Question

XML响应不容易解析为元素树对象。

我尝试将其解析为字符串并查找并替换值，这变得非常混乱，解析XML一定比这更容易吗？

    import requests
    from lxml import etree

    response = requests.get(url="http://www.yournavigation.org/api/1.0/gosmore.php?format=kml&flat=52.215676&flon=5.963946&tlat=52.2573&tlon=6.1799&v=motorcar&fast=1&layer=mapnik")

    root = etree.fromstring(response.content)

    for child in root:
        print (child.tag, child.attrib)

    print(etree.tostring(root, pretty_print=True))

我希望Element Tree对象以美化的格式打印，而我的Root会有很多孩子。 Tree对象不会以这种方式打印，并且Root看起来没有子代。

我可以在这里整理有关使用这种方法解析XML的最佳实践信息，谢谢。

Answer 1

尝试以下代码：

import xml.etree.ElementTree as ET
import requests
import re

r = requests.get(
    'http://www.yournavigation.org/api/1.0/gosmore.php?forat=kml&flat=52.215676&flon=5.963946&tlat=52.2573&tlon=6.1799&v=motorcar&fast=1&layer=mapnik')
if r.status_code == 200:
    # remove namespace
    xmlstring = re.sub(' xmlns="[^"]+"', '', r.content, count=1)
    root = ET.fromstring(xmlstring)
    ET.dump(root)

输出

<kml>
  <Document>
    <name>KML Samples</name>
    <open>1</open>
    <distance>21.452372</distance>
    <traveltime>1228</traveltime>
    <description>To enable simple instructions add: 'instructions=1' as parameter to the URL</description>
    <Folder>
      <name>Paths</name>
      <visibility>0</visibility>
      <description>Examples of paths.</description>
      <Placemark>
        <name>Tessellated</name>
        <visibility>0</visibility>
        <description>If the &lt;tessellate&gt; tag has a value of 1, the line will contour to the underlying terrain</description>
        <LineString>
          <tessellate>1</tessellate>
          <coordinates> 5.963585,52.215950
5.963585,52.215950
5.963563,52.215986
5.963552,52.216012
5.964570,52.216254
5.964680,52.216333
5.964812,52.216371
5.966120,52.216622
5.967970,52.217000
5.968272,52.217056
5.969040,52.216970
5.969243,52.216943
5.969853,52.216862
5.969980,52.216840
5.970410,52.216760
5.970430,52.216757
5.970608,52.216718
5.970875,52.216652
5.971517,52.216534
5.972517,52.216352
5.972689,52.216347
5.972828,52.216322
5.973490,52.216180
5.974320,52.216020
5.974858,52.215917
5.975508,52.215795
5.975618,52.215774
5.975806,52.215736
5.975964,52.215707
5.976454,52.215615
5.976790,52.215550
5.977030,52.215500
5.978012,52.215322
5.978128,52.215301
5.978297,52.215269
5.978550,52.215223
5.979900,52.214980
5.979972,52.214967
5.980610,52.214850
5.981604,52.214682
5.982088,52.214593
5.982319,52.214555
5.983603,52.214328
5.983800,52.214290
5.984046,52.214244
5.984611,52.214147
5.984766,52.214123
5.984979,52.214089
5.985825,52.213893
5.985988,52.213862
5.986167,52.213827
5.986373,52.213785
5.987057,52.213667
5.987258,52.213647
5.988991,52.213331
5.991815,52.212817
5.993959,52.212422
5.996034,52.212043
5.996967,52.211876
5.997648,52.211743
5.998927,52.211492
5.999520,52.211376
5.999731,52.211334
5.999916,52.211301
6.000084,52.211273
6.000583,52.211188
6.003432,52.210674
6.004653,52.210453
6.004780,52.210428
6.004768,52.210359
6.004796,52.210315
6.004844,52.210283
6.004888,52.210267
6.004979,52.210256
6.005070,52.210271
6.005135,52.210305
6.005173,52.210356
6.005279,52.210337
6.008708,52.209720
6.011155,52.209269
6.012734,52.208984
6.012875,52.208959
6.012863,52.208920
6.012867,52.208894
6.012891,52.208857
6.012923,52.208833
6.012978,52.208812
6.013050,52.208803
6.013133,52.208814
6.013185,52.208838
6.013344,52.208817
6.013912,52.208709
6.014164,52.208648
6.014589,52.208512
6.014934,52.208433
6.015404,52.208346
6.018004,52.207885
6.019191,52.207672
6.019602,52.207601
6.020681,52.207393
...
          </coordinates>
        </LineString>
      </Placemark>
    </Folder>
  </Document>
</kml>

Python-ElementTree XML API（未按预期解析）

1 个答案: