This is the salient point of this code compared to the last example. We have a selector now and this is how we use it. Especially since the user has just come from the shell where the pre-instantiated selector is taken for granted.
default logging by making log more readable in the default case, for both Scraped and Dropped lines.
Projects can still customize how items are represented by overriding the item's __str__ method, as usual.
* Made Item Pipeline Manager a subclass of scrapy.middleware.MiddlewareManager
* Added open_spider/close_spider methods with support for returning deferreds from them
* Inverted the process_item() arguments to be more friendly with deferred
callbacks (backwards compatibility kept through arguments introspection)
* Updated documentation with new methods and process_item() arguments change
* Rename BaseSpider.domain_name to BaseSpider.name
This patch implements the domain_name to name change in BaseSpider class and
change all spider instantiations to use the new attribute.
* Add allowed_domains to spider
This patch implements the merging of spider.domain_name and
spider.extra_domain_names in spider.allowed_domains for offsite checking
purposes.
Note that spider.domain_name is not touched by this patch, only not used.
* Remove spider.domain_name references from scrapy.stats
* Rename domain_stats to spider_stats in MemoryStatsCollector
* Use ``spider`` instead of ``domain`` in SimpledbStatsCollector
* Rename domain_stats_history table to spider_data_history and rename domain
field to spider in MysqlStatsCollector
* Refactor genspider command
The new signature for genspider is: genspider [options] <domain_name>.
Genspider uses domain_name for spider name and for the module name.
* Remove spider.domain_name references
* Update crawl command signature <spider|url>
* docs: updated references to domain_name
* examples/experimental: use spider.name
* genspider: require <name> <domain>
* spidermanager: renamed crawl_domain to crawl_spider_name
* spiderctl: updated references of *domain* to spider
* added backward compatiblity with legacy spider's attributes
'domain_name' and 'extra_domain_names'
