DOC Bring Ubuntu and Archlinux outside of Windows subsection (:commit:`392233f`)

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DOC remove version suffix from ubuntu package (:commit:`5303c66`)

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DOC Update release date for 1.0 (:commit:`c89fa29`)

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Scrapy 1.0.0 (2015-06-19)

You will find a lot of new features and bugfixes in this major release. Make sure to check our updated :ref:`overview <intro-overview>` to get a glance of some of the changes, along with our brushed :ref:`tutorial <intro-tutorial>`.

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Support for returning dictionaries in spiders

Declaring and returning Scrapy Items is no longer necessary to collect the scraped data from your spider, you can now return explicit dictionaries instead.

Classic version

class MyItem(scrapy.Item):
    url = scrapy.Field()

class MySpider(scrapy.Spider):
    def parse(self, response):
        return MyItem(url=response.url)

New version

class MySpider(scrapy.Spider):
    def parse(self, response):
        return {'url': response.url}

Per-spider settings (GSoC 2014)

Last Google Summer of Code project accomplished an important redesign of the mechanism used for populating settings, introducing explicit priorities to override any given setting. As an extension of that goal, we included a new level of priority for settings that act exclusively for a single spider, allowing them to redefine project settings.

Start using it by defining a :attr:`~scrapy.spiders.Spider.custom_settings` class variable in your spider:

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class MySpider(scrapy.Spider):
    custom_settings = {
        "DOWNLOAD_DELAY": 5.0,
        "RETRY_ENABLED": False,
    }

Read more about settings population: :ref:`topics-settings`

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Python Logging

Scrapy 1.0 has moved away from Twisted logging to support Python built in’s as default logging system. We’re maintaining backward compatibility for most of the old custom interface to call logging functions, but you’ll get warnings to switch to the Python logging API entirely.

Old version

from scrapy import log
log.msg('MESSAGE', log.INFO)

New version

import logging
logging.info('MESSAGE')

Logging with spiders remains the same, but on top of the :meth:`~scrapy.spiders.Spider.log` method you’ll have access to a custom :attr:`~scrapy.spiders.Spider.logger` created for the spider to issue log events:

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class MySpider(scrapy.Spider):
    def parse(self, response):
        self.logger.info('Response received')

Read more in the logging documentation: :ref:`topics-logging`

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Crawler API refactoring (GSoC 2014)

Another milestone for last Google Summer of Code was a refactoring of the internal API, seeking a simpler and easier usage. Check new core interface in: :ref:`topics-api`

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A common situation where you will face these changes is while running Scrapy from scripts. Here’s a quick example of how to run a Spider manually with the new API:

from scrapy.crawler import CrawlerProcess

process = CrawlerProcess({
    'USER_AGENT': 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)'
})
process.crawl(MySpider)
process.start()

Bear in mind this feature is still under development and its API may change until it reaches a stable status.

See more examples for scripts running Scrapy: :ref:`topics-practices`

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Module Relocations

There’s been a large rearrangement of modules trying to improve the general structure of Scrapy. Main changes were separating various subpackages into new projects and dissolving both scrapy.contrib and scrapy.contrib_exp into top level packages. Backward compatibility was kept among internal relocations, while importing deprecated modules expect warnings indicating their new place.

Full list of relocations

Outsourced packages

Note

These extensions went through some minor changes, e.g. some setting names were changed. Please check the documentation in each new repository to get familiar with the new usage.

Old location	New location
scrapy.commands.deploy	scrapyd-client (See other alternatives here: :ref:`topics-deploy`) System Message: ERROR/3 (`<stdin>`, line 768); backlink Unknown interpreted text role "ref".
scrapy.contrib.djangoitem	scrapy-djangoitem
scrapy.webservice	scrapy-jsonrpc

scrapy.contrib_exp and scrapy.contrib dissolutions

Old location	New location
scrapy.contrib_exp.downloadermiddleware.decompression	scrapy.downloadermiddlewares.decompression
scrapy.contrib_exp.iterators	scrapy.utils.iterators
scrapy.contrib.downloadermiddleware	scrapy.downloadermiddlewares
scrapy.contrib.exporter	scrapy.exporters
scrapy.contrib.linkextractors	scrapy.linkextractors
scrapy.contrib.loader	scrapy.loader
scrapy.contrib.loader.processor	scrapy.loader.processors
scrapy.contrib.pipeline	scrapy.pipelines
scrapy.contrib.spidermiddleware	scrapy.spidermiddlewares
scrapy.contrib.spiders	scrapy.spiders
scrapy.contrib.closespider scrapy.contrib.corestats scrapy.contrib.debug scrapy.contrib.feedexport scrapy.contrib.httpcache scrapy.contrib.logstats scrapy.contrib.memdebug scrapy.contrib.memusage scrapy.contrib.spiderstate scrapy.contrib.statsmailer scrapy.contrib.throttle	scrapy.extensions.*

Plural renames and Modules unification

Old location	New location
scrapy.command	scrapy.commands
scrapy.dupefilter	scrapy.dupefilters
scrapy.linkextractor	scrapy.linkextractors
scrapy.spider	scrapy.spiders
scrapy.squeue	scrapy.squeues
scrapy.statscol	scrapy.statscollectors
scrapy.utils.decorator	scrapy.utils.decorators

Class renames

Old location	New location
scrapy.spidermanager.SpiderManager	scrapy.spiderloader.SpiderLoader

Settings renames

Old location	New location
SPIDER_MANAGER_CLASS	SPIDER_LOADER_CLASS

Changelog

New Features and Enhancements

Python logging (:issue:`1060`, :issue:`1235`, :issue:`1236`, :issue:`1240`, :issue:`1259`, :issue:`1278`, :issue:`1286`)

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FEED_EXPORT_FIELDS option (:issue:`1159`, :issue:`1224`)

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Dns cache size and timeout options (:issue:`1132`)

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support namespace prefix in xmliter_lxml (:issue:`963`)

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Reactor threadpool max size setting (:issue:`1123`)

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Allow spiders to return dicts. (:issue:`1081`)

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Add Response.urljoin() helper (:issue:`1086`)

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look in ~/.config/scrapy.cfg for user config (:issue:`1098`)

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handle TLS SNI (:issue:`1101`)

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Selectorlist extract first (:issue:`624`, :issue:`1145`)

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Added JmesSelect (:issue:`1016`)

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add gzip compression to filesystem http cache backend (:issue:`1020`)

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CSS support in link extractors (:issue:`983`)

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httpcache dont_cache meta #19 #689 (:issue:`821`)

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add signal to be sent when request is dropped by the scheduler (:issue:`961`)

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avoid download large response (:issue:`946`)

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Allow to specify the quotechar in CSVFeedSpider (:issue:`882`)

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Add referer to "Spider error processing" log message (:issue:`795`)

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process robots.txt once (:issue:`896`)

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GSoC Per-spider settings (:issue:`854`)

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Add project name validation (:issue:`817`)

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GSoC API cleanup (:issue:`816`, :issue:`1128`, :issue:`1147`, :issue:`1148`, :issue:`1156`, :issue:`1185`, :issue:`1187`, :issue:`1258`, :issue:`1268`, :issue:`1276`, :issue:`1285`, :issue:`1284`)

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Do leveldb compaction for httpcache on closing (:issue:`1297`)

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Deprecations and Removals

Deprecate htmlparser link extractor (:issue:`1205`)

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remove deprecated code from FeedExporter (:issue:`1155`)

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a leftover for.15 compatibility (:issue:`925`)

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drop support for CONCURRENT_REQUESTS_PER_SPIDER (:issue:`895`)

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Drop old engine code (:issue:`911`)

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Deprecate SgmlLinkExtractor (:issue:`777`)

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Relocations

Move exporters/__init__.py to exporters.py (:issue:`1242`)

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Move base classes to their packages (:issue:`1218`, :issue:`1233`)

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Module relocation (:issue:`1181`, :issue:`1210`)

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rename SpiderManager to SpiderLoader (:issue:`1166`)

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Remove djangoitem (:issue:`1177`)

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remove scrapy deploy command (:issue:`1102`)

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dissolve contrib_exp (:issue:`1134`)

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Deleted bin folder from root, fixes #913 (:issue:`914`)

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Remove jsonrpc based webservice (:issue:`859`)

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Move Test cases under project root dir (:issue:`827`, :issue:`841`)

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Fix backward incompatibility for relocated paths in settings (:issue:`1267`)

