[英]Python search and replace text (value of a tag) in a XML file without knowing the tag
我是Python的新手,正在尝试使用XML文件。 我知道如何解析和搜索了解结构的信息,但是我不知道如何在不知道该值附加到标签的情况下搜索值。
例如 :
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>TRUE</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>TRUE</year>
<price>39.95</price>
</book>
<adventure>
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>TRUE</year>
<price>TRUE</price>
</adventure>
</bookstore>
在此示例中,我想找到所有“ TRUE”值并将其替换为“ OK”。 你会怎么做?
谢谢
这是使用标准库中的xml.etree.ElementTree
的选项:
import xml.etree.ElementTree as ET
data = """xml here"""
tree = ET.fromstring(data)
for element in tree.getiterator():
if element.text == 'TRUE':
element.text = 'OK'
print ET.tostring(tree)
打印:
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>OK</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>OK</year>
<price>39.95</price>
</book>
<adventure>
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>OK</year>
<price>OK</price>
</adventure>
</bookstore>
如果单词TRUE
仅在标签之间存在,则应该可以使用简单的字符串替换
my_xml = """
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>TRUE</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>TRUE</year>
<price>39.95</price>
</book>
</bookstore>
"""
>>> my_xml.replace(">TRUE<",">OK<")
'\n<bookstore>\n <book category="COOKING">\n <title lang="en">Everyday Italian</title>\n <author>OK</author>\n <year>2005</year>\n <price>30.00</price>\n</book>\n <book category="CHILDREN">\n <title lang="en">Harry Potter</title>\n <author>J K. Rowling</author>\n <year>2005</year>\n <price>29.99</price>\n</book>\n<book category="WEB">\n <title lang="en">Learning XML</title>\n <author>Erik T. Ray</author>\n <year>OK</year>\n <price>39.95</price>\n </book>\n</bookstore>\n'
>>>
绝对不如使用xml lib健壮,但应该可以完成工作。
在这里,我做了什么,并允许我在xml文件中找到所有值。
for node in root.iter():
if (node.text != None):
node.text = search_in_dictonary_foot(">"+node.text+"<")
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.