爬虫：保存linux网页教程为pdf格式

来源：互联网发布：百度春节大数据编辑：程序博客网时间：2024/06/03 19:38

安装wkhtmltopdf，在官网下载或在windows终端输入 pip install wkhtmltopdf

添加到系统变量Path后重启电脑

使用 pip install pdfkit 安装pdfkit

使用wkhtmltopdf将http://www.linuxprobe.com/ 中的linux网页教程为pdf格式存在问题：

编码问题：如果将保存的pdf文件命名为中文则出现 names = unicode(name, encoding=’utf-8’) TypeError: decoding Unicode is not supported 错误

#-*-coding:utf-8-*-import pdfkitimport requestsimport sysimport osimport urllib2import rereload(sys)sys.setdefaultencoding('utf-8')class Spider:    def get_pdf(self, urls, name):        if os.path.exists('E:/linux_pdf'):            print 'already exists!!!'        else:            os.mkdir('E:/linux_pdf')        os.chdir('E:/linux_pdf/')        print 'url = ' + urls        # names = unicode(name, encoding='utf-8')        # print names        pdfkit.from_url(urls, name + '.pdf')        print 'hahhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'    def get_main_page(self,url):        header = {'User-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'}        html = requests.get(url)        url_field = re.findall('<ul class="dropdown-menu">(.*?)</ul>', html.text, re.S)[0]        url_lists = re.findall('class="menu-item.*?<a href="(.*?)">', url_field, re.S)        print url_lists        print '-'*100        name_lists = re.findall('<a href=".*?">(.*?)</a></li>',url_field, re.S)        if len(url_lists) == len(name_lists):            for i in range(1, len(url_lists)+1):                self.get_pdf(url_lists[i-1], str(i))        else:            print "crawl lists is wrong!!!"if __name__ == '__main__':    url = 'http://www.linuxprobe.com/'    spider = Spider()    spider.get_main_page(url)

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