python - 遍历 xml 在 python 中不起作用

Question

我的 XML:

<animals>
  <animal name="fox" fullname="fullfox"></animal>
  <animal name="dog" fullname="halfdog"><food>milk</food><food>rice</food><food>meat</food>   </animal>
  <animal name="cow" fullname="doublecow"><food>grass</food></animal>
  <animal name="blabla" fullname="fullbla"></animal>
</animals>

我正在尝试解析此 XML 以获得与输出相同的 XML。

doc    = ET.parse("an.xml")
root = doc.getroot() #Returns the root element for this tree.
root_new  = ET.Element("animals") 
for child in root:
    name = child.attrib['name']
    fullname = child.attrib['fullname']

for g in root.findall("*/food"):
    animal    = ET.SubElement(root_new, "animal") 
    food     = ET.SubElement(animal, "food")   
    food.text = g.text
    animal.set("name",name)               
    animal.set("fullname",fullname) 

tree = ET.ElementTree(root_new)
tree.write(sys.stdout)

但我只得到最后一个值

<animals>
  <animal fullname="fullbla" name="blabla"><food>milk</food></animal>
  <animal fullname="fullbla" name="blabla"><food>rice</food></animal>
  <animal fullname="fullbla" name="blabla"><food>meat</food></animal>
  <animal fullname="fullbla" name="blabla"><food>grass</food></animal>
</animals>

食物节点也错了，如何像我输入的 XML 一样迭代？

Answer 1

你的代码应该是这样的

doc    = ET.parse("test.xml")
root = doc.getroot() #Returns the root element for this tree.
root_new  = ET.Element("animals") 
for child in root:
    name             = child.attrib['name']
    fullname         = child.attrib['fullname']
    animal    = ET.SubElement(root_new, "animal") 
    animal.set("name",name)               
    animal.set("fullname",fullname) 

    for g in child.findall("food"):
        food = ET.SubElement(animal, "food")   
        food.text = g.text

tree = ET.ElementTree(root_new)
tree.write(sys.stdout)