Python parsing xml file operation instance

This article mainly introduces the python parsing xml file operation example, which is a common technique for operating XML files. if you need it, refer to the following example to describe how to implement python parsing xml files. Share it with you for your reference. The specific method is as follows:

The content of the xml file is as follows:

<?xml version="1.0" ?> 
  
    
       sample xml thing           
         
   
             ma       
          
   
             xiaoju       
        
              Springs Widgets, Inc.           
       
          First          
   
           I think widgets are greate.You should buy lots of them forom       
    
              Spirngy Widgts, Inc       
         
      
   
  

Python code:

from xml.dom import minidom, Node import re, textwrap  class SampleScanner:   """"""    def __init__(self, doc):     """Constructor"""     assert(isinstance(doc, minidom.Document))     for child in doc.childNodes:       if child.nodeType == Node.ELEMENT_NODE and \         child.tagName == "book":         self.handle_book(child)            def handle_book(self, node):          for child in node.childNodes:       if child.nodeType != Node.ELEMENT_NODE:         continue       if child.tagName == "title":         print "Book titile is:", self.gettext(child.childNodes)       if child.tagName == "author":         self.handle_author(child)       if child.tagName == "chapter":         self.handle_chapter(child)            def handle_chapter(self, node):     number = node.getAttribute("number")     print "number:", number     title_node = node.getElementsByTagName("title")     print "title:", self.gettext(title_node)          for child in node.childNodes:       if child.nodeType != Node.ELEMENT_NODE:         continue       if child.tagName == "para":         self.handle_chapter_para(child)            def handle_chapter_para(self, node):     company = ""     company = self.gettext(node.getElementsByTagName("company"))     print "chapter:para:company", company                 def handle_author(self, node):     for child in node.childNodes:       if child.nodeType != Node.ELEMENT_NODE:         continue       if child.tagName == "name":         self.handle_author_name(child)       if child.tagName == "affiliation":         print "affiliation:", self.gettext(child.childNodes)            def handle_author_name(self, node):     first = ""     last = ""     for child in node.childNodes:       if child.nodeType != Node.ELEMENT_NODE:         continue       if child.tagName == "first":         first = self.gettext(child.childNodes)       if child.tagName == 'last':         last = self.gettext(child.childNodes)              print "firstname:%s,lastname:%s" % (first, last)                 def gettext(self, nodelist):     retlist = []     for node in nodelist:       if node.nodeType == Node.TEXT_NODE:         retlist.append(node.wholeText)       elif node.hasChildNodes:         retlist.append(self.gettext(node.childNodes))              return re.sub('\s+', " ", ''.join(retlist))             if __name__=="__main__":   doc = minidom.parse("simple.xml")   sample = SampleScanner(doc) 

I hope this article will help you with Python programming.