Posted in Python onMay 02, 2017
本文实例讲述了python处理xml文件的方法。分享给大家供大家参考,具体如下:
前一段时间因为工作的需要,学习了一点用Python处理xml文件的方法,现在贴出来,供大家参考。
xml文件是按节点一层一层来叠加的,最顶层的是根节点。比如说:
<sys:String x:Key="STR_License_WithoutLicense">Sorry, you are not authorized.</sys:String>
其中sys:String为节点名字,x:Key的内容为Attribute,xml节点值为sys:String的子节点,它是文本节点类型。<节点名称 x:Key="Attribute">子节点。。。
RPD的xml格式:
<ResourceDictionary> <sys:String x:Key="STR_Startup_LaunchRPD">Launching Polycom RealPresence Desktop</sys:String> <sys:String x:Key="STR_Startup_CheckFolder">Checking folder</sys:String>
CMAD的xml格式:
<language-strings> <ABK_CALL comment="verb (command, button on screen to press to place a call);" controls="Button" products="HDX,VSX,CMAD,Venus Main"> <ARABIC notes="" last-change-date="" status="">打电话</ARABIC> <CHINESE_S notes="" last-change-date="" status="">呼叫</CHINESE_S>
该代码的功能是:
从RPD的String中取出节点值,在CMAD的String中查找是否已经存在,如果存在,则返回CMAD中对应String的NodeName(节点名),并把两个节点名一个做节点名,一个做节点值写到xml文件中;如果不存在,则把RPD中的该节点写到另外一个xml文件中。代码如下:
import xml.dom.minidom from xml.dom.minidom import Document RPD_Str_path = "E:/PythonCode/StringResource.en-US.xaml" RPD_dom = xml.dom.minidom.parse(RPD_Str_path) CMAD_Str_path = "E:/PythonCode/M500_RPM13_0522.xml" CMAD_dom = xml.dom.minidom.parse(CMAD_Str_path) #得到根节点 RPD_root = RPD_dom.documentElement CMAD_root = CMAD_dom.documentElement def IsStr_already_Translated(RPD_Str): for firstLevel in CMAD_root.childNodes: for SecondLevel in firstLevel.childNodes: if SecondLevel.nodeType == SecondLevel.ELEMENT_NODE: if SecondLevel.nodeName == "ENGLISH_US": if RPD_Str == SecondLevel.childNodes[0].data.strip(): return firstLevel.nodeName else: continue else: continue else: continue else: continue else: return "Null" #用Document来写xml文件 Mapping_doc = Document() Mapping_root = Mapping_doc.createElement("Common_String") Mapping_doc.appendChild(Mapping_root) Translation_doc = Document() Translation_root = Translation_doc.createElement("Need_Translation_String") Translation_doc.appendChild(Translation_root) for node in RPD_root.childNodes: if node.nodeType == node.ELEMENT_NODE: # print node.getAttribute("x:Key") +" + "+ node.childNodes[0].data CMAD_Key = IsStr_already_Translated(node.childNodes[0].data.strip()) if(CMAD_Key != "Null"): mKey = Mapping_doc.createElement(node.getAttribute("x:Key")) Mapping_root.appendChild(mKey) mValue = Mapping_doc.createTextNode(CMAD_Key) mKey.appendChild(mValue) elif(CMAD_Key == "Null"): Key = Translation_doc.createElement('sys:String') Translation_root.appendChild(Key) Key.setAttribute('x:Key', node.getAttribute("x:Key")) Value = Translation_doc.createTextNode(node.childNodes[0].nodeValue) Key.appendChild(Value) continue else: path1 = "E:/PythonCode/ID_Mapping.xml" try: import codecs f1 = codecs.open(path1, "wb", "utf-8") f1.write(Mapping_doc.toprettyxml(indent=" ")) except: print('Write xml file failed.... file:{0}'.format(path1)) path2 = "E:/PythonCode/Need_Translate_String.xml" try: f2 = codecs.open(path2, "wb", "utf-8") f2.write(Translation_doc.toprettyxml(indent=" ")) except: print('Write xml file failed.... file:{0}'.format(path2))
python处理xml文件的方法小结
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