解析python中有嵌套標簽的xml文件

Question

我只想解析一個xml文件，就像

 <?xml version="1.0" encoding="UTF-8"?><Significant Major="3" Minor="0" Revision="1" xmlns="urn:reuterscompanycontent:significantdevelopments03"><RepNo>0091N</RepNo><CompanyName Type="Primary">XYZ</CompanyName><Production Date="2017-02-23T18:10:39" /><Developments><Development ID="3534388"><Dates><Source>2017-02-23T18:18:32</Source><Initiation>2017-02-23T18:18:32</Initiation><LastUpdate>2017-02-23T18:23:26</LastUpdate></Dates><Flags><FrontPage>0</FrontPage><Significance>1</Significance></Flags><Topics><Topic1 Code="254">Regulatory / Company Investigation</Topic1></Topics><Headline>FTC approves final order settling charges for Abbott's deal with St. Jude Medical</Headline></Development></Developments></Significant>

我只想解析Development標記並解析其每個嵌套的標記，而我的代碼如下：

import xml.etree.cElementTree as ET
tree = ET.ElementTree(file='../rawdata/SigDev_0091N.xml')

#get the root element
root = tree.getroot()

#print root.tag, root.attrib

for child in root:
#print child.tag, child.attrib
    name = child.tag
    print name
    print 'at line 13'
    if name is 'Developments':
        print 'at line 15'
        for devChild in name['Developments']:
            print devChild.tag,devChild.attrib

它不在if塊內，我不知道為什么？

Answer 1

檢查name is 'Developments'總是返回false因為child.tag以{xmlns}tagname格式返回值。

對於您的情況：

名稱= {ur：reuterscompanycontent：significantdevelopments03}發展

您可以參考這個問題的答案。

簡單的字符串方法strip() ， find() ， split()或re可以幫助您跳過名稱空間進行比較。

與Python相關的文檔： https : //docs.python.org/2/library/xml.etree.elementtree.html#parsing-xml-with-namespaces