from xml.dom.minidom import parse

def read_from_xml(file_path):
    # 读取文件
    dom = parse(file_path)
    # 获取文档元素对象
    data = dom.documentElement
    # 获取BoundingBox属性列表
    dict = data.getElementsByTagName('BoundingBox')[0].attributes._attrs

    dc = {}
    dc['minx'] = dict['minx'].nodeValue
    dc['miny'] = dict['miny'].nodeValue
    dc['maxx'] = dict['maxx'].nodeValue
    dc['maxy'] = dict['maxy'].nodeValue
    print(dc)

if __name__ == '__main__':
    file_path = 'tilemapresource.xml' # 改下路径
    read_from_xml(file_path)

<?xml version="1.0" encoding="utf-8"?>
    <TileMap version="1.0.0" tilemapservice="http://tms.osgeo.org/1.0.0">
      <Title>hy.tif</Title>
      <Abstract></Abstract>
      <SRS>EPSG:3857</SRS>
      <BoundingBox minx="100.37384033203003" miny="36.73888412439393" maxx="101.35162353515501" maxy="37.65338320128725"/>
      <Origin x="100.37384033203003" y="36.73888412439393"/>
      <TileFormat width="256" height="256" mime-type="image/png" extension="png"/>
      <TileSets profile="mercator">
        <TileSet href="2" units-per-pixel="39135.75847500000236" order="2"/>
        <TileSet href="3" units-per-pixel="19567.87923750000118" order="3"/>
        <TileSet href="4" units-per-pixel="9783.93961875000059" order="4"/>
        <TileSet href="5" units-per-pixel="4891.96980937500030" order="5"/>
        <TileSet href="6" units-per-pixel="2445.98490468750015" order="6"/>
        <TileSet href="7" units-per-pixel="1222.99245234375007" order="7"/>
        <TileSet href="8" units-per-pixel="611.49622617187504" order="8"/>
        <TileSet href="9" units-per-pixel="305.74811308593752" order="9"/>
        <TileSet href="10" units-per-pixel="152.87405654296876" order="10"/>
        <TileSet href="11" units-per-pixel="76.43702827148438" order="11"/>
        <TileSet href="12" units-per-pixel="38.21851413574219" order="12"/>
        <TileSet href="13" units-per-pixel="19.10925706787109" order="13"/>
        <TileSet href="14" units-per-pixel="9.55462853393555" order="14"/>
        <TileSet href="15" units-per-pixel="4.77731426696777" order="15"/>
        <TileSet href="16" units-per-pixel="2.38865713348389" order="16"/>
        <TileSet href="17" units-per-pixel="1.19432856674194" order="17"/>
      </TileSets>
    </TileMap>