发布于 2016-10-21 23:49:13 | 192 次阅读 | 评论: 0 | 来源: 网友投递
Scrapy Python的爬虫框架
Scrapy是一个Python开发的一个快速,高层次的屏幕抓取和web抓取框架，用于抓取web站点并从页面中提取结构化的数据。Scrapy用途广泛，可以用于数据挖掘、监测和自动化测试。
Scrapy 1.2.1 发布了。
更新内容：
新功能
New 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 (#2034).
startproject command now supports an optional destination directory to override the default one based on the project name (#2005).
New SCHEDULER_DEBUG setting to log requests serialization failures (#1610).
JSON encoder now supports serialization of set instances (#2058).
Interpret application/json-amazonui-streaming as TextResponse (#1503).
scrapy is imported by default when using shell tools (shell, inspect_response) (#2248).
Bug 修复
DefaultRequestHeaders middleware now runs before UserAgent middleware (#2088). Warning: this is technically backwards incompatible, though we consider this a bug fix.
HTTP cache extension and plugins that use the .scrapy data directory now work outside projects (#1581). Warning: this is technically backwards incompatible, though we consider this a bug fix.
Selector does not allow passing both response and text anymore (#2153).
Fixed logging of wrong callback name with scrapy parse (#2169).
Fix for an odd gzip decompression bug (#1606).
Fix for selected callbacks when using CrawlSpider with scrapy parse (#2225).
Fix for invalid JSON and XML files when spider yields no items (#872).
Implement flush() for StreamLogger avoiding a warning in logs (#2125).
重构
下载地址：