CHANGES.rst

Changes

0.9.0 (2024-09-17)

• Now requires zyte-common-items >= 0.22.0.
• New :ref:`Google Search spider template <google-search>`, built on top of Zyte API’s :http:`request:serp`.
• The heuristics of the :ref:`e-commerce spider template <e-commerce>` to ignore certain URLs when following category links now also handles subdomains. For example, before https://example.com/blog was ignored, now https://blog.example.com is also ignored.
• In the :ref:`spider parameters JSON schema <params-schema>`, the :class:`~zyte_spider_templates.spiders.ecommerce.EcommerceSpiderParams.crawl_strategy` parameter of the :ref:`e-commerce spider template <e-commerce>` switches position, from being the last parameter to being between :class:`~zyte_spider_templates.spiders.ecommerce.EcommerceSpiderParams.urls_file` and :class:`~zyte_spider_templates.spiders.ecommerce.EcommerceSpiderParams.geolocation`.
• Removed the valid_page_types attribute of :class:`zyte_spider_templates.middlewares.CrawlingLogsMiddleware`.

0.8.0 (2024-08-21)

• Added new input parameters:

  • urls accepts a newline-delimited list of URLs.
  • urls_file accepts a URL that points to a plain-text file with a newline-delimited list of URLs.

  Only one of url, urls and urls_file should be used at a time.

• Added new crawling strategies:

  • automatic - uses heuristics to see if an input URL is a homepage, for which it uses a modified full strategy where other links are discovered only in the homepage. Otherwise, it assumes it's a navigation page and uses the existing navigation strategy.
  • direct_item - input URLs are directly extracted as products.

• Added new parameters classes: LocationParam and PostalAddress. Note that these are available for use when customizing the templates and are not currently being utilized by any template.

• Backward incompatible changes:

  • automatic becomes the new default crawling strategy instead of full.

• CI test improvements.

0.7.2 (2024-05-07)

• Implemented :ref:`mixin classes for spider parameters <parameter-mixins>`, to improve reuse.
• Improved docs, providing an example about overriding existing parameters when :ref:`customizing parameters <custom-params>`, and featuring :class:`~web_poet.AnyResponse` in the :ref:`example about overriding parsing <override-parsing>`.

0.7.1 (2024-02-22)

• The :class:`~zyte_spider_templates.spiders.ecommerce.EcommerceSpiderParams.crawl_strategy` parameter of :class:`~zyte_spider_templates.spiders.ecommerce.EcommerceSpider` now defaults to :attr:`~zyte_spider_templates.spiders.ecommerce.EcommerceCrawlStrategy.full` instead of :attr:`~zyte_spider_templates.spiders.ecommerce.EcommerceCrawlStrategy.navigation`. We also reworded some descriptions of :enum:`~.EcommerceCrawlStrategy` values for clarification.

0.7.0 (2024-02-09)

• Updated requirement versions:
  • :doc:`scrapy-poet <scrapy-poet:index>` >= 0.21.0
  • :doc:`scrapy-zyte-api <scrapy-zyte-api:index>` >= 0.16.0
• With the updated dependencies above, this fixes the issue of having 2 separate Zyte API Requests (productNavigation and httpResponseBody) for the same URL. Note that this issue only occurs when requesting product navigation pages.
• Moved :class:`zyte_spider_templates.spiders.ecommerce.ExtractFrom` into :class:`zyte_spider_templates.spiders.base.ExtractFrom`.

0.6.1 (2024-02-02)

• Improved the :attr:`zyte_spider_templates.spiders.base.BaseSpiderParams.url` description.

0.6.0 (2024-01-31)

• Fixed the extract_from spider parameter that wasn't working.
• The "www." prefix is now removed when setting the spider's :attr:`~scrapy.Spider.allowed_domains`.
• The :attr:`zyte_common_items.ProductNavigation.nextPage` link won't be crawled if :attr:`zyte_common_items.ProductNavigation.items` is empty.
• :class:`zyte_common_items.Product` items that are dropped due to low probability (below 0.1) are now logged in stats: drop_item/product/low_probability.
• :class:`zyte_spider_templates.pages.HeuristicsProductNavigationPage` now inherits from :class:`zyte_common_items.AutoProductNavigationPage` instead of :class:`zyte_common_items.BaseProductNavigationPage`.
• Moved e-commerce code from :class:`zyte_spider_templates.spiders.base.BaseSpider` to :class:`zyte_spider_templates.spiders.ecommerce.EcommerceSpider`.
• Documentation improvements.

0.5.0 (2023-12-18)

• The zyte_spider_templates.page_objects module is now deprecated in favor of zyte_spider_templates.pages, in line with web_poet.pages.

0.4.0 (2023-12-14)

• Products outside of the target domain can now be crawled using :class:`zyte_spider_templates.middlewares.AllowOffsiteMiddleware`.
• Updated the documentation to also set up zyte_common_items.ZyteItemAdapter.
• The max_requests spider parameter has now a default value of 100. Previously, it was None which was unlimited.
• Improved the description of the max_requests spider parameter.
• Official support for Python 3.12.
• Misc documentation improvements.

0.3.0 (2023-11-03)

• Added documentation.
• Added a middleware that logs information about the crawl in JSON format, :class:`zyte_spider_templates.middlewares.CrawlingLogsMiddleware`. This replaces the old crawling information that was difficult to parse using regular expressions.

0.2.0 (2023-10-30)

• Now requires zyte-common-items >= 0.12.0.
• Added a new crawl strategy, "Pagination Only".
• Improved the request priority calculation based on the metadata probability value.
• CI improvements.

0.1.0 (2023-10-24)

Initial release.