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Documentation

CrawlerProcess documentation (:issue:`1190`)

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Favoring web scraping over screen scraping in the descriptions (:issue:`1188`)

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Some improvements for Scrapy tutorial (:issue:`1180`)

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Documenting Files Pipeline together with Images Pipeline (:issue:`1150`)

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deployment docs tweaks (:issue:`1164`)

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Added deployment section covering scrapyd-deploy and shub (:issue:`1124`)

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Adding more settings to project template (:issue:`1073`)

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some improvements to overview page (:issue:`1106`)

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Updated link in docs/topics/architecture.rst (:issue:`647`)

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DOC reorder topics (:issue:`1022`)

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updating list of Request.meta special keys (:issue:`1071`)

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DOC document download_timeout (:issue:`898`)

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DOC simplify extension docs (:issue:`893`)

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Leaks docs (:issue:`894`)

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DOC document from_crawler method for item pipelines (:issue:`904`)

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Spider_error doesn't support deferreds (:issue:`1292`)

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Bugfixes

Item multi inheritance fix (:issue:`353`, :issue:`1228`)

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ItemLoader.load_item: iterate over copy of fields (:issue:`722`)

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Fix Unhandled error in Deferred (RobotsTxtMiddleware) (:issue:`1131`, :issue:`1197`)

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Force to read DOWNLOAD_TIMEOUT as int (:issue:`954`)

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scrapy.utils.misc.load_object should print full traceback (:issue:`902`)

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Fix bug for ".local" host name (:issue:`878`)

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Fix for Enabled extensions, middlewares, pipelines info not printed anymore (:issue:`879`)

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fix dont_merge_cookies bad behaviour when set to false on meta (:issue:`846`)

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Python 3 In Progress Support

disable scrapy.telnet if twisted.conch is not available (:issue:`1161`)

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fix Python 3 syntax errors in ajaxcrawl.py (:issue:`1162`)

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Prevent Python 3 port regressions (:issue:`830`)

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PY3 make it possible to run some tests in Python3 (:issue:`776`)

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Tests

remove unnecessary lines from py3-ignores (:issue:`1243`)

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Add docs build to travis (:issue:`1234`)

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TST don't collect tests from deprecated modules. (:issue:`1165`)

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install service_identity package in tests to prevent warnings (:issue:`1168`)

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Fix deprecated settings API in tests (:issue:`1152`)

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Add test for webclient with POST method and no body given (:issue:`1089`)

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py3-ignores.txt supports comments (:issue:`1044`)

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modernize some of the asserts (:issue:`835`)

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selector.__repr__ test (:issue:`779`)

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Code refactoring

CSVFeedSpider cleanup: use iterate_spider_output (:issue:`1079`)

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remove unnecessary check from scrapy.utils.spider.iter_spider_output (:issue:`1078`)

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Pydispatch pep8 (:issue:`992`)

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For consistency, use job_dir helper in SpiderState extension. (:issue:`805`)

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rename "sflo" local variables to less cryptic "log_observer" (:issue:`775`)

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Scrapy 0.24.6 (2015-04-20)

encode invalid xpath with unicode_escape under PY2 (:commit:`07cb3e5`)

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fix IPython shell scope issue and load IPython user config (:commit:`2c8e573`)

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Fix small typo in the docs (:commit:`d694019`)

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Fix small typo (:commit:`f92fa83`)

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Converted sel.xpath() calls to response.xpath() in Extracting the data (:commit:`c2c6d15`)

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Scrapy 0.24.5 (2015-02-25)

Support new _getEndpoint Agent signatures on Twisted 15.0.0 (:commit:`540b9bc`)

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DOC a couple more references are fixed (:commit:`b4c454b`)

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DOC fix a reference (:commit:`e3c1260`)

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t.i.b.ThreadedResolver is now a new-style class (:commit:`9e13f42`)

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S3DownloadHandler: fix auth for requests with quoted paths/query params (:commit:`cdb9a0b`)

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fixed the variable types in mailsender documentation (:commit:`bb3a848`)

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Reset items_scraped instead of item_count (:commit:`edb07a4`)

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Tentative attention message about what document to read for contributions (:commit:`7ee6f7a`)

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mitmproxy 0.10.1 needs netlib 0.10.1 too (:commit:`874fcdd`)

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pin mitmproxy 0.10.1 as >0.11 does not work with tests (:commit:`c6b21f0`)

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Test the parse command locally instead of against an external url (:commit:`c3a6628`)

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Patches Twisted issue while closing the connection pool on HTTPDownloadHandler (:commit:`d0bf957`)

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Updates documentation on dynamic item classes. (:commit:`eeb589a`)

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Merge pull request #943 from Lazar-T/patch-3 (:commit:`5fdab02`)

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typo (:commit:`b0ae199`)

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pywin32 is required by Twisted. closes #937 (:commit:`5cb0cfb`)

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Update install.rst (:commit:`781286b`)

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comma instead of fullstop (:commit:`627b9ba`)

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Merge pull request #885 from jsma/patch-1 (:commit:`de909ad`)

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Update request-response.rst (:commit:`3f3263d`)

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SgmlLinkExtractor - fix for parsing <area> tag with Unicode present (:commit:`49b40f0`)

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Scrapy 0.24.4 (2014-08-09)

pem file is used by mockserver and required by scrapy bench (:commit:`5eddc68`)

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scrapy bench needs scrapy.tests* (:commit:`d6cb999`)

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Scrapy 0.24.3 (2014-08-09)

no need to waste travis-ci time on py3 for 0.24 (:commit:`8e080c1`)

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Update installation docs (:commit:`1d0c096`)

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There is a trove classifier for Scrapy framework! (:commit:`4c701d7`)

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update other places where w3lib version is mentioned (:commit:`d109c13`)

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Update w3lib requirement to 1.8.0 (:commit:`39d2ce5`)

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Use w3lib.html.replace_entities() (remove_entities() is deprecated) (:commit:`180d3ad`)

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set zip_safe=False (:commit:`a51ee8b`)

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do not ship tests package (:commit:`ee3b371`)

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scrapy.bat is not needed anymore (:commit:`c3861cf`)

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Modernize setup.py (:commit:`362e322`)

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fix ftp test cases (:commit:`a274a7f`)

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The sum up of travis-ci builds are taking like 50min to complete (:commit:`ae1e2cc`)

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Update shell.rst typo (:commit:`e49c96a`)

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removes weird indentation in the shell results (:commit:`1ca489d`)

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improved explanations, clarified blog post as source, added link for XPath string functions in the spec (:commit:`65c8f05`)

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renamed UserTimeoutError and ServerTimeouterror #583 (:commit:`037f6ab`)

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adding some xpath tips to selectors docs (:commit:`2d103e0`)

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fix tests to account for https://github.com/scrapy/w3lib/pull/23 (:commit:`f8d366a`)

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get_func_args maximum recursion fix #728 (:commit:`81344ea`)

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Updated input/ouput processor example according to #560. (:commit:`f7c4ea8`)

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Fixed Python syntax in tutorial. (:commit:`db59ed9`)

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Add test case for tunneling proxy (:commit:`f090260`)

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Bugfix for leaking Proxy-Authorization header to remote host when using tunneling (:commit:`d8793af`)

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Extract links from XHTML documents with MIME-Type "application/xml" (:commit:`ed1f376`)

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Merge pull request #793 from roysc/patch-1 (:commit:`91a1106`)

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Fix typo in commands.rst (:commit:`743e1e2`)

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better testcase for settings.overrides.setdefault (:commit:`e22daaf`)

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Using CRLF as line marker according to http 1.1 definition (:commit:`5ec430b`)

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Scrapy 0.24.2 (2014-07-08)

Use a mutable mapping to proxy deprecated settings.overrides and settings.defaults attribute (:commit:`e5e8133`)

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there is not support for python3 yet (:commit:`3cd6146`)

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Update python compatible version set to debian packages (:commit:`fa5d76b`)

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DOC fix formatting in release notes (:commit:`c6a9e20`)

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Scrapy 0.24.1 (2014-06-27)

Fix deprecated CrawlerSettings and increase backwards compatibility with .defaults attribute (:commit:`8e3f20a`)

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Scrapy 0.24.0 (2014-06-26)

Enhancements

Improve Scrapy top-level namespace (:issue:`494`, :issue:`684`)

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Add selector shortcuts to responses (:issue:`554`, :issue:`690`)

