删除文件python的特定部分

Question

I work under python 3.2 on Windows (8.1), and I have an XML file in which I would like to delete a specific part if this one exists. Here is the visual example of what I need to do:

I would like to know how we could delete the selected part in the picture, knowing that there can be or not several occurences of .

Answer 1

You can use xml.etree.ElementTree: https://docs.python.org/2/library/xml.etree.elementtree.html#modifying-an-xml-file

from xml.etree import ElementTree

with open('file.xml', 'rt') as f:
    tree = ElementTree.parse(f)

root = tree.getroot()
for node in root.iter():
    if node.tag == 'object2':
        root.remove(node)

tree.write(out.xml)

Answer 2

import re
f=open("some.xml",'r')
f.close()
x=f.read()
y=re.sub(r"<object2>(?:(?!<\/object2>)[\s\S])*<\/object2>","",x)
f=open("some.xml",'w')
f.write(y)
f.close()

You can try this using re .

Answer 3

f = open('xmlfile.xml','r')
flag = False
tempData = ''
for line in f:
  if '<object2>' in line:
    flag = True
  elif flag == True and '</object2>' in line:
    flag = False
  elif flag == False:
    tempData += line
f.close()
f = open('xmlfile.xml','w')
f.write(tempData)
f.close()

A little longer than vks' answer, but it does not require an import.