Question

第一：我是新求职者。使用python..so请帮帮我。我正在尝试使用Python读取XML文件。我的xml文件名是rgpost.xml

<volume name="sp" type="span" operation="create">
    <driver>HDD1</driver>
</volume>

我的代码：

import xml.etree.ElementTree as ET
doc = ET.parse("rgpost.xml")
s = doc.find("volume")
print s.attrib["name"]

在运行时遇到错误：

sp:~# python volume_check.py volume  
Traceback (most recent call last):  
  File "volume_check.py", line 13, in <module>  
    print s.attrib["name"]  
AttributeError: 'NoneType' object has no attribute 'attrib'

提前致谢

Answer 1

如果你得到根，生活就会容易得多：

>>> import xml.etree.ElementTree as ET
>>> doc = ET.parse("rgpost.xml")
>>> root = doc.getroot() # <--- this is the new line
>>> root
<Element 'volume' at 0x1004d8f10>
>>> root.keys()
['operation', 'type', 'name']
>>> root.attrib["name"]
'sp'
>>> root.get("name")
'sp'

Answer 2

volume被视为XML树的根，因此您想要的是doc.attrib['name']。

xml="""<volume name="sp" type="span" operation="create">
    <driver>HDD1</driver>
</volume>"""

import xml.etree.ElementTree as ET
doc = ET.fromstring(xml)
print doc
# <Element 'volume' at 0x26f1d50>
print doc.attrib['name']

读取xml文件并使用python进行打印

2 个答案: