代码可用的所有模块

• parsel.selector
• parsel.xpathfuncs
• scrapy.contracts
• scrapy.downloadermiddlewares.ajaxcrawl
• scrapy.downloadermiddlewares.cookies
• scrapy.downloadermiddlewares.defaultheaders
• scrapy.downloadermiddlewares.downloadtimeout
• scrapy.downloadermiddlewares.httpauth
• scrapy.downloadermiddlewares.httpcompression
• scrapy.downloadermiddlewares.httpproxy
• scrapy.downloadermiddlewares.redirect
• scrapy.downloadermiddlewares.stats
• scrapy.downloadermiddlewares.useragent
• scrapy.exceptions
• scrapy.extensions.closespider
• scrapy.extensions.corestats
• scrapy.extensions.debug
• scrapy.extensions.httpcache
• scrapy.extensions.logstats
• scrapy.extensions.memdebug
• scrapy.extensions.postprocessing
• scrapy.extensions.telnet
• scrapy.http.request
• scrapy.http.request.json_request
• scrapy.http.response
• scrapy.http.response.html
• scrapy.http.response.text
• scrapy.http.response.xml
• scrapy.item
• scrapy.link
• scrapy.linkextractors.lxmlhtml
• scrapy.logformatter
• scrapy.robotstxt
• scrapy.selector.unified
• scrapy.settings
• scrapy.spiderloader
• scrapy.spidermiddlewares.depth
• scrapy.spidermiddlewares.httperror
• scrapy.spidermiddlewares.offsite
• scrapy.spidermiddlewares.referer
• scrapy.spidermiddlewares.urllength
• scrapy.spiders.crawl
• scrapy.spiders.feed
• scrapy.spiders.sitemap
• scrapy.statscollectors
• scrapy.utils.curl
• scrapy.utils.defer
• scrapy.utils.reactor
• scrapy.utils.request
• scrapy.utils.trackref