使用这个mapi变量,我们可以使用OpenSharedItem()方法打开一个MSG文件,并创建一个我们将在本示例中使用的对象。这些函数包括:display_msg_attribs()、display_msg_recipients()、extract_msg_body()和extract_attachments()。现在让我们依次关注这些函数,看看它们是如何工作的: defmain(msg_file, output_dir): mapi =...
importsocket#Imported sockets moduleTCP_IP ='127.0.0.1'TCP_PORT =8090BUFFER_SIZE =1024#Normally use 1024, to get fast response from the server use small sizetry:#Create an AF_INET (IPv4), STREAM socket (TCP)tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)exceptsocket.error,...
AI代码解释 importcsvclassTicketspiderPipeline(object):def__init__(self):self.f=open('ticker.csv','w',encoding='utf-8',newline='')self.fieldnames=['area','sight','level','price']self.writer=csv.DictWriter(self.f,fieldnames=self.fieldnames)self.writer.writeheader()defprocess_item(self,item...
然后通过scrapy提供的spider完成所有文章的爬取。然后详细讲解item以及item loader方式完成具体字段的提取后使用scrapy提供的pipeline分别将数据保存到json文件以及mysql数据库中. 首先爬取一个网站前,我们需要分析网络的url结构,伯乐在线的网站结构是采用顶级域名下有二级域名,来区分每种类别的信息,并且在文章专栏里面 有一...
31 url = self.dom + type.xpath('@href').extract_first() # 每一个书籍分类下面的url 32 typestr_new = typestr + "{0}>>".format(type.xpath('text()').extract_first()) # 多级分类 33 34 scrapy.Spider.log(self, "Find url:{0},type{1}".format(url, typestr_new), logging.INFO)...
return self._extract_from_pdf(file_path) # 需要pdfplumber库 return "" # 其他类型暂不处理 def predict_category(self, text): """使用NLP模型分析文本主题""" if not text.strip(): return "其他" results = self.classifier(text[:512]) # 只分析前512字符 ...
This way we can use thepop()method to remove the first element from a Python list. Method-3: Remove the first element from a Python list using List slicing List slicingis a method in Python list to extract a part of a list. This technique can also be used to remove the first element...
busdaycalendar``,only used when custom frequency strings are passed. The defaultvalue None is equivalent to 'Mon Tue Wed Thu Fri'.holidays : list-like or None, default NoneDates to exclude from the set of valid business days, passed to``numpy.busdaycalendar``, only used when custom ...
The same regular expression can be used to extract a number from a string. Since the input string can contain more than one number matching the regular expression, only the first occurrence will be returned by the routine. If the string does not hold any number, it is convenient to set th...
You then extract the capability for each browser method (Chrome and Edge) using its index position. Then concatenate each with the grid URL inherited from the __init__ function. The Chrome method capability dictionary is at index zero (first item in the array): self.stringifiedCaps = urllib...