应该是一个简单的问题来回答你的Python大师!你知道吗
我有这个我正试图解析的XML信息(它来自一个URL)
<calculateRouteResponse xmlns="http://api.tomtom.com/routing" formatVersion="0.0.12">
<copyright>...</copyright>
<privacy>...</privacy>
<route>
<summary>
<lengthInMeters>5144</lengthInMeters>
<travelTimeInSeconds>687</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:16:06+11:00</departureTime>
<arrivalTime>2018-01-16T11:27:33+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>478</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>687</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>687</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
<leg>
<summary>
<lengthInMeters>806</lengthInMeters>
<travelTimeInSeconds>68</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:16:06+11:00</departureTime>
<arrivalTime>2018-01-16T11:17:14+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>59</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>68</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>68</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
<points>...</points>
</leg>
<leg>
<summary>
<lengthInMeters>958</lengthInMeters>
<travelTimeInSeconds>114</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:17:14+11:00</departureTime>
<arrivalTime>2018-01-16T11:19:08+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>77</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>114</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>114</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
<points>...</points>
</leg>
<leg>
<summary>
<lengthInMeters>1798</lengthInMeters>
<travelTimeInSeconds>224</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:19:08+11:00</departureTime>
<arrivalTime>2018-01-16T11:22:53+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>181</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>224</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>224</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
<points>...</points>
</leg>
<leg>
<summary>
<lengthInMeters>1582</lengthInMeters>
<travelTimeInSeconds>280</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:22:53+11:00</departureTime>
<arrivalTime>2018-01-16T11:27:33+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>160</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>280</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>280</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
<points>...</points>
</leg>
<sections>
<section>
<startPointIndex>0</startPointIndex>
<endPointIndex>139</endPointIndex>
<sectionType>TRAVEL_MODE</sectionType>
<travelMode>car</travelMode>
</section>
</sections>
</route>
</calculateRouteResponse>
我有一个脚本,我正试图用它来获取特定的信息。你知道吗
from lxml import etree
import urllib.request
def parseXML(xmlFile):
"""
Parse the xml
"""
with urllib.request.urlopen("https://api.tomtom.com/routing/1/calculateRoute/-37.79205923474775,145.03010268799338:-37.798883995180496,145.03040309540322:-37.807106781970354,145.02895470253526:-37.80320743019992,145.01021142594075:-37.79990,144.99318476311566:?routeType=shortest&key=xxxx&computeTravelTimeFor=all") as fobj:
xml = fobj.read()
#Look at Parent and Child XML organisation as this is where the data is going wrong at the moment
root = etree.fromstring(xml)
for appt in root.getchildren():
for elem in appt.getchildren():
if not elem.text:
text = "None"
else:
text = elem[0][0].text
##This is doing something with the xml based on it's tag and value.
if elem.tag == 'travelTimeInSeconds' and int(text) > 700:
print('******** Do something with ', elem.tag, ' : ', text)
print(elem.tag + " => " + text)
if __name__ == "__main__":
parseXML("example.xml")
我得到的输出仅仅来自summary和leg选项卡。你知道吗
例如
期望的输出是这样的
<summary>
<lengthInMeters>5144</lengthInMeters>
<travelTimeInSeconds>687</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:16:06+11:00</departureTime>
<arrivalTime>2018-01-16T11:27:33+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>478</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>687</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>687</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
如果可能的话,每一条腿(so->
<leg>
<summary>
<lengthInMeters>958</lengthInMeters>
<travelTimeInSeconds>114</travelTimeInSeconds>
<trafficDelayInSeconds>0</trafficDelayInSeconds>
<departureTime>2018-01-16T11:17:14+11:00</departureTime>
<arrivalTime>2018-01-16T11:19:08+11:00</arrivalTime>
<noTrafficTravelTimeInSeconds>77</noTrafficTravelTimeInSeconds>
<historicTrafficTravelTimeInSeconds>114</historicTrafficTravelTimeInSeconds>
<liveTrafficIncidentsTravelTimeInSeconds>114</liveTrafficIncidentsTravelTimeInSeconds>
</summary>
</leg>
XML标记之间的数据,例如1582表示长度(以米为单位)
如何更改此脚本以获取长度表、traveltimeinseconds和那些特定子级的信息?特别想要什么是摘要页签里面,最有价值的信息,谢谢!你知道吗
谢谢你的时间!你知道吗
这是基于我得到的答案和我自己的解释的解决方案。你知道吗
现在开始格式化数据,然后学习如何对其进行pickle!你知道吗
from lxml import etree
import urllib.request
def handleLeg(leg):
# print this leg as text, or save it to file maybe...
text = etree.tostring(leg, pretty_print=True)
print (text)
# also process individual elements of interest here if we want
tagsOfInterest=["noTrafficTravelTimeInSeconds", "lengthInMeters", "departureTime", "trafficDelayInSeconds"] # whatever
for child in leg:
if 'summary' in child.tag:
for elem in child:
for item in tagsOfInterest:
if item in elem.tag:
print (item + " : " + elem.text)
def parseXML(xmlFile):
"""
Parse the xml
"""
with urllib.request.urlopen("https://api.tomtom.com/routing/1/calculateRoute/-37.79205923474775,145.03010268799338:-37.798883995180496,145.03040309540322:-37.807106781970354,145.02895470253526:-37.80320743019992,145.01021142594075:-37.79990,144.99318476311566:?routeType=shortest&key=xxxxx&computeTravelTimeFor=all") as fobj:
xml = fobj.read()
#Look at Parent and Child XML organisation as this is where the data is going wrong at the moment
root = etree.fromstring(xml)
for child in root:
if 'route' in child.tag:
for elem in child:
if 'leg' in elem.tag:
handleLeg(elem)
if __name__ == "__main__":
parseXML("example.xml")
'''
import pickle
favorite_color = { "lion": "yellow", "kitty": "red" }
pickle.dump( favorite_color, open( "save.p", "wb" ) )
'''
我的理解是,parseXML从网站获取数据,然后转换成etree,然后在其中搜索“route”,然后在解析之前搜索“leg”。感兴趣的标签用于找到正确的文本,以便在解释器中显示。你知道吗
确保我也有摘要标签。你知道吗
下一步是将这些信息放入类/对象/字典中,并对其进行整理以备将来使用。你知道吗
我没有访问tomtomapi的权限,所以我无法运行您发布的所有代码,但我确实查看了您发布的XML字符串。你知道吗
下面是我用来提取单个“leg”元素并处理它们的一些代码。我只是将它们打印为文本(可以将它们保存到文件中),还提取了特定的子对象并将它们打印出来。你知道吗
你的问题并不清楚你想用这些数据做什么,但也许这给了你一个工作的起点。你知道吗
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