我迷路了我想从python的url xml文件中提取一个值,我看到了那里有很多库,但无法取得一些成功。另一个xml python提取
<?xml version="1.0"?>
<root LoadTime="1360991134" DataVersion="991138826" UserData_DataVersion="991134040"
TimeStamp="1361131034" ZWaveStatus="1" LocalTime="2013-02-17 14:57:14 D">
<Device_Num_82 status="-1">
<states>
<state id="72" service="urn:upnp-org:serviceId:XBMCState1" variable="Port" value="80">
</state>
<state id="73" service="urn:upnp-org:serviceId:XBMCState1" variable="PingInterval"
value="180"></state>
<state id="74" service="urn:upnp-org:serviceId:XBMCState1" variable="PingStatus"
value="up"></state>
<state id="75" service="urn:upnp-org:serviceId:XBMCState1" variable="IdleTime"
value="program"></state>
<state id="76" service="urn:upnp-org:serviceId:XBMCState1" variable="PlayerStatus"
value="Video_end"></state>
<state id="77" service="urn:micasaverde-com:serviceId:HaDevice1" variable="CommFailure"
value="1"></state>
<state id="78" service="urn:micasaverde-com:serviceId:HaDevice1" variable="LastUpdate"
value="0"></state>
<state id="79" service="urn:micasaverde-com:serviceId:HaDevice1" variable="Configured"
value="0"></state>
</states>
<Jobs></Jobs>
<tooltip display="0"></tooltip>
</Device_Num_82>
</root>
我想ID = 75(节目)的
由于
在这里,代码
import xml.etree.ElementTree as ET
import urllib.request
VERA = 'http://192.168.2.19:3480/data_request?id=status&output_format=xml&DeviceNum=82'
xml = urllib.request.urlopen(VERA).read()
tree = ET.fromstring(xml)
print (tree.find('.//state[@id="75"]').attrib['service'])
# urn:upnp-org:serviceId:XBMCState1
这里错误
Traceback (most recent call last):
File "/Users/Michael/Desktop/test.py", line 8, in <module>
print (tree.find('.//state[@id="75"]').attrib['service'])
AttributeError: 'NoneType' object has no attribute 'attrib'
那你试试这么远吗? – oefe 2013-02-17 20:49:17
然后,不存在ID为“75”的“状态”节点... – 2013-02-17 21:22:34
我知道为什么现在,我使用浏览器进行检查,并且每次我重新编写id更改。有没有一种方法来检查变量IdleTime而不是 – user2052746 2013-02-17 21:40:31