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Add new lxml based LinkExtractor to replace unmantained SgmlLinkExtractor (:issue:`559`, :issue:`761`, :issue:`763`)

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Cleanup settings API - part of per-spider settings GSoC project (:issue:`737`)

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Add UTF8 encoding header to templates (:issue:`688`, :issue:`762`)

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Telnet console now binds to 127.0.0.1 by default (:issue:`699`)

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Update debian/ubuntu install instructions (:issue:`509`, :issue:`549`)

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Disable smart strings in lxml XPath evaluations (:issue:`535`)

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Restore filesystem based cache as default for http cache middleware (:issue:`541`, :issue:`500`, :issue:`571`)

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Expose current crawler in Scrapy shell (:issue:`557`)

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Improve testsuite comparing CSV and XML exporters (:issue:`570`)

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New offsite/filtered and offsite/domains stats (:issue:`566`)

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Support process_links as generator in CrawlSpider (:issue:`555`)

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Verbose logging and new stats counters for DupeFilter (:issue:`553`)

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Add a mimetype parameter to MailSender.send() (:issue:`602`)

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Generalize file pipeline log messages (:issue:`622`)

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Replace unencodeable codepoints with html entities in SGMLLinkExtractor (:issue:`565`)

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Converted SEP documents to rst format (:issue:`629`, :issue:`630`, :issue:`638`, :issue:`632`, :issue:`636`, :issue:`640`, :issue:`635`, :issue:`634`, :issue:`639`, :issue:`637`, :issue:`631`, :issue:`633`, :issue:`641`, :issue:`642`)

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Tests and docs for clickdata's nr index in FormRequest (:issue:`646`, :issue:`645`)

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Allow to disable a downloader handler just like any other component (:issue:`650`)

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Log when a request is discarded after too many redirections (:issue:`654`)

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Log error responses if they are not handled by spider callbacks (:issue:`612`, :issue:`656`)

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Add content-type check to http compression mw (:issue:`193`, :issue:`660`)

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Run pypy tests using latest pypi from ppa (:issue:`674`)

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Run test suite using pytest instead of trial (:issue:`679`)

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Build docs and check for dead links in tox environment (:issue:`687`)

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Make scrapy.version_info a tuple of integers (:issue:`681`, :issue:`692`)

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Infer exporter's output format from filename extensions (:issue:`546`, :issue:`659`, :issue:`760`)

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Support case-insensitive domains in url_is_from_any_domain() (:issue:`693`)

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Remove pep8 warnings in project and spider templates (:issue:`698`)

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Tests and docs for request_fingerprint function (:issue:`597`)

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Update SEP-19 for GSoC project per-spider settings (:issue:`705`)

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Set exit code to non-zero when contracts fails (:issue:`727`)

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Add a setting to control what class is instanciated as Downloader component (:issue:`738`)

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Pass response in item_dropped signal (:issue:`724`)

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Improve scrapy check contracts command (:issue:`733`, :issue:`752`)

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Document spider.closed() shortcut (:issue:`719`)

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Document request_scheduled signal (:issue:`746`)

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Add a note about reporting security issues (:issue:`697`)

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Add LevelDB http cache storage backend (:issue:`626`, :issue:`500`)

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Sort spider list output of scrapy list command (:issue:`742`)

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Multiple documentation enhancemens and fixes (:issue:`575`, :issue:`587`, :issue:`590`, :issue:`596`, :issue:`610`, :issue:`617`, :issue:`618`, :issue:`627`, :issue:`613`, :issue:`643`, :issue:`654`, :issue:`675`, :issue:`663`, :issue:`711`, :issue:`714`)

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Bugfixes

Encode unicode URL value when creating Links in RegexLinkExtractor (:issue:`561`)

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Ignore None values in ItemLoader processors (:issue:`556`)

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Fix link text when there is an inner tag in SGMLLinkExtractor and HtmlParserLinkExtractor (:issue:`485`, :issue:`574`)

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Fix wrong checks on subclassing of deprecated classes (:issue:`581`, :issue:`584`)

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Handle errors caused by inspect.stack() failures (:issue:`582`)

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Fix a reference to unexistent engine attribute (:issue:`593`, :issue:`594`)

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Fix dynamic itemclass example usage of type() (:issue:`603`)

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Use lucasdemarchi/codespell to fix typos (:issue:`628`)

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Fix default value of attrs argument in SgmlLinkExtractor to be tuple (:issue:`661`)

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Fix XXE flaw in sitemap reader (:issue:`676`)

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Fix engine to support filtered start requests (:issue:`707`)

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Fix offsite middleware case on urls with no hostnames (:issue:`745`)

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Testsuite doesn't require PIL anymore (:issue:`585`)

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Scrapy 0.22.2 (released 2014-02-14)

fix a reference to unexistent engine.slots. closes #593 (:commit:`13c099a`)

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downloaderMW doc typo (spiderMW doc copy remnant) (:commit:`8ae11bf`)

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Correct typos (:commit:`1346037`)

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Scrapy 0.22.1 (released 2014-02-08)

localhost666 can resolve under certain circumstances (:commit:`2ec2279`)

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test inspect.stack failure (:commit:`cc3eda3`)

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Handle cases when inspect.stack() fails (:commit:`8cb44f9`)

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Fix wrong checks on subclassing of deprecated classes. closes #581 (:commit:`46d98d6`)

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Docs: 4-space indent for final spider example (:commit:`13846de`)

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Fix HtmlParserLinkExtractor and tests after #485 merge (:commit:`368a946`)

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BaseSgmlLinkExtractor: Fixed the missing space when the link has an inner tag (:commit:`b566388`)

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BaseSgmlLinkExtractor: Added unit test of a link with an inner tag (:commit:`c1cb418`)

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BaseSgmlLinkExtractor: Fixed unknown_endtag() so that it only set current_link=None when the end tag match the opening tag (:commit:`7e4d627`)

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Fix tests for Travis-CI build (:commit:`76c7e20`)

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replace unencodeable codepoints with html entities. fixes #562 and #285 (:commit:`5f87b17`)

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RegexLinkExtractor: encode URL unicode value when creating Links (:commit:`d0ee545`)

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Updated the tutorial crawl output with latest output. (:commit:`8da65de`)

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Updated shell docs with the crawler reference and fixed the actual shell output. (:commit:`875b9ab`)

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PEP8 minor edits. (:commit:`f89efaf`)

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Expose current crawler in the scrapy shell. (:commit:`5349cec`)

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Unused re import and PEP8 minor edits. (:commit:`387f414`)

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Ignore None's values when using the ItemLoader. (:commit:`0632546`)

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DOC Fixed HTTPCACHE_STORAGE typo in the default value which is now Filesystem instead Dbm. (:commit:`cde9a8c`)

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show ubuntu setup instructions as literal code (:commit:`fb5c9c5`)

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Update Ubuntu installation instructions (:commit:`70fb105`)

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Merge pull request #550 from stray-leone/patch-1 (:commit:`6f70b6a`)

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modify the version of scrapy ubuntu package (:commit:`725900d`)

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fix 0.22.0 release date (:commit:`af0219a`)

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fix typos in news.rst and remove (not released yet) header (:commit:`b7f58f4`)

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Scrapy 0.22.0 (released 2014-01-17)

Enhancements

[Backwards incompatible] Switched HTTPCacheMiddleware backend to filesystem (:issue:`541`) To restore old backend set HTTPCACHE_STORAGE to scrapy.contrib.httpcache.DbmCacheStorage

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Proxy https:// urls using CONNECT method (:issue:`392`, :issue:`397`)

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Add a middleware to crawl ajax crawleable pages as defined by google (:issue:`343`)

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Rename scrapy.spider.BaseSpider to scrapy.spider.Spider (:issue:`510`, :issue:`519`)

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Selectors register EXSLT namespaces by default (:issue:`472`)

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Unify item loaders similar to selectors renaming (:issue:`461`)

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Make RFPDupeFilter class easily subclassable (:issue:`533`)

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Improve test coverage and forthcoming Python 3 support (:issue:`525`)

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Promote startup info on settings and middleware to INFO level (:issue:`520`)

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Support partials in get_func_args util (:issue:`506`, issue:504)

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Allow running indiviual tests via tox (:issue:`503`)

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Update extensions ignored by link extractors (:issue:`498`)

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Add middleware methods to get files/images/thumbs paths (:issue:`490`)

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Improve offsite middleware tests (:issue:`478`)

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Add a way to skip default Referer header set by RefererMiddleware (:issue:`475`)

