我正在尝试使用以下代码合并python中的两个xml文件。我在另一个帖子中找到了:Merge xml files with nested elements without external libraries
import sys
from xml.etree import ElementTree as et
class hashabledict(dict):
def __hash__(self):
return hash(tuple(sorted(self.items())))
class XMLCombiner(object):
def __init__(self, filenames):
assert len(filenames) > 0, 'No filenames!'
# save all the roots, in order, to be processed later
self.roots = [et.parse(f).getroot() for f in filenames]
def combine(self):
for r in self.roots[1:]:
# combine each element with the first one, and update that
self.combine_element(self.roots[0], r)
# return the string representation
return et.ElementTree(self.roots[0])
def combine_element(self, one, other):
"""
This function recursively updates either the text or the children
of an element if another element is found in `one`, or adds it
from `other` if not found.
"""
# Create a mapping from tag name to element, as that's what we are fltering with
mapping = {(el.tag, hashabledict(el.attrib)): el for el in one}
for el in other:
if len(el) == 0:
# Not nested
try:
# Update the text
mapping[(el.tag, hashabledict(el.attrib))].text = el.text
except KeyError:
# An element with this name is not in the mapping
mapping[(el.tag, hashabledict(el.attrib))] = el
# Add it
one.append(el)
else:
try:
# Recursively process the element, and update it in the same way
self.combine_element(mapping[(el.tag, hashabledict(el.attrib))], el)
except KeyError:
# Not in the mapping
mapping[(el.tag, hashabledict(el.attrib))] = el
# Just add it
one.append(el)
if __name__ == '__main__':
r = XMLCombiner(sys.argv[1:-1]).combine()
print '-'*20
print et.tostring(r.getroot())
r.write(sys.argv[-1], encoding="iso-8859-1", xml_declaration=True)
该代码适用于合并两个xml文件,但我还想合并我在文件中的注释。我是新手,不知道如何不仅合并xml而且还知道我在文件中的注释。