用 python3 替换 KML 文件中的坐标

如何解决用 python3 替换 KML 文件中的坐标

我需要替换 KML 文件中的所有坐标：

<coordinates>
24.6206,58.0265,10
24.6218,58.0245,260
24.6234,58.0221,510
24.6257,58.0191,760
</coordinates>

我以这种方式尝试过，但最后root为空：

from pykml import parser
import requests

kmlFile = requests.get('https://predict.habhub.org/kml.PHP',params=ploadsKml)
root = parser.fromstring(bytes(kmlFile.text,encoding='utf8'))
    
coordinates_before = root.Document.Placemark.Linestring.coordinates
string_updated_coordinates="'\\n34.4534,56.5675\\n34.4786,57.1274\\n'"
updated_coordinates = literal_eval(string_updated_coordinates)
coordinates_before._setText(updated_coordinates)
print (root)

但 root 是空的。

这里是完整的kml文件：

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<name>Flight Path</name>
<description><![CDATA[Flight data be3aa40 <br>Site: 58.02651,24.62057 at 14:5 on 26/12/2020]]></description>
<Placemark>
<name>Path</name>
<description>Test v.78</description>
<styleUrl>#yellowpoly</styleUrl>
<Linestring>
<extrude>1</extrude>
<tesselate>1</tesselate>
<altitudeMode>absolute</altitudeMode>
<coordinates>
24.6206,760
</coordinates>
</Linestring></Placemark>
<Placemark>
<name>Balloon Launch</name>
<description>GPS TEST 58.0265,24.6206 </description>
<Point><coordinates>32.6206,78.0265,0</coordinates></Point>
</Placemark>
</Document></kml>

只需要替换这 4 个坐标，将其余信息保留在 kml 文件中。