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Do not send x-gzip in default Accept-Encoding header (:issue:`469`)

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Support defining http error handling using settings (:issue:`466`)

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Use modern python idioms wherever you find legacies (:issue:`497`)

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Improve and correct documentation (:issue:`527`, :issue:`524`, :issue:`521`, :issue:`517`, :issue:`512`, :issue:`505`, :issue:`502`, :issue:`489`, :issue:`465`, :issue:`460`, :issue:`425`, :issue:`536`)

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Fixes

Update Selector class imports in CrawlSpider template (:issue:`484`)

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Fix unexistent reference to engine.slots (:issue:`464`)

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Do not try to call body_as_unicode() on a non-TextResponse instance (:issue:`462`)

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Warn when subclassing XPathItemLoader, previously it only warned on instantiation. (:issue:`523`)

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Warn when subclassing XPathSelector, previously it only warned on instantiation. (:issue:`537`)

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Multiple fixes to memory stats (:issue:`531`, :issue:`530`, :issue:`529`)

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Fix overriding url in FormRequest.from_response() (:issue:`507`)

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Fix tests runner under pip 1.5 (:issue:`513`)

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Fix logging error when spider name is unicode (:issue:`479`)

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Scrapy 0.20.2 (released 2013-12-09)

Update CrawlSpider Template with Selector changes (:commit:`6d1457d`)

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fix method name in tutorial. closes GH-480 (:commit:`b4fc359`

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Scrapy 0.20.1 (released 2013-11-28)

include_package_data is required to build wheels from published sources (:commit:`5ba1ad5`)

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process_parallel was leaking the failures on its internal deferreds. closes #458 (:commit:`419a780`)

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Scrapy 0.20.0 (released 2013-11-08)

Enhancements

New Selector's API including CSS selectors (:issue:`395` and :issue:`426`),

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Request/Response url/body attributes are now immutable (modifying them had been deprecated for a long time)
:setting:`ITEM_PIPELINES` is now defined as a dict (instead of a list)

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Sitemap spider can fetch alternate URLs (:issue:`360`)

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Selector.remove_namespaces() now remove namespaces from element's attributes. (:issue:`416`)

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Paved the road for Python 3.3+ (:issue:`435`, :issue:`436`, :issue:`431`, :issue:`452`)

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New item exporter using native python types with nesting support (:issue:`366`)

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Tune HTTP1.1 pool size so it matches concurrency defined by settings (:commit:`b43b5f575`)

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scrapy.mail.MailSender now can connect over TLS or upgrade using STARTTLS (:issue:`327`)

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New FilesPipeline with functionality factored out from ImagesPipeline (:issue:`370`, :issue:`409`)

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Recommend Pillow instead of PIL for image handling (:issue:`317`)

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Added debian packages for Ubuntu quantal and raring (:commit:`86230c0`)

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Mock server (used for tests) can listen for HTTPS requests (:issue:`410`)

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Remove multi spider support from multiple core components (:issue:`422`, :issue:`421`, :issue:`420`, :issue:`419`, :issue:`423`, :issue:`418`)

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Travis-CI now tests Scrapy changes against development versions of w3lib and queuelib python packages.
Add pypy 2.1 to continuous integration tests (:commit:`ecfa7431`)

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Pylinted, pep8 and removed old-style exceptions from source (:issue:`430`, :issue:`432`)

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Use importlib for parametric imports (:issue:`445`)

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Handle a regression introduced in Python 2.7.5 that affects XmlItemExporter (:issue:`372`)

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Bugfix crawling shutdown on SIGINT (:issue:`450`)

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Do not submit reset type inputs in FormRequest.from_response (:commit:`b326b87`)

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Do not silence download errors when request errback raises an exception (:commit:`684cfc0`)

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Bugfixes

Fix tests under Django 1.6 (:commit:`b6bed44c`)

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Lot of bugfixes to retry middleware under disconnections using HTTP 1.1 download handler
Fix inconsistencies among Twisted releases (:issue:`406`)

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Fix scrapy shell bugs (:issue:`418`, :issue:`407`)

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Fix invalid variable name in setup.py (:issue:`429`)

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Fix tutorial references (:issue:`387`)

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Improve request-response docs (:issue:`391`)

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Improve best practices docs (:issue:`399`, :issue:`400`, :issue:`401`, :issue:`402`)

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Improve django integration docs (:issue:`404`)

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Document bindaddress request meta (:commit:`37c24e01d7`)

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Improve Request class documentation (:issue:`226`)

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Other

Dropped Python 2.6 support (:issue:`448`)

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Add cssselect python package as install dependency
Drop libxml2 and multi selector's backend support, lxml is required from now on.
Minimum Twisted version increased to 10.0.0, dropped Twisted 8.0 support.
Running test suite now requires mock python library (:issue:`390`)

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Thanks

Thanks to everyone who contribute to this release!

List of contributors sorted by number of commits:

69 Daniel Graña <dangra@...>
37 Pablo Hoffman <pablo@...>
13 Mikhail Korobov <kmike84@...>
 9 Alex Cepoi <alex.cepoi@...>
 9 alexanderlukanin13 <alexander.lukanin.13@...>
 8 Rolando Espinoza La fuente <darkrho@...>
 8 Lukasz Biedrycki <lukasz.biedrycki@...>
 6 Nicolas Ramirez <nramirez.uy@...>
 3 Paul Tremberth <paul.tremberth@...>
 2 Martin Olveyra <molveyra@...>
 2 Stefan <misc@...>
 2 Rolando Espinoza <darkrho@...>
 2 Loren Davie <loren@...>
 2 irgmedeiros <irgmedeiros@...>
 1 Stefan Koch <taikano@...>
 1 Stefan <cct@...>
 1 scraperdragon <dragon@...>
 1 Kumara Tharmalingam <ktharmal@...>
 1 Francesco Piccinno <stack.box@...>
 1 Marcos Campal <duendex@...>
 1 Dragon Dave <dragon@...>
 1 Capi Etheriel <barraponto@...>
 1 cacovsky <amarquesferraz@...>
 1 Berend Iwema <berend@...>

Scrapy 0.18.4 (released 2013-10-10)

IPython refuses to update the namespace. fix #396 (:commit:`3d32c4f`)

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Fix AlreadyCalledError replacing a request in shell command. closes #407 (:commit:`b1d8919`)

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Fix start_requests laziness and early hangs (:commit:`89faf52`)

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Scrapy 0.18.3 (released 2013-10-03)

fix regression on lazy evaluation of start requests (:commit:`12693a5`)

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forms: do not submit reset inputs (:commit:`e429f63`)

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increase unittest timeouts to decrease travis false positive failures (:commit:`912202e`)

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backport master fixes to json exporter (:commit:`cfc2d46`)

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Fix permission and set umask before generating sdist tarball (:commit:`06149e0`)

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Scrapy 0.18.2 (released 2013-09-03)

Backport scrapy check command fixes and backward compatible multi crawler process(:issue:`339`)

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Scrapy 0.18.1 (released 2013-08-27)

remove extra import added by cherry picked changes (:commit:`d20304e`)

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fix crawling tests under twisted pre 11.0.0 (:commit:`1994f38`)

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py26 can not format zero length fields {} (:commit:`abf756f`)

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test PotentiaDataLoss errors on unbound responses (:commit:`b15470d`)

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Treat responses without content-length or Transfer-Encoding as good responses (:commit:`c4bf324`)

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do no include ResponseFailed if http11 handler is not enabled (:commit:`6cbe684`)

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New HTTP client wraps connection losts in ResponseFailed exception. fix #373 (:commit:`1a20bba`)

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limit travis-ci build matrix (:commit:`3b01bb8`)

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Merge pull request #375 from peterarenot/patch-1 (:commit:`fa766d7`)

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Fixed so it refers to the correct folder (:commit:`3283809`)

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added quantal & raring to support ubuntu releases (:commit:`1411923`)

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fix retry middleware which didn't retry certain connection errors after the upgrade to http1 client, closes GH-373 (:commit:`bb35ed0`)

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fix XmlItemExporter in Python 2.7.4 and 2.7.5 (:commit:`de3e451`)

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minor updates to 0.18 release notes (:commit:`c45e5f1`)

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fix contributters list format (:commit:`0b60031`)

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Scrapy 0.18.0 (released 2013-08-09)

Lot of improvements to testsuite run using Tox, including a way to test on pypi
Handle GET parameters for AJAX crawleable urls (:commit:`3fe2a32`)

