.extract() - list of items
.extract_first() - the string converted from unicode ('u')
response.urljoin(relative url) - make absolute url
scrapy.htttp.request or selector.follow - simulate clicking onto next page, follow allows relative path
xpath
containsxpath('//*[contains(@class, "star-rating")]/@class')
following-sibling::xpath(''//*[@id="product_description"]/following-sibling::p/text()'')
.extract() - list of items.extract_first() - the string c...
COMMANDS_MODULE 示例： COMMANDS_MODULE = "dabo.commands" 可配置...
1、Multiple commands produce error: Multiple commands prod...
Debugger commands: apropos-- List debugger commands relat...
AWK 工作原理 命令结构:awk 'BEGIN{ commands } pattern{ commands } ...
Commands reference from commands in Python. Do some comma...
参考网址： https://redis.io/commands[https://redis.io/commands...
前言 在Redis Commands[https://redis.io/commands/]页面中，Redis还提...
3 commands
start mysqld.exemysqld.exe --console shutdownmysqladmin -...
本文标题：Scrapy commands
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