XML 使用 elementTree 解析 python 问题

Question

我需要解析 soap 响应并转换为文本文件。 我正在尝试解析下面详述的值。 我在 python 中使用 ElementTree

我有以下需要解析的 xml 响应

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tmf854="tmf854.v1" xmlns:alu="alu.v1">
  <soapenv:Header>
    <tmf854:header>
      <tmf854:activityName>query</tmf854:activityName>
      <tmf854:msgName>queryResponse</tmf854:msgName>
      <tmf854:msgType>RESPONSE</tmf854:msgType>
      <tmf854:senderURI>https:/destinationhost:8443/tmf854/services</tmf854:senderURI>
      <tmf854:destinationURI>https://localhost:8443</tmf854:destinationURI>
      <tmf854:activityStatus>SUCCESS</tmf854:activityStatus>
      <tmf854:correlationId>1</tmf854:correlationId>
      <tmf854:communicationPattern>MultipleBatchResponse</tmf854:communicationPattern>
      <tmf854:communicationStyle>RPC</tmf854:communicationStyle>
      <tmf854:requestedBatchSize>1500</tmf854:requestedBatchSize>
      <tmf854:batchSequenceNumber>1</tmf854:batchSequenceNumber>
      <tmf854:batchSequenceEndOfReply>true</tmf854:batchSequenceEndOfReply>
      <tmf854:iteratorReferenceURI>http://9195985371165397084</tmf854:iteratorReferenceURI>
      <tmf854:timestamp>20220915222121.472+0530</tmf854:timestamp>
    </tmf854:header>
  </soapenv:Header>
  <soapenv:Body>
    <queryResponse xmlns="alu.v1">
      <queryObjectData>
        <queryObject>
          <name>
            <tmf854:mdNm>AMS</tmf854:mdNm>
            <tmf854:meNm>CHEERLAVANCHA_281743</tmf854:meNm>
            <tmf854:ptpNm>/type=NE/CHEERLAVANCHA_281743</tmf854:ptpNm>
          </name>
          <vendorExtensions>
            <package>
              <NameAndStringValue>
                <tmf854:name>hubSubtendedStatus</tmf854:name>
                <tmf854:value>NONE</tmf854:value>
              </NameAndStringValue>
              <NameAndStringValue>
                <tmf854:name>productAndRelease</tmf854:name>
                <tmf854:value>DF.6.1</tmf854:value>
              </NameAndStringValue>
              <NameAndStringValue>
                <tmf854:name>adminUserName</tmf854:name>
                <tmf854:value>isadmin</tmf854:value>
              </NameAndStringValue>
              <NameAndStringValue>
           </package>
          </vendorExtensions>
        </queryObject>
      </queryObjectData>
     </queryResponse>
 </soapenv:Body>
</soapenv:Envelope>

我需要使用下面的代码片段。

parser = ElementTree.parse("response.txt")
            root = parser.getroot()
            inventoryObjectData = root.find(".//{alu.v1}inventoryObjectData")
            for inventoryObject in inventoryObjectData:
                for device in inventoryObject:
                    if (device.tag.split("}")[1]) == "me":
                        vendorExtensionsNames = []
                        vendorExtensionsValues = []
                        if device.find(".//{tmf854.v1}mdNm") is not None:
                            mdnm = device.find(".//{tmf854.v1}mdNm").text
                        if device.find(".//{tmf854.v1}meNm") is not None:
                            menm = device.find(".//{tmf854.v1}meNm").text
                        if device.find(".//{tmf854.v1}userLabel") is not None:
                            userlabel = device.find(".//{tmf854.v1}userLabel").text
                        if device.find(".//{tmf854.v1}resourceState") is not None:
                            resourcestate = device.find(".//{tmf854.v1}resourceState").text
                        if device.find(".//{tmf854.v1}location") is not None:
                            location = device.find(".//{tmf854.v1}location").text
                        if device.find(".//{tmf854.v1}manufacturer") is not None:
                            manufacturer = device.find(".//{tmf854.v1}manufacturer").text
                        if device.find(".//{tmf854.v1}productName") is not None:
                            productname = device.find(".//{tmf854.v1}productName").text
                        if device.find(".//{tmf854.v1}version") is not None:
                            version = device.find(".//{tmf854.v1}version").text
                        vendorExtensions = device.find("vendorExtensions")
                        vendorExtensionsNamesElements = vendorExtensions.findall(".//{tmf854.v1}name")
                        for i in vendorExtensionsNamesElements:
                            vendorExtensionsNames.append(i.text.strip())
                         vendorExtensionsValuesElements = vendorExtensions.findall(".//{tmf854.v1}value")
                        for i in vendorExtensionsValuesElements:
                            vendorExtensionsValues.append(str(i.text or "").strip())

                        alu = ""
                        for i in vendorExtensions:
                            if i.attrib:
                                if alu == "":
                                    alu = i.attrib.get("{alu.v1}name")
                                else:
                                    alu = alu + "|" + i.attrib.get("{alu.v1}name")

问题是下面的代码无法找到“vendorExtensions”。请在此处提供帮助。

vendorExtensions = device.find("vendorExtensions")

也尝试过以下

vendorExtensions = device.find(".//queryObject/vendorExtensions")

Answer 1

您的文档声明了alu.v1的默认命名空间：

<queryResponse xmlns="alu.v1">
...
</queryResponse>

任何没有显式命名空间的属性都在alu.v1命名空间中。 您需要适当地限定您的属性名称：

vendorExtensions = device.find("{alu.v1}vendorExtensions")