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Use lxml recover option to parse sitemaps (:issue:`347`)

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Bugfix cookie merging by hostname and not by netloc (:issue:`352`)

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Support disabling HttpCompressionMiddleware using a flag setting (:issue:`359`)

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Support xml namespaces using iternodes parser in XMLFeedSpider (:issue:`12`)

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Support dont_cache request meta flag (:issue:`19`)

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Bugfix scrapy.utils.gz.gunzip broken by changes in python 2.7.4 (:commit:`4dc76e`)

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Bugfix url encoding on SgmlLinkExtractor (:issue:`24`)

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Bugfix TakeFirst processor shouldn't discard zero (0) value (:issue:`59`)

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Support nested items in xml exporter (:issue:`66`)

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Improve cookies handling performance (:issue:`77`)

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Log dupe filtered requests once (:issue:`105`)

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Split redirection middleware into status and meta based middlewares (:issue:`78`)

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Use HTTP1.1 as default downloader handler (:issue:`109` and :issue:`318`)

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Support xpath form selection on FormRequest.from_response (:issue:`185`)

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Bugfix unicode decoding error on SgmlLinkExtractor (:issue:`199`)

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Bugfix signal dispatching on pypi interpreter (:issue:`205`)

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Improve request delay and concurrency handling (:issue:`206`)

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Add RFC2616 cache policy to HttpCacheMiddleware (:issue:`212`)

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Allow customization of messages logged by engine (:issue:`214`)

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Multiples improvements to DjangoItem (:issue:`217`, :issue:`218`, :issue:`221`)

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Extend Scrapy commands using setuptools entry points (:issue:`260`)

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Allow spider allowed_domains value to be set/tuple (:issue:`261`)

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Support settings.getdict (:issue:`269`)

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Simplify internal scrapy.core.scraper slot handling (:issue:`271`)

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Added Item.copy (:issue:`290`)

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Collect idle downloader slots (:issue:`297`)

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Add ftp:// scheme downloader handler (:issue:`329`)

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Added downloader benchmark webserver and spider tools :ref:`benchmarking`

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Moved persistent (on disk) queues to a separate project (queuelib) which scrapy now depends on
Add scrapy commands using external libraries (:issue:`260`)

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Added --pdb option to scrapy command line tool
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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Several improvements to spider contracts
New default middleware named MetaRefreshMiddldeware that handles meta-refresh html tag redirections,
MetaRefreshMiddldeware and RedirectMiddleware have different priorities to address #62
added from_crawler method to spiders
added system tests with mock server
more improvements to Mac OS compatibility (thanks Alex Cepoi)
several more cleanups to singletons and multi-spider support (thanks Nicolas Ramirez)
support custom download slots
added --spider option to "shell" command.
log overridden settings when scrapy starts

Thanks to everyone who contribute to this release. Here is a list of contributors sorted by number of commits:

130 Pablo Hoffman <pablo@...>
 97 Daniel Graña <dangra@...>
 20 Nicolás Ramírez <nramirez.uy@...>
 13 Mikhail Korobov <kmike84@...>
 12 Pedro Faustino <pedrobandim@...>
 11 Steven Almeroth <sroth77@...>
  5 Rolando Espinoza La fuente <darkrho@...>
  4 Michal Danilak <mimino.coder@...>
  4 Alex Cepoi <alex.cepoi@...>
  4 Alexandr N Zamaraev (aka tonal) <tonal@...>
  3 paul <paul.tremberth@...>
  3 Martin Olveyra <molveyra@...>
  3 Jordi Llonch <llonchj@...>
  3 arijitchakraborty <myself.arijit@...>
  2 Shane Evans <shane.evans@...>
  2 joehillen <joehillen@...>
  2 Hart <HartSimha@...>
  2 Dan <ellisd23@...>
  1 Zuhao Wan <wanzuhao@...>
  1 whodatninja <blake@...>
  1 vkrest <v.krestiannykov@...>
  1 tpeng <pengtaoo@...>
  1 Tom Mortimer-Jones <tom@...>
  1 Rocio Aramberri <roschegel@...>
  1 Pedro <pedro@...>
  1 notsobad <wangxiaohugg@...>
  1 Natan L <kuyanatan.nlao@...>
  1 Mark Grey <mark.grey@...>
  1 Luan <luanpab@...>
  1 Libor Nenadál <libor.nenadal@...>
  1 Juan M Uys <opyate@...>
  1 Jonas Brunsgaard <jonas.brunsgaard@...>
  1 Ilya Baryshev <baryshev@...>
  1 Hasnain Lakhani <m.hasnain.lakhani@...>
  1 Emanuel Schorsch <emschorsch@...>
  1 Chris Tilden <chris.tilden@...>
  1 Capi Etheriel <barraponto@...>
  1 cacovsky <amarquesferraz@...>
  1 Berend Iwema <berend@...>

Scrapy 0.16.5 (released 2013-05-30)

obey request method when scrapy deploy is redirected to a new endpoint (:commit:`8c4fcee`)

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fix inaccurate downloader middleware documentation. refs #280 (:commit:`40667cb`)

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doc: remove links to diveintopython.org, which is no longer available. closes #246 (:commit:`bd58bfa`)

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Find form nodes in invalid html5 documents (:commit:`e3d6945`)

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Fix typo labeling attrs type bool instead of list (:commit:`a274276`)

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Scrapy 0.16.4 (released 2013-01-23)

fixes spelling errors in documentation (:commit:`6d2b3aa`)

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add doc about disabling an extension. refs #132 (:commit:`c90de33`)

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Fixed error message formatting. log.err() doesn't support cool formatting and when error occurred, the message was: "ERROR: Error processing %(item)s" (:commit:`c16150c`)

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lint and improve images pipeline error logging (:commit:`56b45fc`)

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fixed doc typos (:commit:`243be84`)

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add documentation topics: Broad Crawls & Common Practies (:commit:`1fbb715`)

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fix bug in scrapy parse command when spider is not specified explicitly. closes #209 (:commit:`c72e682`)

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Update docs/topics/commands.rst (:commit:`28eac7a`)

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Scrapy 0.16.3 (released 2012-12-07)

Remove concurrency limitation when using download delays and still ensure inter-request delays are enforced (:commit:`487b9b5`)

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add error details when image pipeline fails (:commit:`8232569`)

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improve mac os compatibility (:commit:`8dcf8aa`)

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setup.py: use README.rst to populate long_description (:commit:`7b5310d`)

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doc: removed obsolete references to ClientForm (:commit:`80f9bb6`)

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correct docs for default storage backend (:commit:`2aa491b`)

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doc: removed broken proxyhub link from FAQ (:commit:`bdf61c4`)

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Fixed docs typo in SpiderOpenCloseLogging example (:commit:`7184094`)

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Scrapy 0.16.2 (released 2012-11-09)

scrapy contracts: python2.6 compat (:commit:`a4a9199`)

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scrapy contracts verbose option (:commit:`ec41673`)

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proper unittest-like output for scrapy contracts (:commit:`86635e4`)

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added open_in_browser to debugging doc (:commit:`c9b690d`)

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removed reference to global scrapy stats from settings doc (:commit:`dd55067`)

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Fix SpiderState bug in Windows platforms (:commit:`58998f4`)

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Scrapy 0.16.1 (released 2012-10-26)

fixed LogStats extension, which got broken after a wrong merge before the 0.16 release (:commit:`8c780fd`)

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better backwards compatibility for scrapy.conf.settings (:commit:`3403089`)

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extended documentation on how to access crawler stats from extensions (:commit:`c4da0b5`)

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removed .hgtags (no longer needed now that scrapy uses git) (:commit:`d52c188`)

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fix dashes under rst headers (:commit:`fa4f7f9`)

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set release date for 0.16.0 in news (:commit:`e292246`)

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Scrapy 0.16.0 (released 2012-10-18)

Scrapy changes:

added :ref:`topics-contracts`, a mechanism for testing spiders in a formal/reproducible way

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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, backwards compatibility is kept on the Stats Collector API and signals.
added :meth:`~scrapy.contrib.spidermiddleware.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.
dropped Signals singleton. Signals should now be accesed through the Crawler.signals attribute. See the signals documentation for more info.
dropped Stats Collector singleton. Stats can now be accessed through the Crawler.stats attribute. See the stats collection documentation for more info.
documented :ref:`topics-api`

