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brucebot
V2EX  ›  Python

如何用scrapy抓取数据时使用Xpath获得全部文本

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  •   brucebot · 2013-08-30 22:37:30 +08:00 · 6955 次点击
    这是一个创建于 4104 天前的主题,其中的信息可能已经有所发展或是发生改变。
    使用的是
    item['description'] = app.select('./li//text()').extract_unquoted()
    得到
    {"description": ["\n I visited the local ", "robotic", " club and recorded the preparation for the up-coming competition. I was invited to make a speech there\u00a0", "...", "\n "]

    请教应该怎么写,才能得到
    {"description": ["I visited the local robotic club and recorded the preparation for the up-coming competition. I was invited to make a speech there...“]
    这样的形式,就是只需要保留文本的部分?
    4 条回复    1970-01-01 08:00:00 +08:00
    beordle
        1
    beordle  
       2013-08-30 22:38:48 +08:00   ❤️ 1
    "".join(app.select('./li//text()').extract_unquoted())
    brucebot
        2
    brucebot  
    OP
       2013-08-30 22:45:24 +08:00
    @beordle 这样出来的结果是
    {"description": "\n I visited the local robotic club and recorded the preparation for the up-coming competition. I was invited to make a speech there...\n“
    []不见了?
    beordle
        3
    beordle  
       2013-08-30 22:56:25 +08:00   ❤️ 1
    加上就好了嘛~
    item['description'] = ["".join(app.select('./li//text()').extract_unquoted())]
    如果需要/n换行的话
    item['description'] = "".join(app.select('./li//text()').extract_unquoted()).split('\n')
    可能还有一些细节问题。hack下即可
    brucebot
        4
    brucebot  
    OP
       2013-08-30 23:06:38 +08:00
    @beordle 非常感谢
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