python解析xml文件操作实例

　　本文实例讲述了python解析xml文件操作的实现方法。分享给大家供大家参考。具体方法如下：

　　xml文件内容如下：

　　 <?xml version=1.0 ?> <!--Simple xml document__chapter 8--> <book> <title> sample xml thing </title> <author> <name> <first> ma </first> <last> xiaoju </last> </name> <affiliation> Springs Widgets, Inc. </affiliation> </author> <chapter number=1> <title> First </title> <para> I think widgets are greate.You should buy lots of them forom <company> Spirngy Widgts, Inc </company> </para> </chapter> </book>

　　python代码：

　　 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)

　　希望本文所述对大家的Python程序设计有所帮助。