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lxml is now the default selectors backend instead of libxml2
ported FormRequest.from_response() to use lxml instead of ClientForm
removed modules: scrapy.xlib.BeautifulSoup and scrapy.xlib.ClientForm
SitemapSpider: added support for sitemap urls ending in .xml and .xml.gz, even if they advertise a wrong content type (:commit:`10ed28b`)

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StackTraceDump extension: also dump trackref live references (:commit:`fe2ce93`)

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nested items now fully supported in JSON and JSONLines exporters
added :reqmeta:`cookiejar` Request meta key to support multiple cookie sessions per spider

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decoupled encoding detection code to w3lib.encoding, and ported Scrapy code to use that module
dropped support for Python 2.5. See https://blog.scrapinghub.com/2012/02/27/scrapy-0-15-dropping-support-for-python-2-5/
dropped support for Twisted 2.5
added :setting:`REFERER_ENABLED` setting, to control referer middleware

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changed default user agent to: Scrapy/VERSION (+http://scrapy.org)
removed (undocumented) HTMLImageLinkExtractor class from scrapy.contrib.linkextractors.image
removed per-spider settings (to be replaced by instantiating multiple crawler objects)
USER_AGENT spider attribute will no longer work, use user_agent attribute instead
DOWNLOAD_TIMEOUT spider attribute will no longer work, use download_timeout attribute instead
removed ENCODING_ALIASES setting, as encoding auto-detection has been moved to the w3lib library
promoted :ref:`topics-djangoitem` to main contrib

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LogFormatter method now return dicts(instead of strings) to support lazy formatting (:issue:`164`, :commit:`dcef7b0`)

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downloader handlers (:setting:`DOWNLOAD_HANDLERS` setting) now receive settings as the first argument of the constructor

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replaced memory usage acounting with (more portable) resource module, removed scrapy.utils.memory module
removed signal: scrapy.mail.mail_sent
removed TRACK_REFS setting, now :ref:`trackrefs <topics-leaks-trackrefs>` is always enabled

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DBM is now the default storage backend for HTTP cache middleware
number of log messages (per level) are now tracked through Scrapy stats (stat name: log_count/LEVEL)
number received responses are now tracked through Scrapy stats (stat name: response_received_count)
removed scrapy.log.started attribute

Scrapy 0.14.4

added precise to supported ubuntu distros (:commit:`b7e46df`)

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fixed bug in json-rpc webservice reported in https://groups.google.com/forum/#!topic/scrapy-users/qgVBmFybNAQ/discussion. also removed no longer supported 'run' command from extras/scrapy-ws.py (:commit:`340fbdb`)

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meta tag attributes for content-type http equiv can be in any order. #123 (:commit:`0cb68af`)

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replace "import Image" by more standard "from PIL import Image". closes #88 (:commit:`4d17048`)

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return trial status as bin/runtests.sh exit value. #118 (:commit:`b7b2e7f`)

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Scrapy 0.14.3

forgot to include pydispatch license. #118 (:commit:`fd85f9c`)

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include egg files used by testsuite in source distribution. #118 (:commit:`c897793`)

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update docstring in project template to avoid confusion with genspider command, which may be considered as an advanced feature. refs #107 (:commit:`2548dcc`)

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added note to docs/topics/firebug.rst about google directory being shut down (:commit:`668e352`)

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dont discard slot when empty, just save in another dict in order to recycle if needed again. (:commit:`8e9f607`)

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do not fail handling unicode xpaths in libxml2 backed selectors (:commit:`b830e95`)

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fixed minor mistake in Request objects documentation (:commit:`bf3c9ee`)

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fixed minor defect in link extractors documentation (:commit:`ba14f38`)

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removed some obsolete remaining code related to sqlite support in scrapy (:commit:`0665175`)

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Scrapy 0.14.2

move buffer pointing to start of file before computing checksum. refs #92 (:commit:`6a5bef2`)

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Compute image checksum before persisting images. closes #92 (:commit:`9817df1`)

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remove leaking references in cached failures (:commit:`673a120`)

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fixed bug in MemoryUsage extension: get_engine_status() takes exactly 1 argument (0 given) (:commit:`11133e9`)

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fixed struct.error on http compression middleware. closes #87 (:commit:`1423140`)

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ajax crawling wasn't expanding for unicode urls (:commit:`0de3fb4`)

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Catch start_requests iterator errors. refs #83 (:commit:`454a21d`)

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Speed-up libxml2 XPathSelector (:commit:`2fbd662`)

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updated versioning doc according to recent changes (:commit:`0a070f5`)

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scrapyd: fixed documentation link (:commit:`2b4e4c3`)

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extras/makedeb.py: no longer obtaining version from git (:commit:`caffe0e`)

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Scrapy 0.14.1

extras/makedeb.py: no longer obtaining version from git (:commit:`caffe0e`)

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bumped version to 0.14.1 (:commit:`6cb9e1c`)

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fixed reference to tutorial directory (:commit:`4b86bd6`)

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doc: removed duplicated callback argument from Request.replace() (:commit:`1aeccdd`)

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fixed formatting of scrapyd doc (:commit:`8bf19e6`)

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Dump stacks for all running threads and fix engine status dumped by StackTraceDump extension (:commit:`14a8e6e`)

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added comment about why we disable ssl on boto images upload (:commit:`5223575`)

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SSL handshaking hangs when doing too many parallel connections to S3 (:commit:`63d583d`)

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change tutorial to follow changes on dmoz site (:commit:`bcb3198`)

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Avoid _disconnectedDeferred AttributeError exception in Twisted>=11.1.0 (:commit:`98f3f87`)

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allow spider to set autothrottle max concurrency (:commit:`175a4b5`)

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Scrapy 0.14

New features and settings

Support for AJAX crawleable urls
New persistent scheduler that stores requests on disk, allowing to suspend and resume crawls (:rev:`2737`)

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added -o option to scrapy crawl, a shortcut for dumping scraped items into a file (or standard output using -)
Added support for passing custom settings to Scrapyd schedule.json api (:rev:`2779`, :rev:`2783`)

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New ChunkedTransferMiddleware (enabled by default) to support chunked transfer encoding (:rev:`2769`)

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Add boto 2.0 support for S3 downloader handler (:rev:`2763`)

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Added marshal to formats supported by feed exports (:rev:`2744`)

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In request errbacks, offending requests are now received in failure.request attribute (:rev:`2738`)

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Big downloader refactoring to support per domain/ip concurrency limits (:rev:`2732`)
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- CONCURRENT_REQUESTS_PER_SPIDER setting has been deprecated and replaced by:
  
  :setting:`CONCURRENT_REQUESTS`, :setting:`CONCURRENT_REQUESTS_PER_DOMAIN`, :setting:`CONCURRENT_REQUESTS_PER_IP`
  
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- check the documentation for more details
Added builtin caching DNS resolver (:rev:`2728`)

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Moved Amazon AWS-related components/extensions (SQS spider queue, SimpleDB stats collector) to a separate project: [scaws](https://github.com/scrapinghub/scaws) (:rev:`2706`, :rev:`2714`)

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Moved spider queues to scrapyd: scrapy.spiderqueue -> scrapyd.spiderqueue (:rev:`2708`)

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Moved sqlite utils to scrapyd: scrapy.utils.sqlite -> scrapyd.sqlite (:rev:`2781`)

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Real support for returning iterators on start_requests() method. The iterator is now consumed during the crawl when the spider is getting idle (:rev:`2704`)

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Added :setting:`REDIRECT_ENABLED` setting to quickly enable/disable the redirect middleware (:rev:`2697`)

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Added :setting:`RETRY_ENABLED` setting to quickly enable/disable the retry middleware (:rev:`2694`)

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Added CloseSpider exception to manually close spiders (:rev:`2691`)

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Improved encoding detection by adding support for HTML5 meta charset declaration (:rev:`2690`)

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Refactored close spider behavior to wait for all downloads to finish and be processed by spiders, before closing the spider (:rev:`2688`)

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Added SitemapSpider (see documentation in Spiders page) (:rev:`2658`)

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Added LogStats extension for periodically logging basic stats (like crawled pages and scraped items) (:rev:`2657`)

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Make handling of gzipped responses more robust (#319, :rev:`2643`). Now Scrapy will try and decompress as much as possible from a gzipped response, instead of failing with an IOError.

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Simplified !MemoryDebugger extension to use stats for dumping memory debugging info (:rev:`2639`)

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Added new command to edit spiders: scrapy edit (:rev:`2636`) and -e flag to genspider command that uses it (:rev:`2653`)

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Changed default representation of items to pretty-printed dicts. (:rev:`2631`). This improves default logging by making log more readable in the default case, for both Scraped and Dropped lines.

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Added :signal:`spider_error` signal (:rev:`2628`)

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Added :setting:`COOKIES_ENABLED` setting (:rev:`2625`)

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Stats are now dumped to Scrapy log (default value of :setting:`STATS_DUMP` setting has been changed to True). This is to make Scrapy users more aware of Scrapy stats and the data that is collected there.

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Added support for dynamically adjusting download delay and maximum concurrent requests (:rev:`2599`)

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Added new DBM HTTP cache storage backend (:rev:`2576`)

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Added listjobs.json API to Scrapyd (:rev:`2571`)

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CsvItemExporter: added join_multivalued parameter (:rev:`2578`)

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Added namespace support to xmliter_lxml (:rev:`2552`)

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Improved cookies middleware by making COOKIES_DEBUG nicer and documenting it (:rev:`2579`)

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Several improvements to Scrapyd and Link extractors

Code rearranged and removed

Merged item passed and item scraped concepts, as they have often proved confusing in the past. This means: (:rev:`2630`)
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- original item_scraped signal was removed
- original item_passed signal was renamed to item_scraped
- old log lines Scraped Item... were removed
- old log lines Passed Item... were renamed to Scraped Item... lines and downgraded to DEBUG level
Reduced Scrapy codebase by striping part of Scrapy code into two new libraries:
- w3lib (several functions from scrapy.utils.{http,markup,multipart,response,url}, done in :rev:`2584`)
  
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- scrapely (was scrapy.contrib.ibl, done in :rev:`2586`)
  
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Removed unused function: scrapy.utils.request.request_info() (:rev:`2577`)

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Removed googledir project from examples/googledir. There's now a new example project called dirbot available on github: https://github.com/scrapy/dirbot
Removed support for default field values in Scrapy items (:rev:`2616`)

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Removed experimental crawlspider v2 (:rev:`2632`)

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Removed scheduler middleware to simplify architecture. Duplicates filter is now done in the scheduler itself, using the same dupe fltering class as before (DUPEFILTER_CLASS setting) (:rev:`2640`)

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Removed support for passing urls to scrapy crawl command (use scrapy parse instead) (:rev:`2704`)

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Removed deprecated Execution Queue (:rev:`2704`)

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Removed (undocumented) spider context extension (from scrapy.contrib.spidercontext) (:rev:`2780`)

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removed CONCURRENT_SPIDERS setting (use scrapyd maxproc instead) (:rev:`2789`)

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Renamed attributes of core components: downloader.sites -> downloader.slots, scraper.sites -> scraper.slots (:rev:`2717`, :rev:`2718`)

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Renamed setting CLOSESPIDER_ITEMPASSED to :setting:`CLOSESPIDER_ITEMCOUNT` (:rev:`2655`). Backwards compatibility kept.

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Scrapy 0.12

The numbers like #NNN reference tickets in the old issue tracker (Trac) which is no longer available.

New features and improvements

Passed item is now sent in the item argument of the :signal:`item_passed` (#273)

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Added verbose option to scrapy version command, useful for bug reports (#298)
HTTP cache now stored by default in the project data dir (#279)
Added project data storage directory (#276, #277)
Documented file structure of Scrapy projects (see command-line tool doc)
New lxml backend for XPath selectors (#147)
Per-spider settings (#245)
Support exit codes to signal errors in Scrapy commands (#248)
Added -c argument to scrapy shell command
Made libxml2 optional (#260)
New deploy command (#261)
Added :setting:`CLOSESPIDER_PAGECOUNT` setting (#253)

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Added :setting:`CLOSESPIDER_ERRORCOUNT` setting (#254)

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Scrapyd changes

Scrapyd now uses one process per spider
It stores one log file per spider run, and rotate them keeping the lastest 5 logs per spider (by default)
A minimal web ui was added, available at http://localhost:6800 by default
There is now a scrapy server command to start a Scrapyd server of the current project

Changes to settings

added HTTPCACHE_ENABLED setting (False by default) to enable HTTP cache middleware
changed HTTPCACHE_EXPIRATION_SECS semantics: now zero means "never expire".

Deprecated/obsoleted functionality

Deprecated runserver command in favor of server command which starts a Scrapyd server. See also: Scrapyd changes
Deprecated queue command in favor of using Scrapyd schedule.json API. See also: Scrapyd changes
Removed the !LxmlItemLoader (experimental contrib which never graduated to main contrib)

Scrapy 0.10

The numbers like #NNN reference tickets in the old issue tracker (Trac) which is no longer available.

New features and improvements

New Scrapy service called scrapyd for deploying Scrapy crawlers in production (#218) (documentation available)
Simplified Images pipeline usage which doesn't require subclassing your own images pipeline now (#217)
Scrapy shell now shows the Scrapy log by default (#206)
Refactored execution queue in a common base code and pluggable backends called "spider queues" (#220)
New persistent spider queue (based on SQLite) (#198), available by default, which allows to start Scrapy in server mode and then schedule spiders to run.
Added documentation for Scrapy command-line tool and all its available sub-commands. (documentation available)
Feed exporters with pluggable backends (#197) (documentation available)
Deferred signals (#193)
Added two new methods to item pipeline open_spider(), close_spider() with deferred support (#195)
Support for overriding default request headers per spider (#181)
Replaced default Spider Manager with one with similar functionality but not depending on Twisted Plugins (#186)
Splitted Debian package into two packages - the library and the service (#187)
Scrapy log refactoring (#188)
New extension for keeping persistent spider contexts among different runs (#203)
Added dont_redirect request.meta key for avoiding redirects (#233)
Added dont_retry request.meta key for avoiding retries (#234)

Command-line tool changes

New scrapy command which replaces the old scrapy-ctl.py (#199) - there is only one global scrapy command now, instead of one scrapy-ctl.py per project - Added scrapy.bat script for running more conveniently from Windows
Added bash completion to command-line tool (#210)
Renamed command start to runserver (#209)

API changes

url and body attributes of Request objects are now read-only (#230)
Request.copy() and Request.replace() now also copies their callback and errback attributes (#231)
Removed UrlFilterMiddleware from scrapy.contrib (already disabled by default)
Offsite middelware doesn't filter out any request coming from a spider that doesn't have a allowed_domains attribute (#225)
Removed Spider Manager load() method. Now spiders are loaded in the constructor itself.
Changes to Scrapy Manager (now called "Crawler"):
- scrapy.core.manager.ScrapyManager class renamed to scrapy.crawler.Crawler
- scrapy.core.manager.scrapymanager singleton moved to scrapy.project.crawler
Moved module: scrapy.contrib.spidermanager to scrapy.spidermanager
Spider Manager singleton moved from scrapy.spider.spiders to the spiders` attribute of ``scrapy.project.crawler singleton.
moved Stats Collector classes: (#204)
- scrapy.stats.collector.StatsCollector to scrapy.statscol.StatsCollector
- scrapy.stats.collector.SimpledbStatsCollector to scrapy.contrib.statscol.SimpledbStatsCollector
default per-command settings are now specified in the default_settings attribute of command object class (#201)
changed arguments of Item pipeline process_item() method from (spider, item) to (item, spider)
- backwards compatibility kept (with deprecation warning)
moved scrapy.core.signals module to scrapy.signals
- backwards compatibility kept (with deprecation warning)
moved scrapy.core.exceptions module to scrapy.exceptions
- backwards compatibility kept (with deprecation warning)
added handles_request() class method to BaseSpider
dropped scrapy.log.exc() function (use scrapy.log.err() instead)
dropped component argument of scrapy.log.msg() function
dropped scrapy.log.log_level attribute
Added from_settings() class methods to Spider Manager, and Item Pipeline Manager

Changes to settings

Added HTTPCACHE_IGNORE_SCHEMES setting to ignore certain schemes on !HttpCacheMiddleware (#225)
Added SPIDER_QUEUE_CLASS setting which defines the spider queue to use (#220)
Added KEEP_ALIVE setting (#220)
Removed SERVICE_QUEUE setting (#220)
Removed COMMANDS_SETTINGS_MODULE setting (#201)
Renamed REQUEST_HANDLERS to DOWNLOAD_HANDLERS and make download handlers classes (instead of functions)

Scrapy 0.9

The numbers like #NNN reference tickets in the old issue tracker (Trac) which is no longer available.

