Question

我将GPS数据存储为.tcx文件。这是一个xml文件（请求下面的文件）

<?xml version="1.0" encoding="utf-8"?>
<TrainingCenterDatabase xmlns="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tp1="http://www.garmin.com/xmlschemas/TrackPointExtension/v1" xmlns:gpx="http://www.topografix.com/GPX/1/1" xsi:schemaLocation="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2 http://www.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd">
    <Activities>
        <Activity Sport="Other">
            <Id>2012-01-17T11:44:35Z</Id>
            <Lap StartTime="2012-01-17T11:44:35Z">
                <TotalTimeSeconds>0</TotalTimeSeconds>
                <DistanceMeters>0</DistanceMeters>
                <Calories>0</Calories>
                <Intensity>Active</Intensity>
                <TriggerMethod>Manual</TriggerMethod>
                <Track>
                    <Trackpoint>
                        <Time>2012-01-17T11:44:35Z</Time>
                        <Position>
                            <LatitudeDegrees>59.720211518183351</LatitudeDegrees>

我使用的唯一类似的东西是使用类似格式的apple .plists，虽然信息嵌套在我认为的<dictionary>标签中。

以下内容会给我嵌套的词典......

import plistlib
pl = plistlib.readPlist('/Users/name/Documents/file.plist')

for sub_dict in pl:
    print(sub_dict['keyA'])
    print(sub_dict['keyD'])
    print(sub_dict['keyE'])
    print(sub_dict['keyG'])

我知道xml.dom.minidom，etree和lxml，但是我无法解决如何获得与上面的plistlib模块相同的输出。

我的最终目标是能够将两个数据集中的选定键合并在一起。一步一步......

编辑-----------------

我有一些工作：

from xml.dom.minidom import parse
doc = parse('/Users/name/Documents/GPS/gps.tcx')
lat = doc.getElementsByTagName("LatitudeDegrees")
time = doc.getElementsByTagName("Time")

for x in lat:
    print(x.firstChild.data)

Answer 1

我必须在发布的XML中添加结束标记，以便lxml解析器可以解析它。完成后，可以使用doc.xpath调用拉出Time和LatitudeDegrees数据。

import lxml.etree as ET
import io

content='''<?xml version="1.0" encoding="utf-8"?>
<TrainingCenterDatabase xmlns="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tp1="http://www.garmin.com/xmlschemas/TrackPointExtension/v1" xmlns:gpx="http://www.topografix.com/GPX/1/1" xsi:schemaLocation="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2 http://www.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd">
    <Activities>
        <Activity Sport="Other">
            <Id>2012-01-17T11:44:35Z</Id>
            <Lap StartTime="2012-01-17T11:44:35Z">
                <TotalTimeSeconds>0</TotalTimeSeconds>
                <DistanceMeters>0</DistanceMeters>
                <Calories>0</Calories>
                <Intensity>Active</Intensity>
                <TriggerMethod>Manual</TriggerMethod>
                <Track>
                    <Trackpoint>
                        <Time>2012-01-17T11:44:35Z</Time>
                        <Position>
                            <LatitudeDegrees>59.920211518183351</LatitudeDegrees>
</Position>
</Trackpoint>
</Track>
</Lap>
</Activity>
</Activities>
</TrainingCenterDatabase>
'''

doc = ET.fromstring(content)

ns = {'ns':'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2'}
for trackpoint in doc.xpath('//ns:Trackpoint', namespaces = ns):
    print(trackpoint.xpath('(ns:Time|ns:Position/ns:LatitudeDegrees)/text()', namespaces = ns))

产量

['2012-01-17T11:44:35Z', '59.920211518183351']

python 3.x xml解析类似于plistlib？

1 个答案: