使用xml.etree进行Python xml解析

Question

import os
from xml.etree import ElementTree
file_name = 'sex.xml'
full_file = os.path.abspath(os.path.join('data', file_name))

dom = ElementTree.parse(full_file)
pubmed = dom.findall('PubmedArticle')
name = dom.findall('PubmedArticle/AuthorList/Author')

for p in pubmed:
    pmid = p.find('PMID').text
    print('PMID: {}'.format(pmid))
    for n in name:
       LastName = n.find('LastName').text
       print('{}'.format(LastName))
    print('========\n')

我想要获取每个PubmedArticle的名称

但是这段代码可以一次获得完整的名称

<root>
  <PubmedArticle>
      <PMID>1</PMID>
      <AuthorList>
        <Author>
          <LastName>Makar</LastName>
        </Author>
        <Author>
          <LastName>McMartin</LastName>
        </Author>
       </AuthorList>
  </PubmedArticle>
  <PubmedArticle>
      <PMID>2</PMID>
      <AuthorList>
        <Author>
          <LastName>Palese</LastName>
        </Author>
        <Author>
          <LastName>Tephly</LastName>
        </Author>
       </AuthorList>
  </PubmedArticle>
</root>

如何将名称除以PMID，如下所示

结果

PMID1: Makar，McMartin

PMID 2: Palese，Tephly

Answer 1

pubmed和name是两个独立的列表。你必须分别查询每篇文章的作者：

articles = dom.findall('PubmedArticle')
for article in articles:
    pmid = article.findtext('PMID')
    print(f'PMID: {pmid}')
    authors = article.findall('AuthorList/Author')
    for author in authors:
        lastname = author.findtext('LastName')
        print(lastname)
    print('========\n')