New features and improvements

Added SMTP-AUTH support to scrapy.mail
New settings added: MAIL_USER, MAIL_PASS (:rev:`2065` | #149)

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Added new scrapy-ctl view command - To view URL in the browser, as seen by Scrapy (:rev:`2039`)

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Added web service for controlling Scrapy process (this also deprecates the web console. (:rev:`2053` | #167)

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Support for running Scrapy as a service, for production systems (:rev:`1988`, :rev:`2054`, :rev:`2055`, :rev:`2056`, :rev:`2057` | #168)

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Added wrapper induction library (documentation only available in source code for now). (:rev:`2011`)

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Simplified and improved response encoding support (:rev:`1961`, :rev:`1969`)

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Added LOG_ENCODING setting (:rev:`1956`, documentation available)

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Added RANDOMIZE_DOWNLOAD_DELAY setting (enabled by default) (:rev:`1923`, doc available)

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MailSender is no longer IO-blocking (:rev:`1955` | #146)

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Linkextractors and new Crawlspider now handle relative base tag urls (:rev:`1960` | #148)

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Several improvements to Item Loaders and processors (:rev:`2022`, :rev:`2023`, :rev:`2024`, :rev:`2025`, :rev:`2026`, :rev:`2027`, :rev:`2028`, :rev:`2029`, :rev:`2030`)

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Added support for adding variables to telnet console (:rev:`2047` | #165)

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Support for requests without callbacks (:rev:`2050` | #166)

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API changes

Change Spider.domain_name to Spider.name (SEP-012, :rev:`1975`)

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Response.encoding is now the detected encoding (:rev:`1961`)

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HttpErrorMiddleware now returns None or raises an exception (:rev:`2006` | #157)

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scrapy.command modules relocation (:rev:`2035`, :rev:`2036`, :rev:`2037`)

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Added ExecutionQueue for feeding spiders to scrape (:rev:`2034`)

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Removed ExecutionEngine singleton (:rev:`2039`)

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Ported S3ImagesStore (images pipeline) to use boto and threads (:rev:`2033`)

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Moved module: scrapy.management.telnet to scrapy.telnet (:rev:`2047`)

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Changes to default settings

Changed default SCHEDULER_ORDER to DFO (:rev:`1939`)

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Scrapy 0.8

The numbers like #NNN reference tickets in the old issue tracker (Trac) which is no longer available.

New features

Added DEFAULT_RESPONSE_ENCODING setting (:rev:`1809`)

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Added dont_click argument to FormRequest.from_response() method (:rev:`1813`, :rev:`1816`)

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Added clickdata argument to FormRequest.from_response() method (:rev:`1802`, :rev:`1803`)

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Added support for HTTP proxies (HttpProxyMiddleware) (:rev:`1781`, :rev:`1785`)

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Offsite spider middleware now logs messages when filtering out requests (:rev:`1841`)

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Backwards-incompatible changes

Changed scrapy.utils.response.get_meta_refresh() signature (:rev:`1804`)

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Removed deprecated scrapy.item.ScrapedItem class - use scrapy.item.Item instead (:rev:`1838`)

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Removed deprecated scrapy.xpath module - use scrapy.selector instead. (:rev:`1836`)

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Removed deprecated core.signals.domain_open signal - use core.signals.domain_opened instead (:rev:`1822`)

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log.msg() now receives a spider argument (:rev:`1822`)
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- Old domain argument has been deprecated and will be removed in 0.9. For spiders, you should always use the spider argument and pass spider references. If you really want to pass a string, use the component argument instead.
Changed core signals domain_opened, domain_closed, domain_idle
Changed Item pipeline to use spiders instead of domains
- The domain argument of process_item() item pipeline method was changed to spider, the new signature is: process_item(spider, item) (:rev:`1827` | #105)
  
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- To quickly port your code (to work with Scrapy 0.8) just use spider.domain_name where you previously used domain.
Changed Stats API to use spiders instead of domains (:rev:`1849` | #113)
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- StatsCollector was changed to receive spider references (instead of domains) in its methods (set_value, inc_value, etc).
- added StatsCollector.iter_spider_stats() method
- removed StatsCollector.list_domains() method
- Also, Stats signals were renamed and now pass around spider references (instead of domains). Here's a summary of the changes:
- To quickly port your code (to work with Scrapy 0.8) just use spider.domain_name where you previously used domain. spider_stats contains exactly the same data as domain_stats.
CloseDomain extension moved to scrapy.contrib.closespider.CloseSpider (:rev:`1833`)
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- Its settings were also renamed:
  
  CLOSEDOMAIN_TIMEOUT to CLOSESPIDER_TIMEOUT
  
  CLOSEDOMAIN_ITEMCOUNT to CLOSESPIDER_ITEMCOUNT
Removed deprecated SCRAPYSETTINGS_MODULE environment variable - use SCRAPY_SETTINGS_MODULE instead (:rev:`1840`)

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Renamed setting: REQUESTS_PER_DOMAIN to CONCURRENT_REQUESTS_PER_SPIDER (:rev:`1830`, :rev:`1844`)

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Renamed setting: CONCURRENT_DOMAINS to CONCURRENT_SPIDERS (:rev:`1830`)

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Refactored HTTP Cache middleware
HTTP Cache middleware has been heavilty refactored, retaining the same functionality except for the domain sectorization which was removed. (:rev:`1843` )

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Renamed exception: DontCloseDomain to DontCloseSpider (:rev:`1859` | #120)

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Renamed extension: DelayedCloseDomain to SpiderCloseDelay (:rev:`1861` | #121)

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Removed obsolete scrapy.utils.markup.remove_escape_chars function - use scrapy.utils.markup.replace_escape_chars instead (:rev:`1865`)

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Scrapy 0.7

First release of Scrapy.

</html>

94 KiB Raw Blame History Unescape Escape

Release notes

Scrapy 1.3.3 (2017-03-10)

Bug fixes

Scrapy 1.3.2 (2017-02-13)

Bug fixes

Scrapy 1.3.1 (2017-02-08)

New features

Bug fixes

Documentation

Cleanups

Scrapy 1.3.0 (2016-12-21)

New Features

Dependencies & Cleanups

Scrapy 1.2.3 (2017-03-03)

Scrapy 1.2.2 (2016-12-06)

Bug fixes

Documentation

Other changes

Scrapy 1.2.1 (2016-10-21)

Bug fixes

Documentation

Other changes

Scrapy 1.2.0 (2016-10-03)

New Features

Bug fixes

Refactoring

Tests & Requirements

Documentation

Scrapy 1.1.4 (2017-03-03)

Scrapy 1.1.3 (2016-09-22)

Bug fixes

Documentation

Scrapy 1.1.2 (2016-08-18)

Bug fixes

Scrapy 1.1.1 (2016-07-13)

Bug fixes

New features

Documentation

Tests

Scrapy 1.1.0 (2016-05-11)

Beta Python 3 Support

Additional New Features and Enhancements

Deprecations and Removals

Relocations

Bugfixes

Scrapy 1.0.7 (2017-03-03)

Scrapy 1.0.6 (2016-05-04)

Scrapy 1.0.5 (2016-02-04)

Scrapy 1.0.4 (2015-12-30)

Scrapy 1.0.3 (2015-08-11)

Scrapy 1.0.2 (2015-08-06)

Scrapy 1.0.1 (2015-07-01)

Scrapy 1.0.0 (2015-06-19)

Support for returning dictionaries in spiders

Per-spider settings (GSoC 2014)

Python Logging

Crawler API refactoring (GSoC 2014)

Module Relocations

Full list of relocations

Changelog

Scrapy 0.24.6 (2015-04-20)

Scrapy 0.24.5 (2015-02-25)

Scrapy 0.24.4 (2014-08-09)

Scrapy 0.24.3 (2014-08-09)

Scrapy 0.24.2 (2014-07-08)

Scrapy 0.24.1 (2014-06-27)

Scrapy 0.24.0 (2014-06-26)

Enhancements

Bugfixes

Scrapy 0.22.2 (released 2014-02-14)

Scrapy 0.22.1 (released 2014-02-08)

Scrapy 0.22.0 (released 2014-01-17)

Enhancements

Fixes

Scrapy 0.20.2 (released 2013-12-09)

Scrapy 0.20.1 (released 2013-11-28)

Scrapy 0.20.0 (released 2013-11-08)

Enhancements

Bugfixes

94 KiB

Raw Blame History