python 2.7 运行爬虫报错:scrapy ImportError: No module named _util 在爬虫工程下运行scrapy crawl报错: Traceback (most recent call last): File "/usr/bin/scrapy", line 11, in load_entry_point('Scrapy==1.6.0', 'console_scripts', 'scrapy')() File "/usr/lib/python2.7/site-packages/Scrapy-1.6.0-py2.7.egg/scrapy/cmdline.py", line 150, in execute _run_print_help(parser, _run_command, cmd, args, opts) File "/usr/lib/python2.7/site-packages/Scrapy-1.6.0-py2.7.egg/scrapscrapypython疑难杂症
Scrapy用Request多页爬取时callback不调用或请求未发出 利用如下代码从多页爬取,但似乎Request没有调用,或其回调函数没有调用? def parse(self, response): #水平爬取 next_selector = response.xpath('//*[contains(@class, "house-lst-page-box")]//a[last()]/@href') for url in next_selector.extract(): yield Request(urlparse.urljoin(response.url, url)) #垂直爬取scrapypython爬虫疑难杂症
Scrapy抓取UTF-8中文站出现乱码问题解决方案汇总 Scrapy抓取时,输出一般是unicode,这对于英文网站而言不成问题,但对于中文站,却会导致输出结果为乱码,ZZKOpythonscrapy爬虫