我正在嘗試使用 Python minidom 庫解析 .xml 文件中的元素，但它似乎不起作用。它返回“IndexError 列表超出范圍”。也許我在工作中使用了不正確的方法/庫。請建議如何做到這一點(diǎn)。謝謝from xml.dom import minidomdoc = minidom.parse('/path/to/file/runParameters.xml')docs = doc.getElementsByTagName('RunParameters')for el in docs: cloud = el.getElementsByTagName("EnableCloud") print(cloud[0].firstChild.nodeValue)這是文件的結(jié)構(gòu)<?xml version="1.0"?><RunParameters xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <EnableCloud>false</EnableCloud> <RunParametersVersion>MiSeq</RunParametersVersion> <CopyManifests>true</CopyManifests> <FlowcellRFIDTag> <SerialNumber>000000000-AG01C</SerialNumber> <PartNumber>17772</PartNumber> <ExpirationDate>2016-04-10T00:00:00</ExpirationDate> </FlowcellRFIDTag></RunParameters>
2 回答
心有法竹
TA貢獻(xiàn)1866條經(jīng)驗(yàn) 獲得超5個(gè)贊
使用元素樹
import xml.etree.ElementTree as ET
xml = '''<?xml version="1.0"?>
<RunParameters xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
? <EnableCloud>false</EnableCloud>
? <RunParametersVersion>MiSeq</RunParametersVersion>
? <CopyManifests>true</CopyManifests>
? <FlowcellRFIDTag>
? ? <SerialNumber>000000000-AG01C</SerialNumber>
? ? <PartNumber>17772</PartNumber>
? ? <ExpirationDate>2016-04-10T00:00:00</ExpirationDate>
? </FlowcellRFIDTag>
</RunParameters>'''
root = ET.fromstring(xml)
print(root.find('.//EnableCloud').text)
輸出
false
侃侃爾雅
TA貢獻(xiàn)1801條經(jīng)驗(yàn) 獲得超16個(gè)贊
這段代碼對我有用。請?jiān)谀南到y(tǒng)上嘗試：
xx = '''
<?xml version="1.0"?>
<RunParameters xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<EnableCloud>false</EnableCloud>
<RunParametersVersion>MiSeq</RunParametersVersion>
<CopyManifests>true</CopyManifests>
<FlowcellRFIDTag>
<SerialNumber>000000000-AG01C</SerialNumber>
<PartNumber>17772</PartNumber>
<ExpirationDate>2016-04-10T00:00:00</ExpirationDate>
</FlowcellRFIDTag>
</RunParameters>
'''.strip()
with open('test2.xml','w') as f:
f.write(xx)
from xml.dom import minidom
doc = minidom.parse('test2.xml')
docs = doc.getElementsByTagName('RunParameters')
for el in docs:
cloud = el.getElementsByTagName("EnableCloud")
print(cloud[0].firstChild.nodeValue)
輸出
false
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